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Wei Yongjun [Thu, 4 Jan 2018 07:42:15 +0000 (07:42 +0000)]
serial: 8250_uniphier: fix error return code in uniphier_uart_probe()
commit
7defa77d2baca4d6eb85234f10f38ab618332e75 upstream.
Fix to return a negative error code from the port register error
handling case instead of 0, as done elsewhere in this function.
Fixes:
39be40ce066d ("serial: 8250_uniphier: fix serial port index in private data")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Masahiro Yamada [Wed, 27 Dec 2017 05:21:05 +0000 (14:21 +0900)]
serial: 8250_of: fix return code when probe function fails to get reset
commit
b9820a31691b771db37afe2054dd3d3a680c1eed upstream.
The error pointer from devm_reset_control_get_optional_shared() is
not propagated.
One of the most common problem scenarios is it returns -EPROBE_DEFER
when the reset controller has not probed yet. In this case, the
probe of the reset consumer should be deferred.
Fixes:
e2860e1f62f2 ("serial: 8250_of: Add reset support")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Tue, 2 Jan 2018 10:01:41 +0000 (12:01 +0200)]
mei: me: allow runtime pm for platform with D0i3
commit
cc365dcf0e56271bedf3de95f88922abe248e951 upstream.
>From the pci power documentation:
"The driver itself should not call pm_runtime_allow(), though. Instead,
it should let user space or some platform-specific code do that (user space
can do it via sysfs as stated above)..."
However, the S0ix residency cannot be reached without MEI device getting
into low power state. Hence, for mei devices that support D0i3, it's better
to make runtime power management mandatory and not rely on the system
integration such as udev rules.
This policy cannot be applied globally as some older platforms
were found to have broken power management.
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ganesh Mahendran [Wed, 10 Jan 2018 02:49:05 +0000 (10:49 +0800)]
android: binder: use VM_ALLOC to get vm area
commit
aac6830ec1cb681544212838911cdc57f2638216 upstream.
VM_IOREMAP is used to access hardware through a mechanism called
I/O mapped memory. Android binder is a IPC machanism which will
not access I/O memory.
And VM_IOREMAP has alignment requiement which may not needed in
binder.
__get_vm_area_node()
{
...
if (flags & VM_IOREMAP)
align = 1ul << clamp_t(int, fls_long(size),
PAGE_SHIFT, IOREMAP_MAX_ORDER);
...
}
This patch will save some kernel vm area, especially for 32bit os.
In 32bit OS, kernel vm area is only 240MB. We may got below
error when launching a app:
<3>[ 4482.440053] binder_alloc: binder_alloc_mmap_handler: 15728
8ce67000-
8cf65000 get_vm_area failed -12
<3>[ 4483.218817] binder_alloc: binder_alloc_mmap_handler: 15745
8ce67000-
8cf65000 get_vm_area failed -12
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Acked-by: Martijn Coenen <maco@android.com>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martijn Coenen [Fri, 5 Jan 2018 10:27:07 +0000 (11:27 +0100)]
ANDROID: binder: remove waitqueue when thread exits.
commit
f5cb779ba16334b45ba8946d6bfa6d9834d1527f upstream.
binder_poll() passes the thread->wait waitqueue that
can be slept on for work. When a thread that uses
epoll explicitly exits using BINDER_THREAD_EXIT,
the waitqueue is freed, but it is never removed
from the corresponding epoll data structure. When
the process subsequently exits, the epoll cleanup
code tries to access the waitlist, which results in
a use-after-free.
Prevent this by using POLLFREE when the thread exits.
Signed-off-by: Martijn Coenen <maco@android.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Benjamin Herrenschmidt [Fri, 12 Jan 2018 06:50:02 +0000 (17:50 +1100)]
usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()
commit
11fb37998759c48e4e4c200c974593cbeab25d3e upstream.
The current code tries to test for bits that are masked out by
usb_endpoint_maxp(). Instead, use the proper accessor to access
the new high bandwidth bits.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Oliver Neukum [Thu, 11 Jan 2018 12:10:16 +0000 (13:10 +0100)]
usb: uas: unconditionally bring back host after reset
commit
cbeef22fd611c4f47c494b821b2b105b8af970bb upstream.
Quoting Hans:
If we return 1 from our post_reset handler, then our disconnect handler
will be called immediately afterwards. Since pre_reset blocks all scsi
requests our disconnect handler will then hang in the scsi_remove_host
call.
This is esp. bad because our disconnect handler hanging for ever also
stops the USB subsys from enumerating any new USB devices, causes commands
like lsusb to hang, etc.
In practice this happens when unplugging some uas devices because the hub
code may see the device as needing a warm-reset and calls usb_reset_device
before seeing the disconnect. In this case uas_configure_endpoints fails
with -ENODEV. We do not want to print an error for this, so this commit
also silences the shost_printk for -ENODEV.
ENDQUOTE
However, if we do that we better drop any unconditional execution
and report to the SCSI subsystem that we have undergone a reset
but we are not operational now.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hemant Kumar [Tue, 9 Jan 2018 07:00:53 +0000 (12:30 +0530)]
usb: f_fs: Prevent gadget unbind if it is already unbound
commit
ce5bf9a50daf2d9078b505aca1cea22e88ecb94a upstream.
Upon usb composition switch there is possibility of ep0 file
release happening after gadget driver bind. In case of composition
switch from adb to a non-adb composition gadget will never gets
bound again resulting into failure of usb device enumeration. Fix
this issue by checking FFS_FL_BOUND flag and avoid extra
gadget driver unbind if it is already done as part of composition
switch.
This fixes adb reconnection error reported on Android running
v4.4 and above kernel versions. Verified on Hikey running vanilla
v4.15-rc7 + few out of tree Mali patches.
Reviewed-at: https://android-review.googlesource.com/#/c/582632/
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg KH <gregkh@linux-foundation.org>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Dmitry Shmidt <dimitrysh@google.com>
Cc: Badhri <badhri@google.com>
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
[AmitP: Cherry-picked it from android-4.14 and updated the commit log]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Thu, 18 Jan 2018 03:46:41 +0000 (14:46 +1100)]
USB: serial: simple: add Motorola Tetra driver
commit
46fe895e22ab3845515ec06b01eaf1282b342e29 upstream.
Add new Motorola Tetra (simple) driver for Motorola Solutions TETRA PEI
devices.
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0cad ProdID=9011 Rev=24.16
S: Manufacturer=Motorola Solutions Inc.
S: Product=Motorola Solutions TETRA PEI interface
C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
Note that these devices do not support the CDC SET_CONTROL_LINE_STATE
request (for any interface).
Reported-by: Max Schulze <max.schulze@posteo.de>
Tested-by: Max Schulze <max.schulze@posteo.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shuah Khan [Wed, 17 Jan 2018 19:08:03 +0000 (12:08 -0700)]
usbip: list: don't list devices attached to vhci_hcd
commit
ef824501f50846589f02173d73ce3fe6021a9d2a upstream.
usbip host lists devices attached to vhci_hcd on the same server
when user does attach over localhost or specifies the server as the
remote.
usbip attach -r localhost -b busid
or
usbip attach -r servername (or server IP)
Fix it to check and not list devices that are attached to vhci_hcd.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shuah Khan [Wed, 17 Jan 2018 19:07:30 +0000 (12:07 -0700)]
usbip: prevent bind loops on devices attached to vhci_hcd
commit
ef54cf0c600fb8f5737fb001a9e357edda1a1de8 upstream.
usbip host binds to devices attached to vhci_hcd on the same server
when user does attach over localhost or specifies the server as the
remote.
usbip attach -r localhost -b busid
or
usbip attach -r servername (or server IP)
Unbind followed by bind works, however device is left in a bad state with
accesses via the attached busid result in errors and system hangs during
shutdown.
Fix it to check and bail out if the device is already attached to vhci_hcd.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jia-Ju Bai [Wed, 13 Dec 2017 12:34:36 +0000 (20:34 +0800)]
USB: serial: io_edgeport: fix possible sleep-in-atomic
commit
c7b8f77872c73f69a16528a9eb87afefcccdc18b upstream.
According to drivers/usb/serial/io_edgeport.c, the driver may sleep
under a spinlock.
The function call path is:
edge_bulk_in_callback (acquire the spinlock)
process_rcvd_data
process_rcvd_status
change_port_settings
send_iosp_ext_cmd
write_cmd_usb
usb_kill_urb --> may sleep
To fix it, the redundant usb_kill_urb() is removed from the error path
after usb_submit_urb() fails.
This possible bug is found by my static analysis tool (DSAC) and checked
by my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Oliver Neukum [Thu, 18 Jan 2018 11:13:45 +0000 (12:13 +0100)]
CDC-ACM: apply quirk for card reader
commit
df1cc78a52491f71d8170d513d0f6f114faa1bda upstream.
This devices drops random bytes from messages if you talk to it
too fast.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans de Goede [Sun, 14 Jan 2018 15:09:00 +0000 (16:09 +0100)]
USB: cdc-acm: Do not log urb submission errors on disconnect
commit
f0386c083c2ce85284dc0b419d7b89c8e567c09f upstream.
When disconnected sometimes the cdc-acm driver logs errors like these:
[20278.039417] cdc_acm 2-2:2.1: urb 9 failed submission with -19
[20278.042924] cdc_acm 2-2:2.1: urb 10 failed submission with -19
[20278.046449] cdc_acm 2-2:2.1: urb 11 failed submission with -19
[20278.049920] cdc_acm 2-2:2.1: urb 12 failed submission with -19
[20278.053442] cdc_acm 2-2:2.1: urb 13 failed submission with -19
[20278.056915] cdc_acm 2-2:2.1: urb 14 failed submission with -19
[20278.060418] cdc_acm 2-2:2.1: urb 15 failed submission with -19
Silence these by not logging errors when the result is -ENODEV.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Thu, 25 Jan 2018 08:48:55 +0000 (09:48 +0100)]
USB: serial: pl2303: new device id for Chilitag
commit
d08dd3f3dd2ae351b793fc5b76abdbf0fd317b12 upstream.
This adds a new device id for Chilitag devices to the pl2303 driver.
Reported-by: "Chu.Mike [朱堅宜]" <Mike-Chu@prolific.com.tw>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
OKAMOTO Yoshiaki [Tue, 16 Jan 2018 09:51:17 +0000 (09:51 +0000)]
usb: option: Add support for FS040U modem
commit
69341bd15018da0a662847e210f9b2380c71e623 upstream.
FS040U modem is manufactured by omega, and sold by Fujisoft. This patch
adds ID of the modem to use option1 driver. Interface 3 is used as
qmi_wwan, so the interface is ignored.
