OSDN Git Service
Colin Ian King [Fri, 16 Sep 2016 10:09:25 +0000 (11:09 +0100)]
ALSA: au88x0: Add missing \n to end of dev_err message
Trival fix, the dev_err message is missing a \n so add it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Wed, 14 Sep 2016 22:25:20 +0000 (07:25 +0900)]
ALSA: rename TLV-related macros so that they're friendly to user applications
In a previous commit, some macros newly appeared to UAPI header for TLV
packet. These macros have short names and they easily bring name conflist
to applications. The conflict can be avoided to rename them with a proper
prefix.
For this purpose, this commit renames these macros with prefix
'SNDRV_CTL_TLVD_'.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Wed, 14 Sep 2016 22:25:19 +0000 (07:25 +0900)]
ALSA: control: move layout of TLV payload to UAPI header
In ALSA control interface, each element set can have threshold level
information. This information is transferred between drivers/applications,
in a shape of tlv packet. The layout of this packet is defined in
'uapi/sound/asound.h' (struct snd_ctl_tlv):
struct snd_ctl_tlv {
unsigned int numid;
unsigned int length;
unsigned int tlv[0];
};
Data in the payload (struct snd_ctl_tlv.tlv) is expected to be filled
according to our own protocol. This protocol is described in
'include/sound/tlv.h'. A layout of the payload is expected as:
struct snd_ctl_tlv.tlv[0]: one of SNDRV_CTL_TLVT_XXX
struct snd_ctl_tlv.tlv[1]: Length of data
struct snd_ctl_tlv.tlv[2...]: data
Unfortunately, the macro is not exported to user land yet, thus
applications cannot get to know the protocol.
Additionally, ALSA control core has a feature called as 'user-defined'
element set. This allows applications to add/remove arbitrary element sets
with elements to control devices. Elements in the element set can be
operated by the same way as the ones added by in-kernel implementation.
For threshold level information of 'user-defined' element set, applications
need to register the information to an element set. However, as described
above, layout of the payload is closed in kernel land. This is quite
inconvenient, too.
This commit moves the protocol to UAPI header for TLV.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Tue, 13 Sep 2016 10:37:53 +0000 (19:37 +0900)]
ALSA: seq: fix to copy from/to user space
When checking value of request for copy operation, current implementation
compares shifted value to macros, while these macros are already shifted.
As a result, it never performs to copy from/to user space.
This commit fixes the bug.
Fixes:
8ce8eb601c71('ALSA: seq: add an alternative way to handle ioctl requests'
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Sun, 11 Sep 2016 13:05:43 +0000 (15:05 +0200)]
ALSA: pci: constify local structures
For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.
Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Sun, 11 Sep 2016 07:33:12 +0000 (09:33 +0200)]
Merge branch 'for-linus' into for-next
Back-merge from for-linus just to make the further development easier.
Hui Wang [Sun, 11 Sep 2016 03:26:16 +0000 (11:26 +0800)]
ALSA: hda - Fix headset mic detection problem for several Dell laptops
One of the laptops has the codec ALC256 on it, applying the
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE can fix the problem, the rest
of laptops have the codec ALC295 on them, they are similar to machines
with ALC225, applying the ALC269_FIXUP_DELL1_MIC_NO_PRESENCE can fix
the problem.
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Thu, 8 Sep 2016 10:15:02 +0000 (12:15 +0200)]
ALSA: hda - Skip Realtek SKU check for Lenovo machines
Realtek codec driver expects an implicit rule where either the codec
SSID or the pincfg NID 0x1d contains the some information encoded in
some bits. One of the expected information is there is the
availability of PC beep, and the driver doesn't build up the PC beep
control if this is *supposed* to be disabled there.
Meanwhile, Lenovo doesn't seem to follow this requirement (yes it's
non-standard after all), and the BIOS sets just the normal SSID and
the pincfg values. This resulted in the lack of PC beep on a few
machines, purely with a lucky or unlucky number. It didn't bother
most people, but some people still demand the PC beep, as found in bug
reports.
This patch just adds the fixup chain to Lenovo machines to skip the
SKU checks. Then the beep control will show up in the mixer, and user
can still decide to enable / disable it via the standard mixer
interface.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=156311
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Tue, 30 Aug 2016 12:45:46 +0000 (14:45 +0200)]
ALSA: rawmidi: Fix possible deadlock with virmidi registration
When a seq-virmidi driver is initialized, it registers a rawmidi
instance with its callback to create an associated seq kernel client.
Currently it's done throughly in rawmidi's register_mutex context.
Recently it was found that this may lead to a deadlock another rawmidi
device that is being attached with the sequencer is accessed, as both
open with the same register_mutex. This was actually triggered by
syzkaller, as Dmitry Vyukov reported:
======================================================
[ INFO: possible circular locking dependency detected ]
4.8.0-rc1+ #11 Not tainted
-------------------------------------------------------
syz-executor/7154 is trying to acquire lock:
(register_mutex#5){+.+.+.}, at: [<
ffffffff84fd6d4b>] snd_rawmidi_kernel_open+0x4b/0x260 sound/core/rawmidi.c:341
but task is already holding lock:
(&grp->list_mutex){++++.+}, at: [<
ffffffff850138bb>] check_and_subscribe_port+0x5b/0x5c0 sound/core/seq/seq_ports.c:495
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&grp->list_mutex){++++.+}:
[<
ffffffff8147a3a8>] lock_acquire+0x208/0x430 kernel/locking/lockdep.c:3746
[<
ffffffff863f6199>] down_read+0x49/0xc0 kernel/locking/rwsem.c:22
[< inline >] deliver_to_subscribers sound/core/seq/seq_clientmgr.c:681
[<
ffffffff85005c5e>] snd_seq_deliver_event+0x35e/0x890 sound/core/seq/seq_clientmgr.c:822
[<
ffffffff85006e96>] > snd_seq_kernel_client_dispatch+0x126/0x170 sound/core/seq/seq_clientmgr.c:2418
[<
ffffffff85012c52>] snd_seq_system_broadcast+0xb2/0xf0 sound/core/seq/seq_system.c:101
[<
ffffffff84fff70a>] snd_seq_create_kernel_client+0x24a/0x330 sound/core/seq/seq_clientmgr.c:2297
[< inline >] snd_virmidi_dev_attach_seq sound/core/seq/seq_virmidi.c:383
[<
ffffffff8502d29f>] snd_virmidi_dev_register+0x29f/0x750 sound/core/seq/seq_virmidi.c:450
[<
ffffffff84fd208c>] snd_rawmidi_dev_register+0x30c/0xd40 sound/core/rawmidi.c:1645
[<
ffffffff84f816d3>] __snd_device_register.part.0+0x63/0xc0 sound/core/device.c:164
[< inline >] __snd_device_register sound/core/device.c:162
[<
ffffffff84f8235d>] snd_device_register_all+0xad/0x110 sound/core/device.c:212
[<
ffffffff84f7546f>] snd_card_register+0xef/0x6c0 sound/core/init.c:749
[<
ffffffff85040b7f>] snd_virmidi_probe+0x3ef/0x590 sound/drivers/virmidi.c:123
[<
ffffffff833ebf7b>] platform_drv_probe+0x8b/0x170 drivers/base/platform.c:564
......
-> #0 (register_mutex#5){+.+.+.}:
[< inline >] check_prev_add kernel/locking/lockdep.c:1829
[< inline >] check_prevs_add kernel/locking/lockdep.c:1939
[< inline >] validate_chain kernel/locking/lockdep.c:2266
[<
ffffffff814791f4>] __lock_acquire+0x4d44/0x4d80 kernel/locking/lockdep.c:3335
[<
ffffffff8147a3a8>] lock_acquire+0x208/0x430 kernel/locking/lockdep.c:3746
[< inline >] __mutex_lock_common kernel/locking/mutex.c:521
[<
ffffffff863f0ef1>] mutex_lock_nested+0xb1/0xa20 kernel/locking/mutex.c:621
[<
ffffffff84fd6d4b>] snd_rawmidi_kernel_open+0x4b/0x260 sound/core/rawmidi.c:341
[<
ffffffff8502e7c7>] midisynth_subscribe+0xf7/0x350 sound/core/seq/seq_midi.c:188
[< inline >] subscribe_port sound/core/seq/seq_ports.c:427
[<
ffffffff85013cc7>] check_and_subscribe_port+0x467/0x5c0 sound/core/seq/seq_ports.c:510
[<
ffffffff85015da9>] snd_seq_port_connect+0x2c9/0x500 sound/core/seq/seq_ports.c:579
[<
ffffffff850079b8>] snd_seq_ioctl_subscribe_port+0x1d8/0x2b0 sound/core/seq/seq_clientmgr.c:1480
[<
ffffffff84ffe9e4>] snd_seq_do_ioctl+0x184/0x1e0 sound/core/seq/seq_clientmgr.c:2225
[<
ffffffff84ffeae8>] snd_seq_kernel_client_ctl+0xa8/0x110 sound/core/seq/seq_clientmgr.c:2440
[<
ffffffff85027664>] snd_seq_oss_midi_open+0x3b4/0x610 sound/core/seq/oss/seq_oss_midi.c:375
[<
ffffffff85023d67>] snd_seq_oss_synth_setup_midi+0x107/0x4c0 sound/core/seq/oss/seq_oss_synth.c:281
[<
ffffffff8501b0a8>] snd_seq_oss_open+0x748/0x8d0 sound/core/seq/oss/seq_oss_init.c:274
[<
ffffffff85019d8a>] odev_open+0x6a/0x90 sound/core/seq/oss/seq_oss.c:138
[<
ffffffff84f7040f>] soundcore_open+0x30f/0x640 sound/sound_core.c:639
......
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&grp->list_mutex);
lock(register_mutex#5);
lock(&grp->list_mutex);
lock(register_mutex#5);
*** DEADLOCK ***
======================================================
The fix is to simply move the registration parts in
snd_rawmidi_dev_register() to the outside of the register_mutex lock.
The lock is needed only to manage the linked list, and it's not
necessarily to cover the whole initialization process.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Wed, 7 Sep 2016 13:45:31 +0000 (15:45 +0200)]
ALSA: timer: Fix zero-division by continue of uninitialized instance
When a user timer instance is continued without the explicit start
beforehand, the system gets eventually zero-division error like:
divide error: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN
CPU: 1 PID: 27320 Comm: syz-executor Not tainted 4.8.0-rc3-next-
20160825+ #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task:
ffff88003c9b2280 task.stack:
ffff880027280000
RIP: 0010:[<
ffffffff858e1a6c>] [< inline >] ktime_divns include/linux/ktime.h:195
RIP: 0010:[<
ffffffff858e1a6c>] [<
ffffffff858e1a6c>] snd_hrtimer_callback+0x1bc/0x3c0 sound/core/hrtimer.c:62
Call Trace:
<IRQ>
[< inline >] __run_hrtimer kernel/time/hrtimer.c:1238
[<
ffffffff81504335>] __hrtimer_run_queues+0x325/0xe70 kernel/time/hrtimer.c:1302
[<
ffffffff81506ceb>] hrtimer_interrupt+0x18b/0x420 kernel/time/hrtimer.c:1336
[<
ffffffff8126d8df>] local_apic_timer_interrupt+0x6f/0xe0 arch/x86/kernel/apic/apic.c:933
[<
ffffffff86e13056>] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:957
[<
ffffffff86e1210c>] apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:487
<EOI>
.....
Although a similar issue was spotted and a fix patch was merged in
commit [
6b760bb2c63a: ALSA: timer: fix division by zero after
SNDRV_TIMER_IOCTL_CONTINUE], it seems covering only a part of
iceberg.
In this patch, we fix the issue a bit more drastically. Basically the
continue of an uninitialized timer is supposed to be a fresh start, so
we do it for user timers. For the direct snd_timer_continue() call,
there is no way to pass the initial tick value, so we kick out for the
uninitialized case.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Masahiro Yamada [Tue, 6 Sep 2016 11:41:19 +0000 (20:41 +0900)]
ALSA: squash lines for simple wrapper functions
Remove unneeded variables and assignments.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Jeeja KP [Fri, 2 Sep 2016 16:19:44 +0000 (21:49 +0530)]
ALSA: pcm: Fix avail to return error if stream is suspended
When the stream is in suspended state some applications wait
on "Stream Pipe Error" in response to snd_pcm_avail call to
resume the stream.
In the current implementation snd_pcm_avail() returns zero
when the stream is in suspended state. This causes application
to enter in infinite loop for frames to be available.
"Stream pipe Error" code is getting returned for read/write
call when the stream is in suspended state. Similarly update
snd_pcm_avail to return -ESTRPIPE.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Vegard Nossum [Sun, 28 Aug 2016 08:13:07 +0000 (10:13 +0200)]
ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
I got this with syzkaller:
==================================================================
BUG: KASAN: null-ptr-deref on address
0000000000000020
Read of size 32 by task syz-executor/22519
CPU: 1 PID: 22519 Comm: syz-executor Not tainted 4.8.0-rc2+ #169
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2
014
0000000000000001 ffff880111a17a00 ffffffff81f9f141 ffff880111a17a90
ffff880111a17c50 ffff880114584a58 ffff880114584a10 ffff880111a17a80
ffffffff8161fe3f ffff880100000000 ffff880118d74a48 ffff880118d74a68
Call Trace:
[<
ffffffff81f9f141>] dump_stack+0x83/0xb2
[<
ffffffff8161fe3f>] kasan_report_error+0x41f/0x4c0
[<
ffffffff8161ff74>] kasan_report+0x34/0x40
[<
ffffffff82c84b54>] ? snd_timer_user_read+0x554/0x790
[<
ffffffff8161e79e>] check_memory_region+0x13e/0x1a0
[<
ffffffff8161e9c1>] kasan_check_read+0x11/0x20
[<
ffffffff82c84b54>] snd_timer_user_read+0x554/0x790
[<
ffffffff82c84600>] ? snd_timer_user_info_compat.isra.5+0x2b0/0x2b0
[<
ffffffff817d0831>] ? proc_fault_inject_write+0x1c1/0x250
[<
ffffffff817d0670>] ? next_tgid+0x2a0/0x2a0
[<
ffffffff8127c278>] ? do_group_exit+0x108/0x330
[<
ffffffff8174653a>] ? fsnotify+0x72a/0xca0
[<
ffffffff81674dfe>] __vfs_read+0x10e/0x550
[<
ffffffff82c84600>] ? snd_timer_user_info_compat.isra.5+0x2b0/0x2b0
[<
ffffffff81674cf0>] ? do_sendfile+0xc50/0xc50
[<
ffffffff81745e10>] ? __fsnotify_update_child_dentry_flags+0x60/0x60
[<
ffffffff8143fec6>] ? kcov_ioctl+0x56/0x190
[<
ffffffff81e5ada2>] ? common_file_perm+0x2e2/0x380
[<
ffffffff81746b0e>] ? __fsnotify_parent+0x5e/0x2b0
[<
ffffffff81d93536>] ? security_file_permission+0x86/0x1e0
[<
ffffffff816728f5>] ? rw_verify_area+0xe5/0x2b0
[<
ffffffff81675355>] vfs_read+0x115/0x330
[<
ffffffff81676371>] SyS_read+0xd1/0x1a0
[<
ffffffff816762a0>] ? vfs_write+0x4b0/0x4b0
[<
ffffffff82001c2c>] ? __this_cpu_preempt_check+0x1c/0x20
[<
ffffffff8150455a>] ? __context_tracking_exit.part.4+0x3a/0x1e0
[<
ffffffff816762a0>] ? vfs_write+0x4b0/0x4b0
[<
ffffffff81005524>] do_syscall_64+0x1c4/0x4e0
[<
ffffffff810052fc>] ? syscall_return_slowpath+0x16c/0x1d0
[<
ffffffff83c3276a>] entry_SYSCALL64_slow_path+0x25/0x25
==================================================================
There are a couple of problems that I can see:
- ioctl(SNDRV_TIMER_IOCTL_SELECT), which potentially sets
tu->queue/tu->tqueue to NULL on memory allocation failure, so read()
would get a NULL pointer dereference like the above splat
- the same ioctl() can free tu->queue/to->tqueue which means read()
could potentially see (and dereference) the freed pointer
We can fix both by taking the ioctl_lock mutex when dereferencing
->queue/->tqueue, since that's always held over all the ioctl() code.
Just looking at the code I find it likely that there are more problems
here such as tu->qhead pointing outside the buffer if the size is
changed concurrently using SNDRV_TIMER_IOCTL_PARAMS.