Signed-off-by: Yoshiaki Okamoto <yokamoto@allied-telesis.co.jp>
Signed-off-by: Hiroyuki Yamamoto <hyamamo@allied-telesis.co.jp>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gaurav Kohli [Tue, 23 Jan 2018 07:46:34 +0000 (13:16 +0530)]
tty: fix data race between tty_init_dev and flush of buf
commit
b027e2298bd588d6fa36ed2eda97447fb3eac078 upstream.
There can be a race, if receive_buf call comes before
tty initialization completes in n_tty_open and tty->disc_data
may be NULL.
CPU0 CPU1
---- ----
000|n_tty_receive_buf_common() n_tty_open()
-001|n_tty_receive_buf2() tty_ldisc_open.isra.3()
-002|tty_ldisc_receive_buf(inline) tty_ldisc_setup()
Using ldisc semaphore lock in tty_init_dev till disc_data
initializes completely.
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gilad Ben-Yossef [Thu, 14 Dec 2017 14:02:46 +0000 (14:02 +0000)]
staging: ccree: fix fips event irq handling build
commit
dc5591dc9c03e4cd22d3f0c3659196cc34668452 upstream.
When moving from internal for kernel FIPS infrastructure the FIPS event irq
handling code was left with the old ifdef by mistake. Fix it.
Fixes:
b7e607bf33a2 ("staging: ccree: move FIPS support to kernel infrastructure")
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gilad Ben-Yossef [Sun, 3 Dec 2017 13:58:19 +0000 (13:58 +0000)]
staging: ccree: NULLify backup_info when unused
commit
46df8824982e4fb0198776078d4a8c3e2d531464 upstream.
backup_info field is only allocated for decrypt code path.
The field was not nullified when not used causing a kfree
in an error handling path to attempt to free random
addresses as uncovered in stress testing.
Fixes:
737aed947f9b ("staging: ccree: save ciphertext for CTS IV")
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dmitry Eremin [Thu, 25 Jan 2018 13:51:04 +0000 (16:51 +0300)]
staging: lustre: separate a connection destroy from free struct kib_conn
commit
9b046013e5837f8a58453d1e9f8e01d03adb7fe7 upstream.
The logic of the original commit
4d99b2581eff ("staging: lustre: avoid
intensive reconnecting for ko2iblnd") was assumed conditional free of
struct kib_conn if the second argument free_conn in function
kiblnd_destroy_conn(struct kib_conn *conn, bool free_conn) is true.
But this hunk of code was dropped from original commit. As result the logic
works wrong and current code use struct kib_conn after free.
> drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
> 3317 kiblnd_destroy_conn(conn, !peer);
> ^^^^ Freed always (but should be conditionally)
> 3318
> 3319 spin_lock_irqsave(lock, flags);
> 3320 if (!peer)
> 3321 continue;
> 3322
> 3323 conn->ibc_peer = peer;
> ^^^^^^^^^^^^^^ Use after free
> 3324 if (peer->ibp_reconnected < KIB_RECONN_HIGH_RACE)
> 3325 list_add_tail(&conn->ibc_list,
> ^^^^^^^^^^^^^^ Use after free
> 3326 &kiblnd_data.kib_reconn_list);
> 3327 else
> 3328 list_add_tail(&conn->ibc_list,
> ^^^^^^^^^^^^^^ Use after free
> 3329 &kiblnd_data.kib_reconn_wait);
To avoid confusion this fix moved the freeing a struct kib_conn outside of
the function kiblnd_destroy_conn() and free as it was intended in original
commit.
Fixes:
4d99b2581eff ("staging: lustre: avoid intensive reconnecting for ko2iblnd")
Signed-off-by: Dmitry Eremin <Dmitry.Eremin@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Paolo Bonzini [Thu, 11 Jan 2018 15:55:24 +0000 (16:55 +0100)]
KVM: x86: emulate #UD while in guest mode
[ Upstream commit
bd89525a823ce6edddcedbe9aed79faa1b9cf544 ]
This reverts commits
ae1f57670703656cc9f293722c3b8b6782f8ab3f
and
ac9b305caa0df6f5b75d294e4b86c1027648991e.
If the hardware doesn't support MOVBE, but L0 sets CPUID.01H:ECX.MOVBE
in L1's emulated CPUID information, then L1 is likely to pass that
CPUID bit through to L2. L2 will expect MOVBE to work, but if L1
doesn't intercept #UD, then any MOVBE instruction executed in L2 will
raise #UD, and the exception will be delivered in L2.
Commit
ac9b305caa0df6f5b75d294e4b86c1027648991e is a better and more
complete version of
ae1f57670703 ("KVM: nVMX: Do not emulate #UD while
in guest mode"); however, neither considers the above case.
Suggested-by: Jim Mattson <jmattson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Schake [Fri, 29 Dec 2017 16:05:43 +0000 (17:05 +0100)]
drm/vc4: Move IRQ enable to PM path
[ Upstream commit
ce9caf2f79a5aa170a4b6456a03db639eed9c988 ]
We were calling enable_irq on bind, where it was already enabled previously
by the IRQ helper. Additionally, dev->irq is not set correctly until after
postinstall and so was always zero here, triggering a warning in 4.15.
Fix both by moving the enable to the power management resume path, where we
know there was a previous disable invocation during suspend.
Fixes:
253696ccd613 ("drm/vc4: Account for interrupts in flight")
Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1514563543-32511-1-git-send-email-stschake@gmail.com
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Sat, 25 Nov 2017 19:32:38 +0000 (13:32 -0600)]
staging: rtl8188eu: Fix incorrect response to SIOCGIWESSID
[ Upstream commit
b77992d2df9e47144354d1b25328b180afa33442 ]
When not associated with an AP, wifi device drivers should respond to the
SIOCGIWESSID ioctl with a zero-length string for the SSID, which is the
behavior expected by dhcpcd.
Currently, this driver returns an error code (-1) from the ioctl call,
which causes dhcpcd to assume that the device is not a wireless interface
and therefore it fails to work correctly with it thereafter.
This problem was reported and tested at
https://github.com/lwfinger/rtl8188eu/issues/234.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Colin Ian King [Tue, 14 Nov 2017 16:18:28 +0000 (16:18 +0000)]
usb: gadget: don't dereference g until after it has been null checked
[ Upstream commit
b2fc059fa549fe6881d4c1f8d698b0f50bcd16ec ]
Avoid dereferencing pointer g until after g has been sanity null checked;
move the assignment of cdev much later when it is required into a more
local scope.
Detected by CoverityScan, CID#
1222135 ("Dereference before null check")
Fixes:
b785ea7ce662 ("usb: gadget: composite: fix ep->maxburst initialization")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Juergen Gross [Fri, 24 Nov 2017 08:42:21 +0000 (09:42 +0100)]
x86/xen: Support early interrupts in xen pv guests
[ Upstream commit
42b3a4cb5609de757f5445fcad18945ba9239a07 ]
Add early interrupt handlers activated by idt_setup_early_handler() to
the handlers supported by Xen pv guests. This will allow for early
WARN() calls not crashing the guest.
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: boris.ostrovsky@oracle.com
Link: https://lkml.kernel.org/r/20171124084221.30172-1-jgross@suse.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Icenowy Zheng [Sun, 16 Apr 2017 06:51:16 +0000 (02:51 -0400)]
media: usbtv: add a new usbid
[ Upstream commit
04226916d2360f56d57ad00bc48d2d1854d1e0b0 ]
A new usbid of UTV007 is found in a newly bought device.
The usbid is 1f71:3301.
The ID on the chip is:
UTV007
A89029.1
1520L18K1
Both video and audio is tested with the modified usbtv driver.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Florian Fainelli [Tue, 7 Nov 2017 19:10:29 +0000 (11:10 -0800)]
ARM: dts: NSP: Fix PPI interrupt types
[ Upstream commit
5f1aa51c7a1eef1c5a60b8334e32c89904964245 ]
Booting a kernel results in the kernel warning us about the following
PPI interrupts configuration:
[ 0.105127] smp: Bringing up secondary CPUs ...
[ 0.110545] GIC: PPI11 is secure or misconfigured
[ 0.110551] GIC: PPI13 is secure or misconfigured
Fix this by using the appropriate edge configuration for PPI11 and
PPI13, this is similar to what was fixed for Northstar (BCM5301X) in
commit
0e34079cd1f6 ("ARM: dts: BCM5301X: Correct GIC_PPI interrupt
flags").
Fixes:
7b2e987de207 ("ARM: NSP: add minimal Northstar Plus device tree")
Fixes:
1a9d53cabaf4 ("ARM: dts: NSP: Add TWD Support to DT")
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Florian Fainelli [Tue, 7 Nov 2017 18:58:34 +0000 (10:58 -0800)]
ARM: dts: NSP: Disable AHCI controller for HR NSP boards
[ Upstream commit
77416ab35f5712382e5a792bfa1736ceb70d5bbb ]
The AHCI controller is currently enabled for all of these boards:
bcm958623hr and bcm958625hr would result in a hard hang on boot that we
cannot get rid of. Since this does not appear to have an easy and simple
fix, just disable the AHCI controller for now until this gets resolved.
Fixes:
70725d6e97ac ("ARM: dts: NSP: Enable SATA on bcm958625hr")
Fixes:
d454c3762437 ("ARM: dts: NSP: Add new DT file for bcm958623hr")
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sara Sharon [Mon, 20 Nov 2017 11:25:05 +0000 (13:25 +0200)]
iwlwifi: fix access to prph when transport is stopped
[ Upstream commit
0232d2cd7aa8e1b810fe84fb4059a0bd1eabe2ba ]
When getting HW rfkill we get stop_device being called from
two paths.
One path is the IRQ calling stop device, and updating op
mode and stack.
As a result, cfg80211 is running rfkill sync work that shuts
down all devices (second path).
In the second path, we eventually get to iwl_mvm_stop_device
which calls iwl_fw_dump_conf_clear->iwl_fw_dbg_stop_recording,
that access periphery registers.
The device may be stopped at this point from the first path,
which will result with a failure to access those registers.
Simply checking for the trans status is insufficient, since
the race will still exist, only minimized.
Instead, move the stop from iwl_fw_dump_conf_clear (which is
getting called only from stop path) to the transport stop
device function, where the access is always safe.
This has the added value, of actually stopping dbgc before
stopping device even when the stop is initiated from the
transport.
Fixes:
1efc3843a4ee ("iwlwifi: stop dbgc recording before stopping DMA")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Emmanuel Grumbach [Wed, 15 Nov 2017 12:12:30 +0000 (14:12 +0200)]
iwlwifi: mvm: fix the TX queue hang timeout for MONITOR vif type
[ Upstream commit
d1b275ffec459c5ae12b5c7086c84175696e5a9f ]
The MONITOR type is missing in the interface type switch.