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Thu, 1 Sep 2016 22:13:14 +0000 (00:13 +0200)]
ALSA: bt87x: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Thu, 1 Sep 2016 22:13:13 +0000 (00:13 +0200)]
ALSA: oxygen: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Thu, 1 Sep 2016 22:13:12 +0000 (00:13 +0200)]
ALSA: ad1889: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Thu, 1 Sep 2016 22:13:11 +0000 (00:13 +0200)]
ALSA: firewire: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Thu, 1 Sep 2016 22:13:10 +0000 (00:13 +0200)]
ALSA: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Thu, 1 Sep 2016 22:13:09 +0000 (00:13 +0200)]
ALSA: cs5535audio: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Colin Ian King [Thu, 1 Sep 2016 10:15:44 +0000 (11:15 +0100)]
ALSA: cs46xx: fix typo "seconadry" -> "secondary"
Trivial fix to typos dev_dbg messages and comment.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Wed, 31 Aug 2016 13:58:42 +0000 (22:58 +0900)]
ALSA: fireworks: accessing to user space outside spinlock
In hwdep interface of fireworks driver, accessing to user space is in a
critical section with disabled local interrupt. Depending on architecture,
accessing to user space can cause page fault exception. Then local
processor stores machine status and handles the synchronous event. A
handler corresponding to the event can call task scheduler to wait for
preparing pages. In a case of usage of single core processor, the state to
disable local interrupt is worse because it don't handle usual interrupts
from hardware.
This commit fixes this bug, performing the accessing outside spinlock. This
commit also gives up counting the number of queued response messages to
simplify ring-buffer management.
Reported-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
Cc: stable@vger.kernel.org
Fixes:
555e8a8f7f14('ALSA: fireworks: Add command/response functionality into hwdep interface')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Wed, 31 Aug 2016 11:15:32 +0000 (20:15 +0900)]
ALSA: firewire-tascam: accessing to user space outside spinlock
In hwdep interface of firewire-tascam driver, accessing to user space is
in a critical section with disabled local interrupt. Depending on
architecture, accessing to user space can cause page fault exception. Then
local processor stores machine status and handle the synchronous event. A
handler corresponding to the event can call task scheduler to wait for
preparing pages. In a case of usage of single core processor, the state to
disable local interrupt is worse because it doesn't handle usual interrupts
from hardware.
This commit fixes this bug, by performing the accessing outside spinlock.
Reported-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
Cc: stable@vger.kernel.org
Fixes:
e5e0c3dd257b('ALSA: firewire-tascam: add hwdep interface')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Wed, 31 Aug 2016 12:02:13 +0000 (21:02 +0900)]
ALSA: seq: initialize whole fields of automatic variable with union type
Currently, automatic variable of 'union ioctl_arg' type is initialized
by designated initialization. Although, the actual effect is interpretation
of early element of int type and initialization of 'int pversion'.
Therefore the first field corresponding to int type is initialized to zero.
This is against my expectation to initialize whole fields.
This commit uses memset() to initialize the variable, instead of designated
initialization.
Fixes:
04a56dd8ed0d ('ALSA: seq: change ioctl command operation to get data in kernel space')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kai-Heng Feng [Tue, 30 Aug 2016 07:36:34 +0000 (15:36 +0800)]
ALSA: hda - Enable subwoofer on Dell Inspiron 7559
The subwoofer on Inspiron 7559 was disabled originally.
Applying a pin fixup to node 0x1b can enable it and make it work.
Old pin: 0x411111f0
New pin: 0x90170151
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Shrirang Bagul [Mon, 29 Aug 2016 07:19:27 +0000 (15:19 +0800)]
ALSA: hda - Add headset mic quirk for Dell Inspiron 5468
This patch enables headset microphone on some variants of
Dell Inspiron 5468. (Dell SSID 0x07ad)
BugLink: https://bugs.launchpad.net/bugs/1617900
Signed-off-by: Shrirang Bagul <shrirang.bagul@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Ken Lin [Fri, 12 Aug 2016 18:08:47 +0000 (14:08 -0400)]
ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114
Avoid getting sample rate on B850V3 CP2114 as it is unsupported and
causes noisy "current rate is different from the runtime rate" messages
when playback starts.
Signed-off-by: Ken Lin <ken.lin@advantech.com.tw>
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Vegard Nossum [Sun, 28 Aug 2016 22:33:51 +0000 (00:33 +0200)]
ALSA: timer: fix NULL pointer dereference on memory allocation failure
I hit this with syzkaller:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1327 Comm: a.out Not tainted 4.8.0-rc2+ #190
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014
task:
ffff88011278d600 task.stack:
ffff8801120c0000
RIP: 0010:[<
ffffffff82c8ba07>] [<
ffffffff82c8ba07>] snd_hrtimer_start+0x77/0x100
RSP: 0018:
ffff8801120c7a60 EFLAGS:
00010006
RAX:
dffffc0000000000 RBX:
0000000000000000 RCX:
0000000000000007
RDX:
0000000000000009 RSI:
1ffff10023483091 RDI:
0000000000000048
RBP:
ffff8801120c7a78 R08:
ffff88011a5cf768 R09:
ffff88011a5ba790
R10:
0000000000000002 R11:
ffffed00234b9ef1 R12:
ffff880114843980
R13:
ffffffff84213c00 R14:
ffff880114843ab0 R15:
0000000000000286
FS:
00007f72958f3700(0000) GS:
ffff88011aa00000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000000000603001 CR3:
00000001126ab000 CR4:
00000000000006f0
Stack:
ffff880114843980 ffff880111eb2dc0 ffff880114843a34 ffff8801120c7ad0
ffffffff82c81ab1 0000000000000000 ffffffff842138e0 0000000100000000
ffff880111eb2dd0 ffff880111eb2dc0 0000000000000001 ffff880111eb2dc0
Call Trace:
[<
ffffffff82c81ab1>] snd_timer_start1+0x331/0x670
[<
ffffffff82c85bfd>] snd_timer_start+0x5d/0xa0
[<
ffffffff82c8795e>] snd_timer_user_ioctl+0x88e/0x2830
[<
ffffffff8159f3a0>] ? __follow_pte.isra.49+0x430/0x430
[<
ffffffff82c870d0>] ? snd_timer_pause+0x80/0x80
[<
ffffffff815a26fa>] ? do_wp_page+0x3aa/0x1c90
[<
ffffffff8132762f>] ? put_prev_entity+0x108f/0x21a0
[<
ffffffff82c870d0>] ? snd_timer_pause+0x80/0x80
[<
ffffffff816b0733>] do_vfs_ioctl+0x193/0x1050
[<
ffffffff813510af>] ? cpuacct_account_field+0x12f/0x1a0
[<
ffffffff816b05a0>] ? ioctl_preallocate+0x200/0x200
[<
ffffffff81002f2f>] ? syscall_trace_enter+0x3cf/0xdb0
[<
ffffffff815045ba>] ? __context_tracking_exit.part.4+0x9a/0x1e0
[<
ffffffff81002b60>] ? exit_to_usermode_loop+0x190/0x190
[<
ffffffff82001a97>] ? check_preemption_disabled+0x37/0x1e0
[<
ffffffff81d93889>] ? security_file_ioctl+0x89/0xb0
[<
ffffffff816b167f>] SyS_ioctl+0x8f/0xc0
[<
ffffffff816b15f0>] ? do_vfs_ioctl+0x1050/0x1050
[<
ffffffff81005524>] do_syscall_64+0x1c4/0x4e0
[<
ffffffff83c32b2a>] entry_SYSCALL64_slow_path+0x25/0x25
Code: c7 c7 c4 b9 c8 82 48 89 d9 4c 89 ee e8 63 88 7f fe e8 7e 46 7b fe 48 8d 7b 48 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 84 c0 7e 65 80 7b 48 00 74 0e e8 52 46
RIP [<
ffffffff82c8ba07>] snd_hrtimer_start+0x77/0x100
RSP <
ffff8801120c7a60>
---[ end trace
5955b08db7f2b029 ]---
This can happen if snd_hrtimer_open() fails to allocate memory and
returns an error, which is currently not checked by snd_timer_open():
ioctl(SNDRV_TIMER_IOCTL_SELECT)
- snd_timer_user_tselect()
- snd_timer_close()
- snd_hrtimer_close()
- (struct snd_timer *) t->private_data = NULL
- snd_timer_open()
- snd_hrtimer_open()
- kzalloc() fails; t->private_data is still NULL
ioctl(SNDRV_TIMER_IOCTL_START)
- snd_timer_user_start()
- snd_timer_start()
- snd_timer_start1()
- snd_hrtimer_start()
- t->private_data == NULL // boom
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Vegard Nossum [Sun, 28 Aug 2016 22:33:50 +0000 (00:33 +0200)]
ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
I got this:
divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1327 Comm: a.out Not tainted 4.8.0-rc2+ #189
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014
task:
ffff8801120a9580 task.stack:
ffff8801120b0000
RIP: 0010:[<
ffffffff82c8bd9a>] [<
ffffffff82c8bd9a>] snd_hrtimer_callback+0x1da/0x3f0
RSP: 0018:
ffff88011aa87da8 EFLAGS:
00010006
RAX:
0000000000004f76 RBX:
ffff880112655e88 RCX:
0000000000000000
RDX:
0000000000000000 RSI:
ffff880112655ea0 RDI:
0000000000000001
RBP:
ffff88011aa87e00 R08:
ffff88013fff905c R09:
ffff88013fff9048
R10:
ffff88013fff9050 R11:
00000001050a7b8c R12:
ffff880114778a00
R13:
ffff880114778ab4 R14:
ffff880114778b30 R15:
0000000000000000
FS:
00007f071647c700(0000) GS:
ffff88011aa80000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000000000603001 CR3:
0000000112021000 CR4:
00000000000006e0
Stack:
0000000000000000 ffff880114778ab8 ffff880112655ea0 0000000000004f76
ffff880112655ec8 ffff880112655e80 ffff880112655e88 ffff88011aa98fc0
00000000b97ccf2b dffffc0000000000 ffff88011aa98fc0 ffff88011aa87ef0
Call Trace:
<IRQ>
[<
ffffffff813abce7>] __hrtimer_run_queues+0x347/0xa00
[<
ffffffff82c8bbc0>] ? snd_hrtimer_close+0x130/0x130
[<
ffffffff813ab9a0>] ? retrigger_next_event+0x1b0/0x1b0
[<
ffffffff813ae1a6>] ? hrtimer_interrupt+0x136/0x4b0
[<
ffffffff813ae220>] hrtimer_interrupt+0x1b0/0x4b0
[<
ffffffff8120f91e>] local_apic_timer_interrupt+0x6e/0xf0
[<
ffffffff81227ad3>] ? kvm_guest_apic_eoi_write+0x13/0xc0
[<
ffffffff83c35086>] smp_apic_timer_interrupt+0x76/0xa0
[<
ffffffff83c3416c>] apic_timer_interrupt+0x8c/0xa0
<EOI>
[<
ffffffff83c3239c>] ? _raw_spin_unlock_irqrestore+0x2c/0x60
[<
ffffffff82c8185d>] snd_timer_start1+0xdd/0x670
[<
ffffffff82c87015>] snd_timer_continue+0x45/0x80
[<
ffffffff82c88100>] snd_timer_user_ioctl+0x1030/0x2830
[<
ffffffff8159f3a0>] ? __follow_pte.isra.49+0x430/0x430
[<
ffffffff82c870d0>] ? snd_timer_pause+0x80/0x80
[<
ffffffff815a26fa>] ? do_wp_page+0x3aa/0x1c90
[<
ffffffff815aa4f8>] ? handle_mm_fault+0xbc8/0x27f0
[<
ffffffff815a9930>] ? __pmd_alloc+0x370/0x370
[<
ffffffff82c870d0>] ? snd_timer_pause+0x80/0x80
[<
ffffffff816b0733>] do_vfs_ioctl+0x193/0x1050
[<
ffffffff816b05a0>] ? ioctl_preallocate+0x200/0x200
[<
ffffffff81002f2f>] ? syscall_trace_enter+0x3cf/0xdb0
[<
ffffffff815045ba>] ? __context_tracking_exit.part.4+0x9a/0x1e0
[<
ffffffff81002b60>] ? exit_to_usermode_loop+0x190/0x190
[<
ffffffff82001a97>] ? check_preemption_disabled+0x37/0x1e0
[<
ffffffff81d93889>] ? security_file_ioctl+0x89/0xb0
[<
ffffffff816b167f>] SyS_ioctl+0x8f/0xc0
[<
ffffffff816b15f0>] ? do_vfs_ioctl+0x1050/0x1050
[<
ffffffff81005524>] do_syscall_64+0x1c4/0x4e0
[<
ffffffff83c32b2a>] entry_SYSCALL64_slow_path+0x25/0x25
Code: e8 fc 42 7b fe 8b 0d 06 8a 50 03 49 0f af cf 48 85 c9 0f 88 7c 01 00 00 48 89 4d a8 e8 e0 42 7b fe 48 8b 45 c0 48 8b 4d a8 48 99 <48> f7 f9 49 01 c7 e8 cb 42 7b fe 48 8b 55 d0 48 b8 00 00 00 00
RIP [<
ffffffff82c8bd9a>] snd_hrtimer_callback+0x1da/0x3f0
RSP <
ffff88011aa87da8>
---[ end trace
6aa380f756a21074 ]---
The problem happens when you call ioctl(SNDRV_TIMER_IOCTL_CONTINUE) on a
completely new/unused timer -- it will have ->sticks == 0, which causes a
divide by 0 in snd_hrtimer_callback().
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Thu, 25 Aug 2016 15:56:09 +0000 (17:56 +0200)]
Merge tag 'asoc-fix-v4.8-rc4' of git://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.8
A clutch of fixes for v4.8. These are mainly driver specific, the most
notable ones being those for OMAP which fix a series of issues that
broke boot on some platforms there when deferred probe kicked in.
There's also one core fix for an issue when unbinding a card which for
some reason had managed to not manifest until recently.
Aaro Koskinen [Wed, 24 Aug 2016 17:57:47 +0000 (20:57 +0300)]
ALSA: snd-aoa: enable sound on PowerBook G4 12"
Enable sound on PowerBook G4 12".
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mark Brown [Wed, 24 Aug 2016 18:05:25 +0000 (19:05 +0100)]
Merge remote-tracking branches 'asoc/fix/max98371', 'asoc/fix/nau8825', 'asoc/fix/omap', 'asoc/fix/samsung', 'asoc/fix/simple' and 'asoc/fix/wm2000' into asoc-linus
Mark Brown [Wed, 24 Aug 2016 18:05:22 +0000 (19:05 +0100)]
Merge remote-tracking branches 'asoc/fix/atmel', 'asoc/fix/compress', 'asoc/fix/da7213' and 'asoc/fix/debugfs' into asoc-linus
Mark Brown [Wed, 24 Aug 2016 18:05:21 +0000 (19:05 +0100)]
Merge remote-tracking branch 'asoc/fix/rcar' into asoc-linus
Mark Brown [Wed, 24 Aug 2016 18:05:20 +0000 (19:05 +0100)]
Merge remote-tracking branch 'asoc/fix/intel' into asoc-linus
Mark Brown [Wed, 24 Aug 2016 18:05:18 +0000 (19:05 +0100)]
Merge remote-tracking branch 'asoc/fix/dapm' into asoc-linus
Mark Brown [Wed, 24 Aug 2016 18:05:17 +0000 (19:05 +0100)]
Merge remote-tracking branch 'asoc/fix/core' into asoc-linus
Takashi Sakamoto [Wed, 24 Aug 2016 12:42:43 +0000 (21:42 +0900)]
ALSA: bebob: unify configurations for some models produced by Yamaha/Terratec
The below models were developed with a cooperation by Yamaha and Terratec.
- Yamaha GO 44/Terratec PHASE 24 FW
- Yamaha GO 46/Terratec PHASE X24 FW
They have the same configurations, thus it's better to unify corresponding
codes.
This commit merges them to reduce the amount of maintained codes.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Wed, 24 Aug 2016 12:42:42 +0000 (21:42 +0900)]
ALSA: bebob: rename file with vendor-dependent code so that it's for Yamaha/Terratec
Once Yamaha and Terratec cooperated to develop some audio and music units
on IEEE 1394 bus. On these models, the same embedded board is used, and
similar configurations are also applied.
This commit renames file for Yamaha's configuration so that it's for both
of Yamaha and Terratec.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Anisse Astier [Wed, 24 Aug 2016 07:14:13 +0000 (09:14 +0200)]
ALSA: hda/realtek - fix headset mic detection for MSI MS-B120
MSI Cubi MS-B120 needs the same fixup as the Gigabyte BXBT-2807 for its
mic to work.
They both use a single 3-way jack for both mic and headset with an
ALC283 codec, with the same pins used.