Add it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gustavo A. R. Silva [Mon, 20 Nov 2017 14:12:29 +0000 (08:12 -0600)]
scsi: ufs: ufshcd: fix potential NULL pointer dereference in ufshcd_config_vreg
[ Upstream commit
727535903bea924c4f73abb202c4b3e85fff0ca4 ]
_vreg_ is being dereferenced before it is null checked, hence there is a
potential null pointer dereference.
Fix this by moving the pointer dereference after _vreg_ has been null
checked.
This issue was detected with the help of Coccinelle.
Fixes:
aa4976130934 ("ufs: Add regulator enable support")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Guilherme G. Piccoli [Fri, 17 Nov 2017 21:14:55 +0000 (19:14 -0200)]
scsi: aacraid: Prevent crash in case of free interrupt during scsi EH path
[ Upstream commit
e4717292ddebcfe231651b5aff9fa19ca158d178 ]
As part of the scsi EH path, aacraid performs a reinitialization of the
adapter, which encompass freeing resources and IRQs, NULLifying lots of
pointers, and then initialize it all over again. We've identified a
problem during the free IRQ portion of this path if CONFIG_DEBUG_SHIRQ
is enabled on kernel config file.
Happens that, in case this flag was set, right after free_irq()
effectively clears the interrupt, it checks if it was requested as
IRQF_SHARED. In positive case, it performs another call to the IRQ
handler on driver. Problem is: since aacraid currently free some
resources *before* freeing the IRQ, once free_irq() path calls the
handler again (due to CONFIG_DEBUG_SHIRQ), aacraid crashes due to NULL
pointer dereference with the following trace:
aac_src_intr_message+0xf8/0x740 [aacraid]
__free_irq+0x33c/0x4a0
free_irq+0x78/0xb0
aac_free_irq+0x13c/0x150 [aacraid]
aac_reset_adapter+0x2e8/0x970 [aacraid]
aac_eh_reset+0x3a8/0x5d0 [aacraid]
scsi_try_host_reset+0x74/0x180
scsi_eh_ready_devs+0xc70/0x1510
scsi_error_handler+0x624/0xa20
This patch prevents the crash by changing the order of the
deinitialization in this path of aacraid: first we clear the IRQ, then
we free other resources. No functional change intended.
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vasily Averin [Wed, 15 Nov 2017 05:47:02 +0000 (08:47 +0300)]
perf/core: Fix memory leak triggered by perf --namespace
[ Upstream commit
0e18dd12064e07519f7cbff4149ca7fff620cbed ]
perf with --namespace key leaks various memory objects including namespaces
4.14.0+
pid_namespace 1 12 2568 12 8
user_namespace 1 39 824 39 8
net_namespace 1 5 6272 5 8
This happen because perf_fill_ns_link_info() struct patch ns_path:
during initialization ns_path incremented counters on related mnt and dentry,
but without lost path_put nobody decremented them back.
Leaked dentry is name of related namespace,
and its leak does not allow to free unused namespace.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: commit
e422267322cd ("perf: Add PERF_RECORD_NAMESPACES to include namespaces related info")
Link: http://lkml.kernel.org/r/c510711b-3904-e5e1-d296-61273d21118d@virtuozzo.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Carlos Maiolino [Tue, 28 Nov 2017 16:54:10 +0000 (08:54 -0800)]
xfs: Properly retry failed dquot items in case of error during buffer writeback
[ Upstream commit
373b0589dc8d58bc09c9a28d03611ae4fb216057 ]
Once the inode item writeback errors is already fixed, it's time to fix the same
problem in dquot code.
Although there were no reports of users hitting this bug in dquot code (at least
none I've seen), the bug is there and I was already planning to fix it when the
correct approach to fix the inodes part was decided.
This patch aims to fix the same problem in dquot code, regarding failed buffers
being unable to be resubmitted once they are flush locked.
Tested with the recently test-case sent to fstests list by Hou Tao.
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Darrick J. Wong [Mon, 27 Nov 2017 17:50:17 +0000 (09:50 -0800)]
xfs: ubsan fixes
[ Upstream commit
22a6c83777ac7c17d6c63891beeeac24cf5da450 ]
Fix some complaints from the UBSAN about signed integer addition overflows.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Arnd Bergmann [Thu, 5 Oct 2017 12:06:41 +0000 (14:06 +0200)]
drm/omap: displays: panel-dpi: add backlight dependency
[ Upstream commit
499ec0ed5eb2f6a7fcaab2dd66ffc5993484bda9 ]
The new backlight code causes a link failure when backlight
support itself is disabled:
drivers/gpu/drm/omapdrm/displays/panel-dpi.o: In function `panel_dpi_probe_of':
panel-dpi.c:(.text+0x35c): undefined reference to `of_find_backlight_by_node'
This adds a Kconfig dependency like we have for the other OMAP
display targets.
Fixes:
39135a305a0f ("drm/omap: displays: panel-dpi: Support for handling backlight devices")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christophe JAILLET [Sun, 24 Sep 2017 06:01:03 +0000 (08:01 +0200)]
drm/omap: Fix error handling path in 'omap_dmm_probe()'
[ Upstream commit
8677b1ac2db021ab30bb1fa34f1e56ebe0051ec3 ]
If we don't find a matching device node, we must free the memory allocated
in 'omap_dmm' a few lines above.
Fixes:
7cb0d6c17b96 ("drm/omap: fix TILER on OMAP5")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Gusakov [Tue, 7 Nov 2017 16:56:24 +0000 (19:56 +0300)]
drm/bridge: tc358767: fix 1-lane behavior
[ Upstream commit
4dbd6c03fbf88299c573d676838896c6e06aade2 ]
Use drm_dp_channel_eq_ok helper
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-7-git-send-email-andrey.gusakov@cogentembedded.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Gusakov [Tue, 7 Nov 2017 16:56:23 +0000 (19:56 +0300)]
drm/bridge: tc358767: fix AUXDATAn registers access
[ Upstream commit
9217c1abbc145a77d65c476cf2004a3df02104c7 ]
First four bytes should go to DP0_AUXWDATA0. Due to bug if
len > 4 first four bytes was writen to DP0_AUXWDATA1 and all
data get shifted by 4 bytes. Fix it.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-6-git-send-email-andrey.gusakov@cogentembedded.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Gusakov [Tue, 7 Nov 2017 16:56:22 +0000 (19:56 +0300)]
drm/bridge: tc358767: fix timing calculations
[ Upstream commit
66d1c3b94d5d59e4325e61a78d520f92c043d645 ]
Fields in HTIM01 and HTIM02 regs should be even.
Recomended thresh_dly value is max_tu_symbol.
Remove set of VPCTRL0.VSDELAY as it is related to DSI input
interface. Currently driver supports only DPI.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-5-git-send-email-andrey.gusakov@cogentembedded.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Gusakov [Tue, 7 Nov 2017 16:56:21 +0000 (19:56 +0300)]
drm/bridge: tc358767: fix DP0_MISC register set
[ Upstream commit
f3b8adbe1911f66fd3cab1aaa74f0f66b7ceda25 ]
Remove shift from TU_SIZE_RECOMMENDED define as it used to
calculate max_tu_symbols.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-4-git-send-email-andrey.gusakov@cogentembedded.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Gusakov [Tue, 7 Nov 2017 16:56:20 +0000 (19:56 +0300)]
drm/bridge: tc358767: filter out too high modes
[ Upstream commit
99fc8e963a4c0203dba26a77cf737db6081bca14 ]
Pixel clock limitation for DPI is 154 MHz. Do not accept modes
with higher pixel clock rate.
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-3-git-send-email-andrey.gusakov@cogentembedded.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrey Gusakov [Tue, 7 Nov 2017 16:56:19 +0000 (19:56 +0300)]
drm/bridge: tc358767: do no fail on hi-res displays
[ Upstream commit
cffd2b16c01c3431a7a7dd62e722af33490fc436 ]
Do not fail data rates higher than 2.7 and more than 2 lanes.
Try to fall back to 2.7Gbps and 2 lanes.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-2-git-send-email-andrey.gusakov@cogentembedded.com
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eric Anholt [Tue, 14 Nov 2017 19:16:47 +0000 (11:16 -0800)]
drm/bridge: Fix lvds-encoder since the panel_bridge rework.
[ Upstream commit
dbb58bfd9ae6c885b2ca001a9a5ab8b881fb4ba9 ]
The panel_bridge bridge attaches to the panel's OF node, not the
lvds-encoder's node. Put in a little no-op bridge of our own so that
our consumers can still find a bridge where they expect.
This also fixes an unintended unregistration and leak of the
panel-bridge on module remove.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes:
13dfc0540a57 ("drm/bridge: Refactor out the panel wrapper from the lvds-encoder bri
dge.")
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114191647.22207-1-eric@anholt.net
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yisheng Xie [Thu, 30 Nov 2017 00:11:08 +0000 (16:11 -0800)]
kmemleak: add scheduling point to kmemleak_scan()
[ Upstream commit
bde5f6bc68db51128f875a756e9082a6c6ff7b4c ]
kmemleak_scan() will scan struct page for each node and it can be really
large and resulting in a soft lockup. We have seen a soft lockup when
do scan while compile kernel:
watchdog: BUG: soft lockup - CPU#53 stuck for 22s! [bash:10287]
[...]
Call Trace:
kmemleak_scan+0x21a/0x4c0
kmemleak_write+0x312/0x350
full_proxy_write+0x5a/0xa0
__vfs_write+0x33/0x150
vfs_write+0xad/0x1a0
SyS_write+0x52/0xc0
do_syscall_64+0x61/0x1a0
entry_SYSCALL64_slow_path+0x25/0x25
Fix this by adding cond_resched every MAX_SCAN_SIZE.
Link: http://lkml.kernel.org/r/1511439788-20099-1-git-send-email-xieyisheng1@huawei.com
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Liu, Changcheng [Thu, 30 Nov 2017 00:10:25 +0000 (16:10 -0800)]
scripts/faddr2line: extend usage on generic arch
[ Upstream commit
95a87982541932503d3f59aba4c30b0bde0a6294 ]
When cross-compiling, fadd2line should use the binary tool used for the
target system, rather than that of the host.
Link: http://lkml.kernel.org/r/20171121092911.GA150711@sofia
Signed-off-by: Liu Changcheng <changcheng.liu@intel.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: NeilBrown <neilb@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Trond Myklebust [Fri, 24 Nov 2017 17:00:24 +0000 (12:00 -0500)]
SUNRPC: Allow connect to return EHOSTUNREACH
[ Upstream commit
4ba161a793d5f43757c35feff258d9f20a082940 ]
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tetsuo Handa [Wed, 29 Nov 2017 13:34:50 +0000 (22:34 +0900)]
quota: Check for register_shrinker() failure.
[ Upstream commit
88bc0ede8d35edc969350852894dc864a2dc1859 ]
register_shrinker() might return -ENOMEM error since Linux 3.12.