Cc: Daniel Drake <drake@endlessm.com>
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Peter Ujfalusi [Tue, 23 Aug 2016 07:27:19 +0000 (10:27 +0300)]
ASoC: omap-mcpdm: Fix irq resource handling
Fixes:
ddd17531ad908 ("ASoC: omap-mcpdm: Clean up with devm_* function")
Managed irq request will not doing any good in ASoC probe level as it is
not going to free up the irq when the driver is unbound from the sound
card.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reported-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Wei Yongjun [Sun, 21 Aug 2016 15:37:16 +0000 (15:37 +0000)]
ASoC: max98371: Add terminate entry for i2c_device_id tables
Make sure i2c_device_id tables are NULL terminated.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Colin Ian King [Mon, 22 Aug 2016 11:50:02 +0000 (12:50 +0100)]
ALSA: hdspm: fix spelling mistake "Externel" -> "External"
Trivial fix to spelling mistake in dev_warn message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Markus Elfring [Sun, 21 Aug 2016 19:02:06 +0000 (21:02 +0200)]
ALSA: compress: Use memdup_user() rather than duplicating its implementation
Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Shawn Lin [Sun, 21 Aug 2016 02:17:36 +0000 (10:17 +0800)]
ALSA: usb-audio: rmove print for failure of kmalloc
kmalloc already print similar error once failing to alloc
enough memory, so let's remove this dump here.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Daniel Mack [Mon, 22 Aug 2016 06:53:38 +0000 (08:53 +0200)]
ALSA: usb: fine-tune Tenor error compensation value
Users of devices affected by the Tenor feedback data error report
buffer underruns, even with the +/- 0x1.0000 quirk applied.
Compensating the error with 0xf000 instead seems to reliably fix
that issue.
See
https://sourceforge.net/p/alsa/mailman/message/
35230259/
Reported-and-tested-by: Norman Nolte <norman.nolte@gmx.net>
Reported-and-tested-by: Thomas Gresens <T.Gresens@intershop.de>
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Daniel Mack [Mon, 22 Aug 2016 06:53:37 +0000 (08:53 +0200)]
ALSA: usb: use TEAC UD-H01 quirk for more devices
The quirk seems to be necessary not only for TEAC UD-H01 devices, but to
more that are based on the Tenor 8802TL chipset. Devices built by T+A
are affected too, and they apparently all use the same USB PID:PID.
Extend the quirky handling for that device as well, and rename the
quirks flag.
Reported-and-tested-by: Thomas Gresens <T.Gresens@intershop.de>
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Daniel Mack [Mon, 22 Aug 2016 06:53:36 +0000 (08:53 +0200)]
ALSA: usb: move udh01_fb_quirk setting to quirks.c
That's a quirk, after all, so move it where to all the other quirks
live.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Andrej Krutak [Thu, 18 Aug 2016 21:52:12 +0000 (23:52 +0200)]
ALSA: line6: Fix POD sysfs attributes segfault
The commit
02fc76f6a changed base of the sysfs attributes from device to card.
The "show" callbacks dereferenced wrong objects because of this.
Fixes:
02fc76f6a7db ('ALSA: line6: Create sysfs via snd_card_add_dev_attr()')
Cc: <stable@vger.kernel.org> # v4.0+
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Andrej Krutak <dev@andree.sk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Andrej Krutak [Thu, 18 Aug 2016 21:52:11 +0000 (23:52 +0200)]
ALSA: line6: Give up on the lock while URBs are released.
Done, because line6_stream_stop() locks and calls line6_unlink_audio_urbs(),
which in turn invokes audio_out_callback(), which tries to lock 2nd time.
Fixes:
=============================================
[ INFO: possible recursive locking detected ]
4.4.15+ #15 Not tainted
---------------------------------------------
mplayer/3591 is trying to acquire lock:
(&(&line6pcm->out.lock)->rlock){-.-...}, at: [<
bfa27655>] audio_out_callback+0x70/0x110 [snd_usb_line6]
but task is already holding lock:
(&(&line6pcm->out.lock)->rlock){-.-...}, at: [<
bfa26aad>] line6_stream_stop+0x24/0x5c [snd_usb_line6]
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&line6pcm->out.lock)->rlock);
lock(&(&line6pcm->out.lock)->rlock);
*** DEADLOCK ***
May be due to missing lock nesting notation
3 locks held by mplayer/3591:
#0: (snd_pcm_link_rwlock){.-.-..}, at: [<
bf8d49a7>] snd_pcm_stream_lock+0x1e/0x40 [snd_pcm]
#1: (&(&substream->self_group.lock)->rlock){-.-...}, at: [<
bf8d49af>] snd_pcm_stream_lock+0x26/0x40 [snd_pcm]
#2: (&(&line6pcm->out.lock)->rlock){-.-...}, at: [<
bfa26aad>] line6_stream_stop+0x24/0x5c [snd_usb_line6]
stack backtrace:
CPU: 0 PID: 3591 Comm: mplayer Not tainted 4.4.15+ #15
Hardware name: Generic AM33XX (Flattened Device Tree)
[<
c0015d85>] (unwind_backtrace) from [<
c001253d>] (show_stack+0x11/0x14)
[<
c001253d>] (show_stack) from [<
c02f1bdf>] (dump_stack+0x8b/0xac)
[<
c02f1bdf>] (dump_stack) from [<
c0076f43>] (__lock_acquire+0xc8b/0x1780)
[<
c0076f43>] (__lock_acquire) from [<
c007810d>] (lock_acquire+0x99/0x1c0)
[<
c007810d>] (lock_acquire) from [<
c06171e7>] (_raw_spin_lock_irqsave+0x3f/0x4c)
[<
c06171e7>] (_raw_spin_lock_irqsave) from [<
bfa27655>] (audio_out_callback+0x70/0x110 [snd_usb_line6])
[<
bfa27655>] (audio_out_callback [snd_usb_line6]) from [<
c04294db>] (__usb_hcd_giveback_urb+0x53/0xd0)
[<
c04294db>] (__usb_hcd_giveback_urb) from [<
c046388d>] (musb_giveback+0x3d/0x98)
[<
c046388d>] (musb_giveback) from [<
c04647f5>] (musb_urb_dequeue+0x6d/0x114)
[<
c04647f5>] (musb_urb_dequeue) from [<
c042ac11>] (usb_hcd_unlink_urb+0x39/0x98)
[<
c042ac11>] (usb_hcd_unlink_urb) from [<
bfa26a87>] (line6_unlink_audio_urbs+0x6a/0x6c [snd_usb_line6])
[<
bfa26a87>] (line6_unlink_audio_urbs [snd_usb_line6]) from [<
bfa26acb>] (line6_stream_stop+0x42/0x5c [snd_usb_line6])
[<
bfa26acb>] (line6_stream_stop [snd_usb_line6]) from [<
bfa26fe7>] (snd_line6_trigger+0xb6/0xf4 [snd_usb_line6])
[<
bfa26fe7>] (snd_line6_trigger [snd_usb_line6]) from [<
bf8d47b7>] (snd_pcm_do_stop+0x36/0x38 [snd_pcm])
[<
bf8d47b7>] (snd_pcm_do_stop [snd_pcm]) from [<
bf8d462f>] (snd_pcm_action_single+0x22/0x40 [snd_pcm])
[<
bf8d462f>] (snd_pcm_action_single [snd_pcm]) from [<
bf8d46f9>] (snd_pcm_action+0xac/0xb0 [snd_pcm])
[<
bf8d46f9>] (snd_pcm_action [snd_pcm]) from [<
bf8d4b61>] (snd_pcm_drop+0x38/0x64 [snd_pcm])
[<
bf8d4b61>] (snd_pcm_drop [snd_pcm]) from [<
bf8d6233>] (snd_pcm_common_ioctl1+0x7fe/0xbe8 [snd_pcm])
[<
bf8d6233>] (snd_pcm_common_ioctl1 [snd_pcm]) from [<
bf8d6779>] (snd_pcm_playback_ioctl1+0x15c/0x51c [snd_pcm])
[<
bf8d6779>] (snd_pcm_playback_ioctl1 [snd_pcm]) from [<
bf8d6b59>] (snd_pcm_playback_ioctl+0x20/0x28 [snd_pcm])
[<
bf8d6b59>] (snd_pcm_playback_ioctl [snd_pcm]) from [<
c016714b>] (do_vfs_ioctl+0x3af/0x5c8)
Fixes:
63e20df1e5b2 ('ALSA: line6: Reorganize PCM stream handling')
Cc: <stable@vger.kernel.org> # v4.0+
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Andrej Krutak <dev@andree.sk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Andrej Krutak [Thu, 18 Aug 2016 21:52:10 +0000 (23:52 +0200)]
ALSA: line6: Remove double line6_pcm_release() after failed acquire.
If there's an error, pcm is released in line6_pcm_acquire already.
Fixes:
247d95ee6dd2 ('ALSA: line6: Handle error from line6_pcm_acquire()')
Cc: <stable@vger.kernel.org> # v4.0+
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Andrej Krutak <dev@andree.sk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Sat, 13 Aug 2016 01:13:36 +0000 (10:13 +0900)]
ALSA: seq: obsolete change of address limit
Former commits change existent functions so that they don't handle data in
kernel space. Copying from/to userspace is done outside of the functions,
thus no need to change address limit of running task.
This commit obsoletes get_fs()/set_fs() and applies corresponding changes.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Sat, 13 Aug 2016 01:13:35 +0000 (10:13 +0900)]
ALSA: seq: change ioctl command operation to get data in kernel space
In previous commit, a new table for functions with data in kernel space
is added to replace current table.
This commit changes existent functions to fit the table. These functions
are added to the new table and removed from the old table.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Sat, 13 Aug 2016 01:13:34 +0000 (10:13 +0900)]
ALSA: seq: add an alternative way to handle ioctl requests
ALSA sequencer is designed with two types of clients; application and
kernel. Operations for each ioctl command should handle data in both of
user space and kernel space, while current implementation just allows them
to handle data in user space. Data in kernel space is handled with change
of address limit of running tasks.
This commit adds a new table to map ioctl commands to corresponding
functions. The functions get data in kernel space. Helper functions to
operate kernel and application clients seek entries from the table.
Especially, the helper function for application is responsible for coping
from user space to kernel space or vise versa.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Sat, 13 Aug 2016 01:13:33 +0000 (10:13 +0900)]
ALSA: seq: add documentation for snd_seq_kernel_client_ctl
This kernel API is used by kernel implementation. Currently, it's used for
kernel clients of ALSA sequencer, while it can be used for application
clients. The difference is just on address spaces of argument. In short,
this kernel API can be available for application client with data in kernel
space.
This commit adds a document about this.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Sun, 21 Aug 2016 23:14:10 +0000 (16:14 -0700)]
Linux 4.8-rc3
Linus Torvalds [Sun, 21 Aug 2016 21:28:24 +0000 (14:28 -0700)]
Merge branch 'parisc-4.8-2' of git://git./linux/kernel/git/deller/parisc-linux
Pull two parisc fixes from Helge Deller:
"The first patch ensures that the high-res cr16 clocksource (which was
added in kernel 4.7) gets choosen as default clocksource for parisc.
The second patch moves the #define of EREFUSED down inside errno.h and
thus unbreaks building the gccgo compiler"
* 'parisc-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix order of EREFUSED define in errno.h
parisc: Fix automatic selection of cr16 clocksource
Tony Luck [Sat, 20 Aug 2016 23:27:58 +0000 (16:27 -0700)]
EDAC, skx_edac: Add EDAC driver for Skylake
This is an entirely new driver instead of yet another set of patches
to sb_edac.c because:
1) Mapping from PCI devices to socket/memory controller is significantly
different. Skylake scatters devices on a socket across a number of
PCI buses.
2) There is an extra level of interleaving via the "mcroute" register
that would be a little messy to squeeze into the old driver.
3) Validation is getting too expensive. Changes to sb_edac need to
be checked against Sandy Bridge, Ivy Bridge, Haswell, Broadwell and
Knights Landing.
Acked-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Helge Deller [Sat, 20 Aug 2016 09:51:38 +0000 (11:51 +0200)]
parisc: Fix order of EREFUSED define in errno.h
When building gccgo in userspace, errno.h gets parsed and the go include file
sysinfo.go is generated.
Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED
is defined later on in errno.h, this leads to go complaining that EREFUSED
isn't defined yet.
Fix this trivial problem by moving the define of EREFUSED down after
ECONNREFUSED in errno.h (and clean up the indenting while touching this line).
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Helge Deller [Fri, 19 Aug 2016 20:39:02 +0000 (22:39 +0200)]
parisc: Fix automatic selection of cr16 clocksource
Commit
54b66800907 (parisc: Add native high-resolution sched_clock()
implementation) added support to use the CPU-internal cr16 counters as reliable
clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK.
Sadly the commit missed to remove the hack which prevented cr16 to become the
default clocksource even on SMP systems.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.7+
Linus Torvalds [Fri, 19 Aug 2016 19:47:01 +0000 (12:47 -0700)]
Make the hardened user-copy code depend on having a hardened allocator
The kernel test robot reported a usercopy failure in the new hardened
sanity checks, due to a page-crossing copy of the FPU state into the
task structure.
This happened because the kernel test robot was testing with SLOB, which
doesn't actually do the required book-keeping for slab allocations, and
as a result the hardening code didn't realize that the task struct
allocation was one single allocation - and the sanity checks fail.
Since SLOB doesn't even claim to support hardening (and you really
shouldn't use it), the straightforward solution is to just make the
usercopy hardening code depend on the allocator supporting it.
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 19 Aug 2016 19:10:06 +0000 (12:10 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"I2C has some pretty standard driver bugfixes and one minor cleanup"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: meson: Use complete() instead of complete_all()
i2c: brcmstb: Use complete() instead of complete_all()
i2c: bcm-kona: Use complete() instead of complete_all()
i2c: bcm-iproc: Use complete() instead of complete_all()
i2c: at91: fix support of the "alternative command" feature
i2c: ocores: add missed clk_disable_unprepare() on failure paths
i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer()
i2c: mux: demux-pinctrl: properly roll back when adding adapter fails
Linus Torvalds [Fri, 19 Aug 2016 16:32:48 +0000 (09:32 -0700)]
Merge tag 'dm-4.8-fixes-2' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a stable fix for DM round robin multipath path selector to disable
preemption before using this_cpu_ptr()
- a slight increase in DM crypt's mempool reserves to make swap ontop
of DM crypt more performant
- a few DM raid fixes to issues found while testing changes that were
merged in v4.8-rc1
* tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm raid: support raid0 with missing metadata devices
dm raid: enhance attempt_restore_of_faulty_devices() to support more devices
dm raid: fix restoring of failed devices regression
dm raid: fix frozen recovery regression
dm crypt: increase mempool reserve to better support swapping
dm round robin: do not use this_cpu_ptr() without having preemption disabled
Linus Torvalds [Fri, 19 Aug 2016 16:22:50 +0000 (09:22 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Six fairly small fixes. The ipr, mpt3sas and ses ones all trigger
oopses. The megaraid one fixes an attach failure on io mapped only
cards, the fcoe one is an obvious problem in the error path and the
aacraid one is a theoretical security issue (ability to trick the
kernel into a buffer overrun)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
ses: Fix racy cleanup of /sys in remove_dev()
mpt3sas: Fix resume on WarpDrive flash cards
ipr: Fix sync scsi scan
megaraid_sas: Fix probing cards without io port
aacraid: Check size values after double-fetch from user
fcoe: Use kfree_skb() instead of kfree()
Linus Torvalds [Fri, 19 Aug 2016 16:21:24 +0000 (09:21 -0700)]
Merge tag 'usb-4.8-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of USB fixes for reported issues for your tree.
The normal amount of gadget fixes, xhci fixes, new device ids, and a
few other minor things. All of them have been in linux-next for a
while, the full details are in the shortlog below"
* tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (43 commits)
xhci: don't dereference a xhci member after removing xhci
usb: xhci: Fix panic if disconnect
xhci: really enqueue zero length TRBs.
xhci: always handle "Command Ring Stopped" events
cdc-acm: fix wrong pipe type on rx interrupt xfers
usb: misc: usbtest: add fix for driver hang
usb: dwc3: gadget: stop processing on HWO set
usb: dwc3: don't set last bit for ISOC endpoints
usb: gadget: rndis: free response queue during REMOTE_NDIS_RESET_MSG
usb: udc: core: fix error handling
usb: gadget: fsl_qe_udc: off by one in setup_received_handle()
usb/gadget: fix gadgetfs aio support.
usb: gadget: composite: Fix return value in case of error
usb: gadget: uvc: Fix return value in case of error
usb: gadget: fix check in sync read from ep in gadgetfs
usb: misc: usbtest: usbtest_do_ioctl may return positive integer
usb: dwc3: fix missing platform_set_drvdata() in dwc3_of_simple_probe()
usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe()
usb: gadget: configfs: add mutex lock before unregister gadget
usb: gadget: u_ether: fix dereference after null check coverify warning
...
Linus Torvalds [Fri, 19 Aug 2016 16:06:41 +0000 (09:06 -0700)]
Merge tag 'xfs-iomap-for-linus-4.8-rc3' of git://git./linux/kernel/git/dgc/linux-xfs
Pull xfs and iomap fixes from Dave Chinner:
"Changes in this update:
Regression fixes for XFS changes introduce in 4.8-rc1:
- buffer IO accounting assert failure
- ENOSPC block accounting reservation issue
- DAX IO path page cache invalidation fix
- rmapbt on-disk block count in agf
- correct classification of rmap block type when updating AGFL.