Call panic() as with other failure checks in this function if
register_shrinker() failed.
Fixes:
1d3d4437eae1 ("vmscan: per-node deferred work")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Jan Kara <jack@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Reviewed-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Geert Uytterhoeven [Wed, 29 Nov 2017 10:01:09 +0000 (11:01 +0100)]
net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit
[ Upstream commit
15bfe05c8d6386f1a90e9340d15336e85e32aad6 ]
On 64-bit (e.g. powerpc64/allmodconfig):
drivers/net/ethernet/xilinx/ll_temac_main.c: In function 'temac_start_xmit_done':
drivers/net/ethernet/xilinx/ll_temac_main.c:633:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
dev_kfree_skb_irq((struct sk_buff *)cur_p->app4);
^
cdmac_bd.app4 is u32, so it is too small to hold a kernel pointer.
Note that several other fields in struct cdmac_bd are also too small to
hold physical addresses on 64-bit platforms.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christian König [Fri, 24 Nov 2017 10:39:30 +0000 (11:39 +0100)]
drm/amdgpu: don't try to move pinned BOs
[ Upstream commit
6edc6910ba4cd6eab309263539c8f09b8ad772bf ]
Never try to move pinned BOs during CS.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michal Hocko [Thu, 23 Nov 2017 16:13:40 +0000 (17:13 +0100)]
xfs: fortify xfs_alloc_buftarg error handling
[ Upstream commit
d210a9874b8f6166579408131cb74495caff1958 ]
percpu_counter_init failure path doesn't clean up &btp->bt_lru list.
Call list_lru_destroy in that error path. Similarly register_shrinker
error path is not handled.
While it is unlikely to trigger these error path, it is not impossible
especially the later might fail with large NUMAs. Let's handle the
failure to make the code more robust.
Noticed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Minwoo Im [Fri, 24 Nov 2017 18:03:00 +0000 (03:03 +0900)]
nvme-pci: fix NULL pointer dereference in nvme_free_host_mem()
[ Upstream commit
7e5dd57ef3081ff6c03908d786ed5087f6fbb7ae ]
Following condition which will cause NULL pointer dereference will
occur in nvme_free_host_mem() when it tries to remove pci device via
nvme_remove() especially after a failure of host memory allocation for HMB.
"(host_mem_descs == NULL) && (nr_host_mem_descs != 0)"
It's because __nr_host_mem_descs__ is not cleared to 0 unlike
__host_mem_descs__ is so.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Filipe Manana [Fri, 17 Nov 2017 01:54:00 +0000 (01:54 +0000)]
Btrfs: incremental send, fix wrong unlink path after renaming file
[ Upstream commit
ea37d5998b50a72b9045ba60a132eeb20e1c4230 ]
Under some circumstances, an incremental send operation can issue wrong
paths for unlink commands related to files that have multiple hard links
and some (or all) of those links were renamed between the parent and send
snapshots. Consider the following example:
Parent snapshot
. (ino 256)
|---- a/ (ino 257)
| |---- b/ (ino 259)
| | |---- c/ (ino 260)
| | |---- f2 (ino 261)
| |
| |---- f2l1 (ino 261)
|
|---- d/ (ino 262)
|---- f1l1_2 (ino 258)
|---- f2l2 (ino 261)
|---- f1_2 (ino 258)
Send snapshot
. (ino 256)
|---- a/ (ino 257)
| |---- f2l1/ (ino 263)
| |---- b2/ (ino 259)
| |---- c/ (ino 260)
| | |---- d3 (ino 262)
| | |---- f1l1_2 (ino 258)
| | |---- f2l2_2 (ino 261)
| | |---- f1_2 (ino 258)
| |
| |---- f2 (ino 261)
| |---- f1l2 (ino 258)
|
|---- d (ino 261)
When computing the incremental send stream the following steps happen:
1) When processing inode 261, a rename operation is issued that renames
inode 262, which currently as a path of "d", to an orphan name of
"o262-7-0". This is done because in the send snapshot, inode 261 has
of its hard links with a path of "d" as well.
2) Two link operations are issued that create the new hard links for
inode 261, whose names are "d" and "f2l2_2", at paths "/" and
"o262-7-0/" respectively.
3) Still while processing inode 261, unlink operations are issued to
remove the old hard links of inode 261, with names "f2l1" and "f2l2",
at paths "a/" and "d/". However path "d/" does not correspond anymore
to the directory inode 262 but corresponds instead to a hard link of
inode 261 (link command issued in the previous step). This makes the
receiver fail with a ENOTDIR error when attempting the unlink
operation.
The problem happens because before sending the unlink operation, we failed
to detect that inode 262 was one of ancestors for inode 261 in the parent
snapshot, and therefore we didn't recompute the path for inode 262 before
issuing the unlink operation for the link named "f2l2" of inode 262. The
detection failed because the function "is_ancestor()" only follows the
first hard link it finds for an inode instead of all of its hard links
(as it was originally created for being used with directories only, for
which only one hard link exists). So fix this by making "is_ancestor()"
follow all hard links of the input inode.
A test case for fstests follows soon.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Christophe JAILLET [Tue, 21 Nov 2017 19:46:49 +0000 (20:46 +0100)]
bnxt_en: Fix an error handling path in 'bnxt_get_module_eeprom()'
[ Upstream commit
dea521a2b9f96e905fa2bb2f95e23ec00c2ec436 ]
Error code returned by 'bnxt_read_sfp_module_eeprom_info()' is handled a
few lines above when reading the A0 portion of the EEPROM.
The same should be done when reading the A2 portion of the EEPROM.
In order to correctly propagate an error, update 'rc' in this 2nd call as
well, otherwise 0 (success) is returned.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Antoine Tenart [Tue, 28 Nov 2017 13:26:30 +0000 (14:26 +0100)]
net: phy: marvell10g: fix the PHY id mask
[ Upstream commit
952b6b3b07877419386e719ff20917170e1ce684 ]
The Marvell 10G PHY driver supports different hardware revisions, which
have their bits 3..0 differing. To get the correct revision number these
bits should be ignored. This patch fixes this by using the already
defined MARVELL_PHY_ID_MASK (0xfffffff0) instead of the custom
0xffffffff mask.
Fixes:
20b2af32ff3f ("net: phy: add Marvell Alaska X 88X3310 10Gigabit PHY support")
Suggested-by: Yan Markman <ymarkman@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Antoine Tenart [Tue, 28 Nov 2017 13:19:48 +0000 (14:19 +0100)]
net: mvpp2: fix the txq_init error path
[ Upstream commit
ba2d8d887d962c2f790e6dc01b2fd25b4608720b ]
When an allocation in the txq_init path fails, the allocated buffers
end-up being freed twice: in the txq_init error path, and in txq_deinit.
This lead to issues as txq_deinit would work on already freed memory
regions:
kernel BUG at mm/slub.c:3915!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
This patch fixes this by removing the txq_init own error path, as the
txq_deinit function is always called on errors. This was introduced by
TSO as way more buffers are allocated.
Fixes:
186cd4d4e414 ("net: mvpp2: software tso support")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chao Yu [Tue, 28 Nov 2017 15:01:44 +0000 (23:01 +0800)]
quota: propagate error from __dquot_initialize
[ Upstream commit
1a6152d36dee08da2be2a3030dceb45ef680460a ]
In commit
6184fc0b8dd7 ("quota: Propagate error from ->acquire_dquot()"),
we have propagated error from __dquot_initialize to caller, but we forgot
to handle such error in add_dquot_ref(), so, currently, during quota
accounting information initialization flow, if we failed for some of
inodes, we just ignore such error, and do account for others, which is
not a good implementation.
In this patch, we choose to let user be aware of such error, so after
turning on quota successfully, we can make sure all inodes disk usage
can be accounted, which will be more reasonable.
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Robert Lippert [Mon, 27 Nov 2017 23:51:55 +0000 (15:51 -0800)]
hwmon: (pmbus) Use 64bit math for DIRECT format values
[ Upstream commit
bd467e4eababe4c04272c1e646f066db02734c79 ]
Power values in the 100s of watt range can easily blow past
32bit math limits when processing everything in microwatts.
Use 64bit math instead to avoid these issues on common 32bit ARM
BMC platforms.
Fixes:
442aba78728e ("hwmon: PMBus device driver")
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vasily Averin [Mon, 13 Nov 2017 04:25:40 +0000 (07:25 +0300)]
lockd: fix "list_add double add" caused by legacy signal interface
[ Upstream commit
81833de1a46edce9ca20cfe079872ac1c20ef359 ]
restart_grace() uses hardcoded init_net.
It can cause to "list_add double add" in following scenario:
1) nfsd and lockd was started in several net namespaces
2) nfsd in init_net was stopped (lockd was not stopped because
it have users from another net namespaces)
3) lockd got signal, called restart_grace() -> set_grace_period()
and enabled lock_manager in hardcoded init_net.
4) nfsd in init_net is started again,
its lockd_up() calls set_grace_period() and tries to add
lock_manager into init_net 2nd time.
Jeff Layton suggest:
"Make it safe to call locks_start_grace multiple times on the same
lock_manager. If it's already on the global grace_list, then don't try
to add it again. (But we don't intentionally add twice, so for now we
WARN about that case.)
With this change, we also need to ensure that the nfsd4 lock manager
initializes the list before we call locks_start_grace. While we're at
it, move the rest of the nfsd_net initialization into
nfs4_state_create_net. I see no reason to have it spread over two
functions like it is today."
Suggested patch was updated to generate warning in described situation.
Suggested-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vasily Averin [Fri, 10 Nov 2017 07:19:26 +0000 (10:19 +0300)]
race of lockd inetaddr notifiers vs nlmsvc_rqst change
[ Upstream commit
6b18dd1c03e07262ea0866084856b2a3c5ba8d09 ]
lockd_inet[6]addr_event use nlmsvc_rqst without taken nlmsvc_mutex,
nlmsvc_rqst can be changed during execution of notifiers and crash the host.
Patch enables access to nlmsvc_rqst only when it was correctly initialized
and delays its cleanup until notifiers are no longer in use.
Note that nlmsvc_rqst can be temporally set to ERR_PTR, so the "if
(nlmsvc_rqst)" check in notifiers is insufficient on its own.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Tested-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrew Elble [Thu, 9 Nov 2017 18:41:10 +0000 (13:41 -0500)]
nfsd: check for use of the closed special stateid
[ Upstream commit
ae254dac721d44c0bfebe2795df87459e2e88219 ]
Prevent the use of the closed (invalid) special stateid by clients.