- iomap support for attribute fork mapping
Regression fixes for iomap infrastructure in 4.8-rc1:
- fiemap: honor FIEMAP_FLAG_SYNC
- fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression
- make mark_page_accessed and pagefault_disable usage consistent with
other IO paths"
* tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: remove OWN_AG rmap when allocating a block from the AGFL
xfs: (re-)implement FIEMAP_FLAG_XATTR
xfs: simplify xfs_file_iomap_begin
iomap: mark ->iomap_end as optional
iomap: prepare iomap_fiemap for attribute mappings
iomap: fiemap should honor the FIEMAP_FLAG_SYNC flag
iomap: remove superflous pagefault_disable from iomap_write_actor
iomap: remove superflous mark_page_accessed from iomap_write_actor
xfs: store rmapbt block count in the AGF
xfs: don't invalidate whole file on DAX read/write
xfs: fix bogus space reservation in xfs_iomap_write_allocate
xfs: don't assert fail on non-async buffers on ioacct decrement
Linus Torvalds [Fri, 19 Aug 2016 15:52:17 +0000 (08:52 -0700)]
Merge tag 'hwmon-for-linus-v4.8-rc2' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix a bug in it87 driver and URLs in ftsteutates driver"
* tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ftsteutates) Correct ftp urls in driver documentation
hwmon: (it87) Features mask must be 32 bit wide
Peter Ujfalusi [Fri, 19 Aug 2016 06:34:24 +0000 (09:34 +0300)]
ASoC: omap-abe-twl6040: Correct dmic-codec device registration
The dmic-codec was registered within the platform_driver's probe function,
which can cause deferred probe to run in loops as reported and analyzed by
Russell King.
Use module_init/exit in the driver and handle the dmic-codec device
registration and removal at that level instead of the platform_driver
probe/remove.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reported-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Mark Brown [Thu, 18 Aug 2016 18:32:59 +0000 (19:32 +0100)]
ASoC: core: Clean up DAPM before the card debugfs
Both the card and DAPM cleanups recursively delete their debugfs
directories. Since the DAPM debugfs subdirectory for the card is
located within the card debugfs this means we end up trying to double
free the DAPM subdirectory. Reorder the cleanup to free the card
debugfs after we've cleaned up DAPM and it has deleted its own
subdirectory.
Reported-by: Russell King - ARM Linux <linux@armlinux.org.uk>
Tested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Linus Torvalds [Fri, 19 Aug 2016 02:38:18 +0000 (19:38 -0700)]
Merge tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux
Pull more drm fixes from Dave Airlie:
"Daniel pointed out I'd missed some i915 fixes, and I also found a
single etnaviv fix I missed.
So here they are"
* tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux:
drm/etnaviv: take GPU lock later in the submit process
drm/i915: Fix modeset handling during gpu reset, v5.
drm/i915: fix aliasing_ppgtt leak
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
drm/i915: Acquire audio powerwell for HD-Audio registers
drm/i915: Add missing rpm wakelock to GGTT pread
drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
drm/i915: Program iboost settings for HDMI/DVI on SKL
drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
drm/i915: Handle ENOSPC after failing to insert a mappable node
drm/i915: Flush GT idle status upon reset
Linus Torvalds [Fri, 19 Aug 2016 02:31:08 +0000 (19:31 -0700)]
Merge tag 'devicetree-fixes-for-4.8' of git://git./linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- a couple of DT node ref counting fixes
- fix __unflatten_device_tree for PPC PCI hotplug case
- rework marking irq controllers as OF_POPULATED in cases where real
driver is used.
- disable of_platform_default_populate_init on PPC. The change in
initcall order causes problems which need to be sorted out later.
* tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: fix reference counting in of_graph_get_endpoint_by_regs
of/platform: disable the of_platform_default_populate_init() for all the ppc boards
ARM: imx6: mark GPC node as not populated after irq init to probe pm domain driver
of/irq: Mark interrupt controllers as populated before initialisation
drivers/of: Validate device node in __unflatten_device_tree()
of: Delete an unnecessary check before the function call "of_node_put"
Linus Torvalds [Fri, 19 Aug 2016 01:54:40 +0000 (18:54 -0700)]
Merge tag '4.8-doc-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"Three small fixes for Sphinx-formatted documentation generation"
* tag '4.8-doc-fixes' of git://git.lwn.net/linux:
doc-rst: customize RTD theme, drop padding of inline literal
docs: kernel-documentation: remove some highlight directives
docs: Set the Sphinx default highlight language to "guess"
Dave Airlie [Thu, 18 Aug 2016 22:51:13 +0000 (08:51 +1000)]
Merge tag 'drm-intel-fixes-2016-08-15' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Collection of i915 fixes.
* tag 'drm-intel-fixes-2016-08-15' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Fix modeset handling during gpu reset, v5.
drm/i915: fix aliasing_ppgtt leak
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
drm/i915: Acquire audio powerwell for HD-Audio registers
drm/i915: Add missing rpm wakelock to GGTT pread
drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
drm/i915: Program iboost settings for HDMI/DVI on SKL
drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
drm/i915: Handle ENOSPC after failing to insert a mappable node
drm/i915: Flush GT idle status upon reset
Dave Airlie [Thu, 18 Aug 2016 22:50:42 +0000 (08:50 +1000)]
Merge branch 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux into drm-fixes
Single GPU recovery fix
* 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux:
drm/etnaviv: take GPU lock later in the submit process
Linus Torvalds [Thu, 18 Aug 2016 22:09:41 +0000 (15:09 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"An initrd microcode loading fix, and an SMP bootup topology setup fix
to resolve crashes on SGI/UV systems if the BIOS is configured in a
certain way"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/smp: Fix __max_logical_packages value setup
x86/microcode/AMD: Fix initrd loading with CONFIG_RANDOMIZE_MEMORY=y
Linus Torvalds [Thu, 18 Aug 2016 22:08:31 +0000 (15:08 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Three clocksource driver fixes"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/mips-gic-timer: Make gic_clocksource_of_init() return int
clocksource/drivers/kona: Fix get_counter() error handling
clocksource/drivers/time-armada-370-xp: Fix the clock reference
Linus Torvalds [Thu, 18 Aug 2016 22:07:21 +0000 (15:07 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Two cputime fixes - hopefully the last ones"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cputime: Resync steal time when guest & host lose sync
sched/cputime: Fix NO_HZ_FULL getrusage() monotonicity regression
Linus Torvalds [Thu, 18 Aug 2016 22:04:53 +0000 (15:04 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also start/stop filter related fixes, a perf
event read() fix, a fix uncovered by fuzzing, and an uprobes leak fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Check return value of the perf_event_read() IPI
perf/core: Enable mapping of the stop filters
perf/core: Update filters only on executable mmap
perf/core: Fix file name handling for start/stop filters
perf/core: Fix event_function_local()
uprobes: Fix the memcg accounting
perf intel-pt: Fix occasional decoding errors when tracing system-wide
tools: Sync kvm related header files for arm64 and s390
perf probe: Release resources on error when handling exit paths
perf probe: Check for dup and fdopen failures
perf symbols: Fix annotation of objects with debuginfo files
perf script: Don't disable use_callchain if input is pipe
perf script: Show proper message when failed list scripts
perf jitdump: Add the right header to get the major()/minor() definitions
perf ppc64le: Fix build failure when libelf is not present
perf tools mem: Fix -t store option for record command
perf intel-pt: Fix ip compression
Linus Torvalds [Thu, 18 Aug 2016 20:45:48 +0000 (13:45 -0700)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"Two lockless_dereference() related fixes"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/barriers: Suppress sparse warnings in lockless_dereference()
Revert "drm/fb-helper: Reduce READ_ONCE(master) to lockless_dereference"
Linus Torvalds [Thu, 18 Aug 2016 18:17:13 +0000 (11:17 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Avoid a literal load with the MMU off on the CPU resume path
(potential inconsistency between cache and RAM)
- Build error with CONFIG_ACPI=n fixed
- Compiler warning in the arch/arm64/mm/dump.c code fixed
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix shift warning in arch/arm64/mm/dump.c
arm64: kernel: avoid literal load of virtual address with MMU off
arm64: Fix NUMA build error when !CONFIG_ACPI
Linus Torvalds [Thu, 18 Aug 2016 18:13:20 +0000 (11:13 -0700)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"Only three fixes this time:
- Emil found an overflow problem with the memory layout sanity check.
- Ard Biesheuvel noticed that late-allocated page tables (for EFI)
weren't being properly constructed.