Signed-off-by: Andrew Elble <aweits@rit.edu>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vasily Averin [Mon, 6 Nov 2017 13:22:48 +0000 (16:22 +0300)]
grace: replace BUG_ON by WARN_ONCE in exit_net hook
[ Upstream commit
b872285751c1af010e12d02bce7069e2061a58ca ]
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Trond Myklebust [Fri, 3 Nov 2017 12:00:15 +0000 (08:00 -0400)]
nfsd: Ensure we check stateid validity in the seqid operation checks
[ Upstream commit
9271d7e509c1bfc0b9a418caec29ec8d1ac38270 ]
After taking the stateid st_mutex, we want to know that the stateid
still represents valid state before performing any non-idempotent
actions.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Trond Myklebust [Fri, 3 Nov 2017 12:00:12 +0000 (08:00 -0400)]
nfsd: CLOSE SHOULD return the invalid special stateid for NFSv4.x (x>0)
[ Upstream commit
fb500a7cfee7f2f447d2bbf30cb59629feab6ac1 ]
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Thomas Meyer [Thu, 10 Aug 2017 08:53:53 +0000 (10:53 +0200)]
auxdisplay: img-ascii-lcd: Only build on archs that have IOMEM
[ Upstream commit
141cbfba1d0502006463aa80f57c64086226af1a ]
This avoids the MODPOST error:
ERROR: "devm_ioremap_resource" [drivers/auxdisplay/img-ascii-lcd.ko] undefined!
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eduardo Otubo [Thu, 23 Nov 2017 14:18:35 +0000 (15:18 +0100)]
xen-netfront: remove warning when unloading module
[ Upstream commit
5b5971df3bc2775107ddad164018a8a8db633b81 ]
v2:
* Replace busy wait with wait_event()/wake_up_all()
* Cannot garantee that at the time xennet_remove is called, the
xen_netback state will not be XenbusStateClosed, so added a
condition for that
* There's a small chance for the xen_netback state is
XenbusStateUnknown by the time the xen_netfront switches to Closed,
so added a condition for that.
When unloading module xen_netfront from guest, dmesg would output
warning messages like below:
[ 105.236836] xen:grant_table: WARNING: g.e. 0x903 still in use!
[ 105.236839] deferring g.e. 0x903 (pfn 0x35805)
This problem relies on netfront and netback being out of sync. By the time
netfront revokes the g.e.'s netback didn't have enough time to free all of
them, hence displaying the warnings on dmesg.
The trick here is to make netfront to wait until netback frees all the g.e.'s
and only then continue to cleanup for the module removal, and this is done by
manipulating both device states.
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Colin Ian King [Wed, 22 Nov 2017 17:52:24 +0000 (17:52 +0000)]
i2c: i2c-boardinfo: fix memory leaks on devinfo
[ Upstream commit
66a7c84d677e8e4a5a2ef4afdb9bd52e1399a866 ]
Currently when an error occurs devinfo is still allocated but is
unused when the error exit paths break out of the for-loop. Fix
this by kfree'ing devinfo to avoid the leak.
Detected by CoverityScan, CID#
1416590 ("Resource Leak")
Fixes:
4124c4eba402 ("i2c: allow attaching IRQ resources to i2c_board_info")
Fixes:
0daaf99d8424 ("i2c: copy device properties when using i2c_register_board_info()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Darrick J. Wong [Wed, 22 Nov 2017 04:53:02 +0000 (20:53 -0800)]
xfs: log recovery should replay deferred ops in order
[ Upstream commit
509955823cc9cc225c05673b1b83d70ca70c5c60 ]
As part of testing log recovery with dm_log_writes, Amir Goldstein
discovered an error in the deferred ops recovery that lead to corruption
of the filesystem metadata if a reflink+rmap filesystem happened to shut
down midway through a CoW remap:
"This is what happens [after failed log recovery]:
"Phase 1 - find and verify superblock...
"Phase 2 - using internal log
" - zero log...
" - scan filesystem freespace and inode maps...
" - found root inode chunk
"Phase 3 - for each AG...
" - scan (but don't clear) agi unlinked lists...
" - process known inodes and perform inode discovery...
" - agno = 0
"data fork in regular inode 134 claims CoW block 376
"correcting nextents for inode 134
"bad data fork in inode 134
"would have cleared inode 134"
Hou Tao dissected the log contents of exactly such a crash:
"According to the implementation of xfs_defer_finish(), these ops should
be completed in the following sequence:
"Have been done:
"(1) CUI: Oper (160)
"(2) BUI: Oper (161)
"(3) CUD: Oper (194), for CUI Oper (160)
"(4) RUI A: Oper (197), free rmap [0x155, 2, -9]
"Should be done:
"(5) BUD: for BUI Oper (161)
"(6) RUI B: add rmap [0x155, 2, 137]
"(7) RUD: for RUI A
"(8) RUD: for RUI B
"Actually be done by xlog_recover_process_intents()
"(5) BUD: for BUI Oper (161)
"(6) RUI B: add rmap [0x155, 2, 137]
"(7) RUD: for RUI B
"(8) RUD: for RUI A
"So the rmap entry [0x155, 2, -9] for COW should be freed firstly,
then a new rmap entry [0x155, 2, 137] will be added. However, as we can see
from the log record in post_mount.log (generated after umount) and the trace
print, the new rmap entry [0x155, 2, 137] are added firstly, then the rmap
entry [0x155, 2, -9] are freed."
When reconstructing the internal log state from the log items found on
disk, it's required that deferred ops replay in exactly the same order
that they would have had the filesystem not gone down. However,
replaying unfinished deferred ops can create /more/ deferred ops. These
new deferred ops are finished in the wrong order. This causes fs
corruption and replay crashes, so let's create a single defer_ops to
handle the subsequent ops created during replay, then use one single
transaction at the end of log recovery to ensure that everything is
replayed in the same order as they're supposed to be.
Reported-by: Amir Goldstein <amir73il@gmail.com>
Analyzed-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Darrick J. Wong [Wed, 22 Nov 2017 20:21:07 +0000 (12:21 -0800)]
xfs: always free inline data before resetting inode fork during ifree
[ Upstream commit
98c4f78dcdd8cec112d1cbc5e9a792ee6e5ab7a6 ]
In xfs_ifree, we reset the data/attr forks to extents format without
bothering to free any inline data buffer that might still be around
after all the blocks have been truncated off the file. Prior to commit
43518812d2 ("xfs: remove support for inlining data/extents into the
inode fork") nobody noticed because the leftover inline data after
truncation was small enough to fit inside the inline buffer inside the
fork itself.
However, now that we've removed the inline buffer, we /always/ have to
free the inline data buffer or else we leak them like crazy. This test
was found by turning on kmemleak for generic/001 or generic/388.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jan H. Schönherr [Fri, 24 Nov 2017 21:39:01 +0000 (22:39 +0100)]
KVM: Let KVM_SET_SIGNAL_MASK work as advertised
[ Upstream commit
20b7035c66bacc909ae3ffe92c1a1ea7db99fe4f ]
KVM API says for the signal mask you set via KVM_SET_SIGNAL_MASK, that
"any unblocked signal received [...] will cause KVM_RUN to return with
-EINTR" and that "the signal will only be delivered if not blocked by
the original signal mask".
This, however, is only true, when the calling task has a signal handler
registered for a signal. If not, signal evaluation is short-circuited for
SIG_IGN and SIG_DFL, and the signal is either ignored without KVM_RUN
returning or the whole process is terminated.
Make KVM_SET_SIGNAL_MASK behave as advertised by utilizing logic similar
to that in do_sigtimedwait() to avoid short-circuiting of signals.
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Liu Bo [Tue, 21 Nov 2017 21:35:40 +0000 (14:35 -0700)]
Btrfs: fix list_add corruption and soft lockups in fsync
[ Upstream commit
ebb70442cdd4872260c2415929c456be3562da82 ]
Xfstests btrfs/146 revealed this corruption,
[ 58.138831] Buffer I/O error on dev dm-0, logical block
2621424, async page read
[ 58.151233] BTRFS error (device sdf): bdev /dev/mapper/error-test errs: wr 1, rd 0, flush 0, corrupt 0, gen 0
[ 58.152403] list_add corruption. prev->next should be next (
ffff88005e6775d8), but was
ffffc9000189be88. (prev=
ffffc9000189be88).
[ 58.153518] ------------[ cut here ]------------
[ 58.153892] WARNING: CPU: 1 PID: 1287 at lib/list_debug.c:31 __list_add_valid+0x169/0x1f0
...
[ 58.157379] RIP: 0010:__list_add_valid+0x169/0x1f0
...
[ 58.161956] Call Trace:
[ 58.162264] btrfs_log_inode_parent+0x5bd/0xfb0 [btrfs]
[ 58.163583] btrfs_log_dentry_safe+0x60/0x80 [btrfs]
[ 58.164003] btrfs_sync_file+0x4c2/0x6f0 [btrfs]
[ 58.164393] vfs_fsync_range+0x5f/0xd0
[ 58.164898] do_fsync+0x5a/0x90
[ 58.165170] SyS_fsync+0x10/0x20
[ 58.165395] entry_SYSCALL_64_fastpath+0x1f/0xbe
...
It turns out that we could record btrfs_log_ctx:io_err in
log_one_extents when IO fails, but make log_one_extents() return '0'
instead of -EIO, so the IO error is not acknowledged by the callers,
i.e. btrfs_log_inode_parent(), which would remove btrfs_log_ctx:list
from list head 'root->log_ctxs'. Since btrfs_log_ctx is allocated
from stack memory, it'd get freed with a object alive on the
list. then a future list_add will throw the above warning.
This returns the correct error in the above case.
Jeff also reported this while testing against his fsync error
patch set[1].
[1]: https://www.spinics.net/lists/linux-btrfs/msg65308.html
"btrfs list corruption and soft lockups while testing writeback error handling"
Fixes:
8407f553268a4611f254 ("Btrfs: fix data corruption after fast fsync and writeback error")
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Mon, 20 Nov 2017 22:52:21 +0000 (14:52 -0800)]
KVM: VMX: Fix rflags cache during vCPU reset
[ Upstream commit
c37c28730bb031cc8a44a130c2555c0f3efbe2d0 ]
Reported by syzkaller:
*** Guest State ***
CR0: actual=0x0000000080010031, shadow=0x0000000060000010, gh_mask=
fffffffffffffff7
CR4: actual=0x0000000000002061, shadow=0x0000000000000000, gh_mask=
ffffffffffffe8f1
CR3 = 0x000000002081e000
RSP = 0x000000000000fffa RIP = 0x0000000000000000
RFLAGS=0x00023000 DR7 = 0x00000000000000
^^^^^^^^^^
------------[ cut here ]------------
WARNING: CPU: 6 PID: 24431 at /home/kernel/linux/arch/x86/kvm//x86.c:7302 kvm_arch_vcpu_ioctl_run+0x651/0x2ea0 [kvm]
CPU: 6 PID: 24431 Comm: reprotest Tainted: G W OE 4.14.0+ #26
RIP: 0010:kvm_arch_vcpu_ioctl_run+0x651/0x2ea0 [kvm]
RSP: 0018:
ffff880291d179e0 EFLAGS:
00010202
Call Trace:
kvm_vcpu_ioctl+0x479/0x880 [kvm]
do_vfs_ioctl+0x142/0x9a0
SyS_ioctl+0x74/0x80
entry_SYSCALL_64_fastpath+0x23/0x9a
The failed vmentry is triggered by the following beautified testcase:
#include <unistd.h>
#include <sys/syscall.h>
#include <string.h>
#include <stdint.h>
#include <linux/kvm.h>
#include <fcntl.h>
#include <sys/ioctl.h>
long r[5];
int main()
{
struct kvm_debugregs dr = { 0 };
r[2] = open("/dev/kvm", O_RDONLY);
r[3] = ioctl(r[2], KVM_CREATE_VM, 0);
r[4] = ioctl(r[3], KVM_CREATE_VCPU, 7);
struct kvm_guest_debug debug = {
.control = 0xf0403,
.arch = {
.debugreg[6] = 0x2,
.debugreg[7] = 0x2
}
};
ioctl(r[4], KVM_SET_GUEST_DEBUG, &debug);
ioctl(r[4], KVM_RUN, 0);
}
which testcase tries to setup the processor specific debug
registers and configure vCPU for handling guest debug events through
KVM_SET_GUEST_DEBUG. The KVM_SET_GUEST_DEBUG ioctl will get and set
rflags in order to set TF bit if single step is needed. All regs' caches
are reset to avail and GUEST_RFLAGS vmcs field is reset to 0x2 during vCPU
reset. However, the cache of rflags is not reset during vCPU reset. The
function vmx_get_rflags() returns an unreset rflags cache value since
the cache is marked avail, it is 0 after boot. Vmentry fails if the
rflags reserved bit 1 is 0.
This patch fixes it by resetting both the GUEST_RFLAGS vmcs field and
its cache to 0x2 during vCPU reset.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wanpeng Li [Mon, 20 Nov 2017 22:55:05 +0000 (14:55 -0800)]
KVM: X86: Fix softlockup when get the current kvmclock
[ Upstream commit
e70b57a6ce4e8b92a56a615ae79bdb2bd66035e7 ]
watchdog: BUG: soft lockup - CPU#6 stuck for 22s! [qemu-system-x86:10185]
CPU: 6 PID: 10185 Comm: qemu-system-x86 Tainted: G OE 4.14.0-rc4+ #4
RIP: 0010:kvm_get_time_scale+0x4e/0xa0 [kvm]
Call Trace:
get_time_ref_counter+0x5a/0x80 [kvm]
kvm_hv_process_stimers+0x120/0x5f0 [kvm]
kvm_arch_vcpu_ioctl_run+0x4b4/0x1690 [kvm]
kvm_vcpu_ioctl+0x33a/0x620 [kvm]
do_vfs_ioctl+0xa1/0x5d0
SyS_ioctl+0x79/0x90
entry_SYSCALL_64_fastpath+0x1e/0xa9
This can be reproduced when running kvm-unit-tests/hyperv_stimer.flat and
cpu-hotplug stress simultaneously. __this_cpu_read(cpu_tsc_khz) returns 0
(set in kvmclock_cpu_down_prep()) when the pCPU is unhotplug which results
in kvm_get_time_scale() gets into an infinite loop.
This patch fixes it by treating the unhotplug pCPU as not using master clock.
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jeff Layton [Mon, 30 Oct 2017 15:20:15 +0000 (11:20 -0400)]
reiserfs: remove unneeded i_version bump
[ Upstream commit
9f97df50c52c2887432debb6238f4e43567386a5 ]
The i_version field in reiserfs is not initialized and is only ever
updated here. Nothing ever views it, so just remove it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Xin Long [Sat, 25 Nov 2017 13:05:36 +0000 (21:05 +0800)]
sctp: set sender next_tsn for the old result with ctsn_ack_point plus 1
[ Upstream commit
52a395896a051a3d5c34fba67c324f69ec5e67c6 ]
When doing asoc reset, if the sender of the response has already sent some
chunk and increased asoc->next_tsn before the duplicate request comes, the
response will use the old result with an incorrect sender next_tsn.
Better than asoc->next_tsn, asoc->ctsn_ack_point can't be changed after
the sender of the response has performed the asoc reset and before the
peer has confirmed it, and it's value is still asoc->next_tsn original
value minus 1.
This patch sets sender next_tsn for the old result with ctsn_ack_point
plus 1 when processing the duplicate request, to make sure the sender
next_tsn value peer gets will be always right.
Fixes:
692787cef651 ("sctp: implement receiver-side procedures for the SSN/TSN Reset Request Parameter")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Xin Long [Sat, 25 Nov 2017 13:05:35 +0000 (21:05 +0800)]
sctp: avoid flushing unsent queue when doing asoc reset
[ Upstream commit
159f2a7456c6ae95c1e1a58e8b8ec65ef12d51cf ]
Now when doing asoc reset, it cleans up sacked and abandoned queues
by calling sctp_outq_free where it also cleans up unsent, retransmit
and transmitted queues.
It's safe for the sender of response, as these 3 queues are empty at
that time. But when the receiver of response is doing the reset, the
users may already enqueue some chunks into unsent during the time
waiting the response, and these chunks should not be flushed.
To void the chunks in it would be removed, it moves the queue into a
temp list, then gets it back after sctp_outq_free is done.
The patch also fixes some incorrect comments in
sctp_process_strreset_tsnreq.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Xin Long [Sat, 25 Nov 2017 13:05:34 +0000 (21:05 +0800)]
sctp: only allow the asoc reset when the asoc outq is empty
[ Upstream commit
5c6144a0eb5366ae07fc5059301b139338f39bbd ]
As it says in rfc6525#section5.1.4, before sending the request,
C2: The sender has either no outstanding TSNs or considers all
outstanding TSNs abandoned.
Prior to this patch, it tried to consider all outstanding TSNs abandoned
by dropping all chunks in all outqs with sctp_outq_free (even including
sacked, retransmit and transmitted queues) when doing this reset, which
is too aggressive.
To make it work gently, this patch will only allow the asoc reset when
the sender has no outstanding TSNs by checking if unsent, transmitted
and retransmit are all empty with sctp_outq_is_empty before sending
and processing the request.
Fixes:
692787cef651 ("sctp: implement receiver-side procedures for the SSN/TSN Reset Request Parameter")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Josef Bacik [Wed, 15 Nov 2017 21:20:52 +0000 (16:20 -0500)]
btrfs: fix deadlock when writing out space cache
[ Upstream commit
b77000ed558daa3bef0899d29bf171b8c9b5e6a8 ]
If we fail to prepare our pages for whatever reason (out of memory in
our case) we need to make sure to drop the block_group->data_rwsem,
otherwise hilarity ensues.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add label and use existing unlocking code ]
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chun-Yeow Yeoh [Tue, 14 Nov 2017 15:20:05 +0000 (23:20 +0800)]
mac80211: fix the update of path metric for RANN frame
[ Upstream commit
fbbdad5edf0bb59786a51b94a9d006bc8c2da9a2 ]
The previous path metric update from RANN frame has not considered
the own link metric toward the transmitting mesh STA. Fix this.
Reported-by: Michael65535
Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johannes Berg [Tue, 21 Nov 2017 13:46:08 +0000 (14:46 +0100)]
mac80211: use QoS NDP for AP probing
[ Upstream commit
7b6ddeaf27eca72795ceeae2f0f347db1b5f9a30 ]
When connected to a QoS/WMM AP, mac80211 should use a QoS NDP
for probing it, instead of a regular non-QoS one, fix this.
Change all the drivers to *not* allow QoS NDP for now, even
though it looks like most of them should be OK with that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mirza Krak [Wed, 15 Nov 2017 08:24:46 +0000 (08:24 +0000)]
drm/rockchip: dw-mipi-dsi: fix possible un-balanced runtime PM enable
[ Upstream commit
517f56839f581618d24f2e67a35738a5c6cbaecb ]
In the case where the bind gets deferred we would end up with a
un-balanced runtime PM enable call.
Fix this by simply moving the pm_runtime_enable call to the end of
the bind function when all paths have succeeded.
Signed-off-by: Mirza Krak <mirza.krak@endian.se>
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510734286-37434-1-git-send-email-mirza.krak@endian.se
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
zhangliping [Sat, 25 Nov 2017 14:02:12 +0000 (22:02 +0800)]
openvswitch: fix the incorrect flow action alloc size
[ Upstream commit
67c8d22a73128ff910e2287567132530abcf5b71 ]
If we want to add a datapath flow, which has more than 500 vxlan outputs'
action, we will get the following error reports:
openvswitch: netlink: Flow action size 32832 bytes exceeds max
openvswitch: netlink: Flow action size 32832 bytes exceeds max
openvswitch: netlink: Actions may not be safe on all matching packets
... ...
It seems that we can simply enlarge the MAX_ACTIONS_BUFSIZE to fix it, but
this is not the root cause. For example, for a vxlan output action, we need
about 60 bytes for the nlattr, but after it is converted to the flow
action, it only occupies 24 bytes. This means that we can still support
more than 1000 vxlan output actions for a single datapath flow under the
the current 32k max limitation.
So even if the nla_len(attr) is larger than MAX_ACTIONS_BUFSIZE, we
shouldn't report EINVAL and keep it move on, as the judgement can be
done by the reserve_sfa_size.
Signed-off-by: zhangliping <zhangliping02@baidu.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sagi Grimberg [Thu, 23 Nov 2017 15:35:22 +0000 (17:35 +0200)]
nvme-rdma: don't complete requests before a send work request has completed
[ Upstream commit
4af7f7ff92a42b6c713293c99e7982bcfcf51a70 ]
In order to guarantee that the HCA will never get an access violation
(either from invalidated rkey or from iommu) when retrying a send
operation we must complete a request only when both send completion and
the nvme cqe has arrived. We need to set the send/recv completions flags
atomically because we might have more than a single context accessing the
request concurrently (one is cq irq-poll context and the other is
user-polling used in IOCB_HIPRI).
Only then we are safe to invalidate the rkey (if needed), unmap the host
buffers, and complete the IO.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dmitry V. Levin [Mon, 13 Nov 2017 00:35:27 +0000 (03:35 +0300)]
uapi: fix linux/kfd_ioctl.h userspace compilation errors
[ Upstream commit
b4d085201d86af69cbda2214c6dafc0be240ef9f ]
Consistently use types provided by <linux/types.h> via <drm/drm.h>
to fix the following linux/kfd_ioctl.h userspace compilation errors:
/usr/include/linux/kfd_ioctl.h:236:2: error: unknown type name 'uint64_t'
uint64_t va_addr; /* to KFD */
/usr/include/linux/kfd_ioctl.h:237:2: error: unknown type name 'uint32_t'
uint32_t gpu_id; /* to KFD */
/usr/include/linux/kfd_ioctl.h:238:2: error: unknown type name 'uint32_t'
uint32_t pad;
/usr/include/linux/kfd_ioctl.h:243:2: error: unknown type name 'uint64_t'
uint64_t tile_config_ptr;
/usr/include/linux/kfd_ioctl.h:245:2: error: unknown type name 'uint64_t'
uint64_t macro_tile_config_ptr;
/usr/include/linux/kfd_ioctl.h:249:2: error: unknown type name 'uint32_t'
uint32_t num_tile_configs;
/usr/include/linux/kfd_ioctl.h:253:2: error: unknown type name 'uint32_t'
uint32_t num_macro_tile_configs;
/usr/include/linux/kfd_ioctl.h:255:2: error: unknown type name 'uint32_t'
uint32_t gpu_id; /* to KFD */
/usr/include/linux/kfd_ioctl.h:256:2: error: unknown type name 'uint32_t'
uint32_t gb_addr_config; /* from KFD */
/usr/include/linux/kfd_ioctl.h:257:2: error: unknown type name 'uint32_t'
uint32_t num_banks; /* from KFD */
/usr/include/linux/kfd_ioctl.h:258:2: error: unknown type name 'uint32_t'
uint32_t num_ranks; /* from KFD */
Fixes:
6a1c9510694fe ("drm/amdkfd: Adding new IOCTL for scratch memory v2")
Fixes:
5d71dbc3a5886 ("drm/amdkfd: Implement image tiling mode support v2")
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Felix Kuehling [Wed, 1 Nov 2017 23:21:57 +0000 (19:21 -0400)]
drm/amdkfd: Fix SDMA oversubsription handling
[ Upstream commit
8c946b8988acec785bcf67088b6bd0747f36d2d3 ]
SDMA only supports a fixed number of queues. HWS cannot handle
oversubscription.
Signed-off-by: shaoyun liu <shaoyun.liu@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
shaoyunl [Wed, 1 Nov 2017 23:21:56 +0000 (19:21 -0400)]
drm/amdkfd: Fix SDMA ring buffer size calculation
[ Upstream commit
d12fb13f23199faa7e536acec1db49068e5a067d ]
ffs function return the position of the first bit set on 1 based.
(bit zero returns 1).
Signed-off-by: shaoyun liu <shaoyun.liu@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Felix Kuehling [Wed, 1 Nov 2017 23:21:55 +0000 (19:21 -0400)]
drm/amdgpu: Fix SDMA load/unload sequence on HWS disabled mode
[ Upstream commit
cf21654b40968609779751b34e7923180968fe5b ]
Fix the SDMA load and unload sequence as suggested by HW document.
Signed-off-by: shaoyun liu <shaoyun.liu@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Lyle [Fri, 24 Nov 2017 23:14:27 +0000 (15:14 -0800)]
bcache: check return value of register_shrinker
[ Upstream commit
6c4ca1e36cdc1a0a7a84797804b87920ccbebf51 ]
register_shrinker is now __must_check, so check it to kill a warning.
Caller of bch_btree_cache_alloc in super.c appropriately checks return
value so this is fully plumbed through.
This V2 fixes checkpatch warnings and improves the commit description,
as I was too hasty getting the previous version out.
Signed-off-by: Michael Lyle <mlyle@lyle.org>
Reviewed-by: Vojtech Pavlik <vojtech@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Howells [Fri, 24 Nov 2017 10:18:42 +0000 (10:18 +0000)]
rxrpc: Fix service endpoint expiry
[ Upstream commit
f859ab61875978eeaa539740ff7f7d91f5d60006 ]
RxRPC service endpoints expire like they're supposed to by the following
means:
(1) Mark dead rxrpc_net structs (with ->live) rather than twiddling the
global service conn timeout, otherwise the first rxrpc_net struct to
die will cause connections on all others to expire immediately from
then on.
(2) Mark local service endpoints for which the socket has been closed
(->service_closed) so that the expiration timeout can be much
shortened for service and client connections going through that
endpoint.
(3) rxrpc_put_service_conn() needs to schedule the reaper when the usage
count reaches 1, not 0, as idle conns have a 1 count.
(4) The accumulator for the earliest time we might want to schedule for
should be initialised to jiffies + MAX_JIFFY_OFFSET, not ULONG_MAX as
the comparison functions use signed arithmetic.
(5) Simplify the expiration handling, adding the expiration value to the
idle timestamp each time rather than keeping track of the time in the
past before which the idle timestamp must go to be expired. This is
much easier to read.
(6) Ignore the timeouts if the net namespace is dead.
(7) Restart the service reaper work item rather the client reaper.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Howells [Fri, 24 Nov 2017 10:18:40 +0000 (10:18 +0000)]
rxrpc: Provide a different lockdep key for call->user_mutex for kernel calls
[ Upstream commit
9faaff593404a9c4e5abc6839a641635d7b9d0cd ]
Provide a different lockdep key for rxrpc_call::user_mutex when the call is
made on a kernel socket, such as by the AFS filesystem.
The problem is that lockdep registers a false positive between userspace
calling the sendmsg syscall on a user socket where call->user_mutex is held
whilst userspace memory is accessed whereas the AFS filesystem may perform
operations with mmap_sem held by the caller.
In such a case, the following warning is produced.
======================================================
WARNING: possible circular locking dependency detected
4.14.0-fscache+ #243 Tainted: G E
------------------------------------------------------
modpost/16701 is trying to acquire lock:
(&vnode->io_lock){+.+.}, at: [<
ffffffffa000fc40>] afs_begin_vnode_operation+0x33/0x77 [kafs]
but task is already holding lock:
(&mm->mmap_sem){++++}, at: [<
ffffffff8104376a>] __do_page_fault+0x1ef/0x486
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&mm->mmap_sem){++++}:
__might_fault+0x61/0x89
_copy_from_iter_full+0x40/0x1fa
rxrpc_send_data+0x8dc/0xff3
rxrpc_do_sendmsg+0x62f/0x6a1
rxrpc_sendmsg+0x166/0x1b7
sock_sendmsg+0x2d/0x39
___sys_sendmsg+0x1ad/0x22b
__sys_sendmsg+0x41/0x62
do_syscall_64+0x89/0x1be
return_from_SYSCALL_64+0x0/0x75
-> #2 (&call->user_mutex){+.+.}:
__mutex_lock+0x86/0x7d2
rxrpc_new_client_call+0x378/0x80e
rxrpc_kernel_begin_call+0xf3/0x154
afs_make_call+0x195/0x454 [kafs]
afs_vl_get_capabilities+0x193/0x198 [kafs]
afs_vl_lookup_vldb+0x5f/0x151 [kafs]
afs_create_volume+0x2e/0x2f4 [kafs]
afs_mount+0x56a/0x8d7 [kafs]
mount_fs+0x6a/0x109
vfs_kern_mount+0x67/0x135
do_mount+0x90b/0xb57
SyS_mount+0x72/0x98
do_syscall_64+0x89/0x1be
return_from_SYSCALL_64+0x0/0x75
-> #1 (k-sk_lock-AF_RXRPC){+.+.}:
lock_sock_nested+0x74/0x8a
rxrpc_kernel_begin_call+0x8a/0x154
afs_make_call+0x195/0x454 [kafs]
afs_fs_get_capabilities+0x17a/0x17f [kafs]
afs_probe_fileserver+0xf7/0x2f0 [kafs]
afs_select_fileserver+0x83f/0x903 [kafs]
afs_fetch_status+0x89/0x11d [kafs]
afs_iget+0x16f/0x4f8 [kafs]
afs_mount+0x6c6/0x8d7 [kafs]
mount_fs+0x6a/0x109
vfs_kern_mount+0x67/0x135
do_mount+0x90b/0xb57
SyS_mount+0x72/0x98
do_syscall_64+0x89/0x1be
return_from_SYSCALL_64+0x0/0x75
-> #0 (&vnode->io_lock){+.+.}:
lock_acquire+0x174/0x19f
__mutex_lock+0x86/0x7d2
afs_begin_vnode_operation+0x33/0x77 [kafs]
afs_fetch_data+0x80/0x12a [kafs]
afs_readpages+0x314/0x405 [kafs]
__do_page_cache_readahead+0x203/0x2ba
filemap_fault+0x179/0x54d
__do_fault+0x17/0x60
__handle_mm_fault+0x6d7/0x95c
handle_mm_fault+0x24e/0x2a3
__do_page_fault+0x301/0x486
do_page_fault+0x236/0x259
page_fault+0x22/0x30
__clear_user+0x3d/0x60
padzero+0x1c/0x2b
load_elf_binary+0x785/0xdc7
search_binary_handler+0x81/0x1ff
do_execveat_common.isra.14+0x600/0x888
do_execve+0x1f/0x21
SyS_execve+0x28/0x2f
do_syscall_64+0x89/0x1be
return_from_SYSCALL_64+0x0/0x75
other info that might help us debug this:
Chain exists of:
&vnode->io_lock --> &call->user_mutex --> &mm->mmap_sem
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&mm->mmap_sem);
lock(&call->user_mutex);
lock(&mm->mmap_sem);
lock(&vnode->io_lock);
*** DEADLOCK ***
1 lock held by modpost/16701:
#0: (&mm->mmap_sem){++++}, at: [<
ffffffff8104376a>] __do_page_fault+0x1ef/0x486
stack backtrace:
CPU: 0 PID: 16701 Comm: modpost Tainted: G E 4.14.0-fscache+ #243
Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014
Call Trace:
dump_stack+0x67/0x8e
print_circular_bug+0x341/0x34f
check_prev_add+0x11f/0x5d4
? add_lock_to_list.isra.12+0x8b/0x8b
? add_lock_to_list.isra.12+0x8b/0x8b
? __lock_acquire+0xf77/0x10b4
__lock_acquire+0xf77/0x10b4
lock_acquire+0x174/0x19f
? afs_begin_vnode_operation+0x33/0x77 [kafs]
__mutex_lock+0x86/0x7d2
? afs_begin_vnode_operation+0x33/0x77 [kafs]
? afs_begin_vnode_operation+0x33/0x77 [kafs]
? afs_begin_vnode_operation+0x33/0x77 [kafs]
afs_begin_vnode_operation+0x33/0x77 [kafs]
afs_fetch_data+0x80/0x12a [kafs]
afs_readpages+0x314/0x405 [kafs]
__do_page_cache_readahead+0x203/0x2ba
? filemap_fault+0x179/0x54d
filemap_fault+0x179/0x54d
__do_fault+0x17/0x60
__handle_mm_fault+0x6d7/0x95c
handle_mm_fault+0x24e/0x2a3
__do_page_fault+0x301/0x486
do_page_fault+0x236/0x259
page_fault+0x22/0x30
RIP: 0010:__clear_user+0x3d/0x60
RSP: 0018:
ffff880071e93da0 EFLAGS:
00010202
RAX:
0000000000000000 RBX:
000000000000011c RCX:
000000000000011c
RDX:
0000000000000000 RSI:
0000000000000008 RDI:
000000000060f720
RBP:
000000000060f720 R08:
0000000000000001 R09:
0000000000000000
R10:
0000000000000001 R11:
ffff8800b5459b68 R12:
ffff8800ce150e00
R13:
000000000060f720 R14:
00000000006127a8 R15:
0000000000000000
padzero+0x1c/0x2b
load_elf_binary+0x785/0xdc7
search_binary_handler+0x81/0x1ff
do_execveat_common.isra.14+0x600/0x888
do_execve+0x1f/0x21
SyS_execve+0x28/0x2f
do_syscall_64+0x89/0x1be
entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x7fdb6009ee07
RSP: 002b:
00007fff566d9728 EFLAGS:
00000246 ORIG_RAX:
000000000000003b
RAX:
ffffffffffffffda RBX:
000055ba57280900 RCX:
00007fdb6009ee07
RDX:
000055ba5727f270 RSI:
000055ba5727cac0 RDI:
000055ba57280900
RBP:
000055ba57280900 R08:
00007fff566d9700 R09:
0000000000000000
R10:
000055ba5727cac0 R11:
0000000000000246 R12:
0000000000000000
R13:
000055ba5727cac0 R14:
000055ba5727f270 R15:
0000000000000000
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Howells [Fri, 24 Nov 2017 10:18:40 +0000 (10:18 +0000)]
rxrpc: The mutex lock returned by rxrpc_accept_call() needs releasing
[ Upstream commit
03a6c82218b9a87014b2c6c4e178294fdc8ebd8a ]
The caller of rxrpc_accept_call() must release the lock on call->user_mutex
returned by that function.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Schwidefsky [Wed, 22 Nov 2017 16:19:32 +0000 (17:19 +0100)]
s390: fix alloc_pgste check in init_new_context again
[ Upstream commit
53c4ab70c11c3ba1b9e3caa8e8c17e9c16d9cbc0 ]
git commit
badb8bb983e9 "fix alloc_pgste check in init_new_context" fixed
the problem of 'current->mm == NULL' in init_new_context back in 2011.
git commit
3eabaee998c7 "KVM: s390: allow sie enablement for multi-
threaded programs" completely removed the check against alloc_pgste.
git commit
23fefe119ceb "s390/kvm: avoid global config of vm.alloc_pgste=1"
re-added a check against the alloc_pgste flag but without the required
check for current->mm != NULL.
For execve() called by a kernel thread init_new_context() reads from
((struct mm_struct *) NULL)->context.alloc_pgste to decide between
2K vs 4K page tables. If the bit happens to be set for the init process
it will be created with large page tables. This decision is inherited by
all the children of init, this waste quite some memory.
Re-add the check for 'current->mm != NULL'.
Fixes:
23fefe119ceb ("s390/kvm: avoid global config of vm.alloc_pgste=1")
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Disseldorp [Wed, 8 Nov 2017 16:29:44 +0000 (17:29 +0100)]
null_blk: fix dev->badblocks leak
[ Upstream commit
1addb798e93893d33c8dfab743cd44f09fd7719a ]
null_alloc_dev() allocates memory for dev->badblocks, but cleanup
currently only occurs in the configfs release codepath, missing a number
of other places.
This bug was found running the blktests block/010 test, alongside
kmemleak:
rapido1:/blktests# ./check block/010
...
rapido1:/blktests# echo scan > /sys/kernel/debug/kmemleak
[ 306.966708] kmemleak: 32 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
rapido1:/blktests# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88001f86d000 (size 4096):
comm "modprobe", pid 231, jiffies
4294892415 (age 318.252s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<
ffffffff814b0379>] kmemleak_alloc+0x49/0xa0
[<
ffffffff810f180f>] kmem_cache_alloc+0x9f/0xe0
[<
ffffffff8124e45f>] badblocks_init+0x2f/0x60
[<
ffffffffa0019fae>] 0xffffffffa0019fae
[<
ffffffffa0021273>] nullb_device_badblocks_store+0x63/0x130 [null_blk]
[<
ffffffff810004cd>] do_one_initcall+0x3d/0x170
[<
ffffffff8109fe0d>] do_init_module+0x56/0x1e9
[<
ffffffff8109ebd7>] load_module+0x1c47/0x26a0
[<
ffffffff8109f819>] SyS_finit_module+0xa9/0xd0
[<
ffffffff814b4f60>] entry_SYSCALL_64_fastpath+0x13/0x94
Fixes:
2f54a613c942 ("nullb: badbblocks support")
Reviewed-by: Shaohua Li <shli@fb.com>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James Hogan [Wed, 15 Nov 2017 21:17:55 +0000 (21:17 +0000)]
cpufreq: Add Loongson machine dependencies
[ Upstream commit
0d307935fefa6389eb726c6362351c162c949101 ]
The MIPS loongson cpufreq drivers don't build unless configured for the
correct machine type, due to dependency on machine specific architecture
headers and symbols in machine specific platform code.
More specifically loongson1-cpufreq.c uses RST_CPU_EN and RST_CPU,
neither of which is defined in asm/mach-loongson32/regs-clk.h unless
CONFIG_LOONGSON1_LS1B=y, and loongson2_cpufreq.c references
loongson2_clockmod_table[], which is only defined in
arch/mips/loongson64/lemote-2f/clock.c, i.e. when
CONFIG_LEMOTE_MACH2F=y.
Add these dependencies to Kconfig to avoid randconfig / allyesconfig
build failures (e.g. when based on BMIPS which also has a cpufreq
driver).
Signed-off-by: James Hogan <jhogan@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans de Goede [Sun, 15 Oct 2017 19:24:49 +0000 (21:24 +0200)]
ACPI / bus: Leave modalias empty for devices which are not present
[ Upstream commit
10809bb976648ac58194a629e3d7af99e7400297 ]
Most Bay and Cherry Trail devices use a generic DSDT with all possible
peripheral devices present in the DSDT, with their _STA returning 0x00 or
0x0f based on AML variables which describe what is actually present on
the board.
Since ACPI device objects with a 0x00 status (not present) still get an
entry under /sys/bus/acpi/devices, and those entry had an acpi:PNPID
modalias, userspace would end up loading modules for non present hardware.
This commit fixes this by leaving the modalias empty for non present
devices. This results in 10 modules less being loaded with a generic
distro kernel config on my Cherry Trail test-device (a GPD pocket).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Harald Freudenberger [Fri, 17 Nov 2017 15:32:22 +0000 (16:32 +0100)]
s390/zcrypt: Fix wrong comparison leading to strange load balancing
[ Upstream commit
0b0882672640ced4deeebf84da0b88b6389619c4 ]
The function to decide if one zcrypt queue is better than
another one compared two pointers instead of comparing the
values where the pointers refer to. So within the same
zcrypt card when load of each queue was equal just one queue
was used. This effect only appears on relatively lite load,
typically with one thread applications.
This patch fixes the wrong comparison and now the counters
show that requests are balanced equally over all available
queues within the cards.
There is no performance improvement coming with this fix.
As long as the queue depth for an APQN queue is not touched,
processing is not faster when requests are spread over
queues within the same card hardware. So this fix only
beautifies the lszcrypt counter printouts.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Thomas Richter [Thu, 16 Nov 2017 13:26:36 +0000 (14:26 +0100)]
s390/topology: fix compile error in file arch/s390/kernel/smp.c
[ Upstream commit
38389ec84e835fa31a59b7dabb18343106a6d0d5 ]
Commit
1887aa07b676
("s390/topology: add detection of dedicated vs shared CPUs")
introduced following compiler error when CONFIG_SCHED_TOPOLOGY is not set.
CC arch/s390/kernel/smp.o
...
arch/s390/kernel/smp.c: In function ‘smp_start_secondary’:
arch/s390/kernel/smp.c:812:6: error: implicit declaration of function
‘topology_cpu_dedicated’; did you mean ‘topology_cpu_init’?
This patch fixes the compiler error by adding function
topology_cpu_dedicated() to return false when this config option is
not defined.
Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James Smart [Fri, 10 Nov 2017 23:38:45 +0000 (15:38 -0800)]
nvmet-fc: correct ref counting error when deferred rcv used
[ Upstream commit
619c62dcc62b957d17cccde2081cad527b020883 ]
Whenever a cmd is received a reference is taken while looking up the
queue. The reference is removed after the cmd is done as the iod is
returned for reuse. The fod may be reused for a deferred (recevied but
no job context) cmd. Existing code removes the reference only if the
fod is not reused for another command. Given the fod may be used for
one or more ios, although a reference was taken per io, it won't be
matched on the frees.
Remove the reference on every fod free. This pairs the references to
each io.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Minwoo Im [Thu, 16 Nov 2017 16:34:24 +0000 (01:34 +0900)]
nvme-pci: avoid hmb desc array idx out-of-bound when hmmaxd set.
[ Upstream commit
244a8fe40a09c218622eb9927b9090b0a9b73a1a ]
hmb descriptor idx out-of-bound occurs in case of below conditions.
preferred = 128MiB
chunk_size = 4MiB
hmmaxd = 1
Current code will not allow rmmod which will free hmb descriptors
to be done successfully in above case.
"descs[i]" will be set in for-loop without seeing any conditions
related to "max_entries" after a single "descs" was allocated by
(max_entries = 1) in this case.
Added a condition into for-loop to check index of descriptors.
Fixes:
044a9df1("nvme-pci: implement the HMB entry number and size limitations")
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kai-Heng Feng [Thu, 9 Nov 2017 06:12:03 +0000 (01:12 -0500)]
nvme-pci: disable APST on Samsung SSD 960 EVO + ASUS PRIME B350M-A
[ Upstream commit
8427bbc224863e14d905c87920d4005cb3e88ac3 ]
The NVMe device in question drops off the PCIe bus after system suspend.
I've tried several approaches to workaround this issue, but none of them
works:
- NVME_QUIRK_DELAY_BEFORE_CHK_RDY
- NVME_QUIRK_NO_DEEPEST_PS
- Disable APST before controller shutdown
- Delay between controller shutdown and system suspend
- Explicitly set power state to 0 before controller shutdown
Fortunately it's a desktop, so disable APST won't hurt the battery.
Also, change the quirk function name to reflect it's for vendor
combination quirks.
BugLink: https://bugs.launchpad.net/bugs/1705748
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>