- Guenter Roeck reported a problem found on qemu caused by the recent
addr_limit changes"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: fix address limit restoration for undefined instructions
ARM: 8591/1: mm: use fully constructed struct pages for EFI pgd allocations
ARM: 8590/1: sanity_check_meminfo(): avoid overflow on vmalloc_limit
Linus Torvalds [Thu, 18 Aug 2016 18:09:43 +0000 (11:09 -0700)]
Merge tag 'pm-4.8-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"More hibernation-related material: one fix for a recent regression in
the core, one small cleanup of the x86-64 resume code and a
documentation update.
Specifics:
- Fix a hibernate core regression resulting from uncovering a latent
bug in its implementation of memory bitmaps by a recent commit
(James Morse).
- Use __pa() to compute a physical address in the x86-64 code
finalizing resume from hibernation (Rafael Wysocki).
- Update power management documentation related to system sleep
states to remove outdated information from it and to add a
description of a recently introduced hibernation debug feature to
it (Rafael Wysocki)"
* tag 'pm-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / hibernate: Fix rtree_next_node() to avoid walking off list ends
x86/power/64: Use __pa() for physical address computation
PM / sleep: Update some system sleep documentation
Linus Torvalds [Thu, 18 Aug 2016 17:58:50 +0000 (10:58 -0700)]
Merge tag 'drm-fixes-for-4.8-rc3' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Pretty quiet so far:
- a few amdgpu/radeon fixup for pcie pm changes
- a couple of amdgpu fixes
- some build fixes
- printk fix"
* tag 'drm-fixes-for-4.8-rc3' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: Change GART offset to 64-bit
drm/mediatek: add ARM_SMCCC dependency
drm/mediatek: add CONFIG_OF dependency
drm/mediatek: add COMMON_CLK dependency
drm/amdgpu: Fix memory trashing if UVD ring test fails
drm/amdgpu: fix vm init error path
drm/amdkfd: print doorbell offset as a hex value
Revert "drm/radeon: work around lack of upstream ACPI support for D3cold"
Revert "drm/amdgpu: work around lack of upstream ACPI support for D3cold"
Peter Ujfalusi [Thu, 18 Aug 2016 11:00:59 +0000 (14:00 +0300)]
ASoC: omap-mcpdm: Drop pdmclk clock handling
This reverts commit
65aca64d05b5eaa5ce15e18b458a8d338ddbd478.
The patches for twl6040 MFD and clk missed the merge window and
causing the McPDM driver to never probe since it is put back to
the deferred list because the missing drivers.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Johannes Berg [Thu, 11 Aug 2016 09:50:22 +0000 (11:50 +0200)]
locking/barriers: Suppress sparse warnings in lockless_dereference()
After Peter's commit:
331b6d8c7afc ("locking/barriers: Validate lockless_dereference() is used on a pointer type")
... we get a lot of sparse warnings (one for every rcu_dereference, and more)
since the expression here is assigning to the wrong address space.
Instead of validating that 'p' is a pointer this way, instead make
it fail compilation when it's not by using sizeof(*(p)). This will
not cause any sparse warnings (tested, likely since the address
space is irrelevant for sizeof), and will fail compilation when
'p' isn't a pointer type.
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
331b6d8c7afc ("locking/barriers: Validate lockless_dereference() is used on a pointer type")
Link: http://lkml.kernel.org/r/1470909022-687-2-git-send-email-johannes@sipsolutions.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Johannes Berg [Thu, 11 Aug 2016 09:50:21 +0000 (11:50 +0200)]
Revert "drm/fb-helper: Reduce READ_ONCE(master) to lockless_dereference"
This reverts commit:
fa7d81bb3c269 ("drm/fb-helper: Reduce READ_ONCE(master) to lockless_dereference")
As Peter explained:
[...] lockless_dereference() is _stronger_ than READ_ONCE(), not weaker.
[...]
Also, clue is in the name: 'dereference', you don't actually dereference
the pointer here, only load it.
My next patch breaks the compile without this revert, because it assumes
you want to deference and thus also need the struct type visible (which
it isn't here), so revert it.
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1470909022-687-1-git-send-email-johannes@sipsolutions.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Catalin Marinas [Fri, 5 Dec 2014 12:34:54 +0000 (12:34 +0000)]
arm64: Fix shift warning in arch/arm64/mm/dump.c
When building with 48-bit VAs and 16K page configuration, it's possible
to get the following warning when building the arm64 page table dumping
code:
arch/arm64/mm/dump.c: In function ‘walk_pud’:
arch/arm64/mm/dump.c:274:102: warning: right shift count >= width of type [-Wshift-count-overflow]
This is because pud_offset(pgd, 0) performs a shift to the right by 36
while the value 0 has the type 'int' by default, therefore 32-bit.
This patch modifies all the p*_offset() uses in arch/arm64/mm/dump.c to
use 0UL for the address argument.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Wanpeng Li [Wed, 17 Aug 2016 02:05:46 +0000 (10:05 +0800)]
sched/cputime: Resync steal time when guest & host lose sync
Commit:
57430218317e ("sched/cputime: Count actually elapsed irq & softirq time")
... fixed a bug but also triggered a regression:
On an i5 laptop, 4 pCPUs, 4vCPUs for one full dynticks guest, there are four
CPU hog processes(for loop) running in the guest, I hot-unplug the pCPUs
on host one by one until there is only one left, then observe CPU utilization
via 'top' in the guest, it shows:
100% st for cpu0(housekeeping)
75% st for other CPUs (nohz full mode)
However, w/o this commit it shows the correct 75% for all four CPUs.
When a guest is interrupted for a longer amount of time, missed clock ticks
are not redelivered later. Because of that, we should not limit the amount
of steal time accounted to the amount of time that the calling functions
think have passed.
However, the interval returned by account_other_time() is NOT rounded down
to the nearest jiffy, while the base interval in get_vtime_delta() it is
subtracted from is, so the max cputime limit is required to avoid underflow.
This patch fixes the regression by limiting the account_other_time() from
get_vtime_delta() to avoid underflow, and lets the other three call sites
(in account_other_time() and steal_account_process_time()) account however
much steal time the host told us elapsed.
Suggested-by: Rik van Riel <riel@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kvm@vger.kernel.org
Link: http://lkml.kernel.org/r/1471399546-4069-1-git-send-email-wanpeng.li@hotmail.com
[ Improved the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Peter Zijlstra [Mon, 15 Aug 2016 16:38:42 +0000 (18:38 +0200)]
sched/cputime: Fix NO_HZ_FULL getrusage() monotonicity regression
Mike reports:
Roughly 10% of the time, ltp testcase getrusage04 fails:
getrusage04 0 TINFO : Expected timers granularity is 4000 us
getrusage04 0 TINFO : Using 1 as multiply factor for max [us]time increment (1000+4000us)!
getrusage04 0 TINFO : utime: 0us; stime: 179us
getrusage04 0 TINFO : utime: 3751us; stime: 0us
getrusage04 1 TFAIL : getrusage04.c:133: stime increased > 5000us:
And tracked it down to the case where the task simply doesn't get
_any_ [us]time ticks.
Update the code to assume all rtime is utime when we lack information,
thus ensuring a task that elides the tick gets time accounted.
Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Tested-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Fredrik Markstrom <fredrik.markstrom@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Radim <rkrcmar@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: stable@vger.kernel.org # 4.3+
Fixes:
9d7fb0427648 ("sched/cputime: Guarantee stime + utime == rtime")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
David Carrillo-Cisneros [Wed, 17 Aug 2016 20:55:04 +0000 (13:55 -0700)]
perf/core: Check return value of the perf_event_read() IPI
The call to smp_call_function_single in perf_event_read() may fail if
an invalid or not online CPU index is passed. Warn user if such bug is
present and return error.
Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1471467307-61171-2-git-send-email-davidcc@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Mathieu Poirier [Mon, 18 Jul 2016 16:43:07 +0000 (10:43 -0600)]
perf/core: Enable mapping of the stop filters
At this time the perf_addr_filter_needs_mmap() function will _not_
return true on a user space 'stop' filter. But stop filters need
exactly the same kind of mapping that range and start filters get.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1468860187-318-4-git-send-email-mathieu.poirier@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Mathieu Poirier [Mon, 18 Jul 2016 16:43:06 +0000 (10:43 -0600)]
perf/core: Update filters only on executable mmap
Function perf_event_mmap() is called by the MM subsystem each time
part of a binary is loaded in memory. There can be several mapping
for a binary, many times unrelated to the code section.
Each time a section of a binary is mapped address filters are
updated, event when the map doesn't pertain to the code section.
The end result is that filters are configured based on the last map
event that was received rather than the last mapping of the code
segment.
For example if we have an executable 'main' that calls library
'libcstest.so.1.0', and that we want to collect traces on code
that is in that library. The perf cmd line for this scenario
would be:
perf record -e cs_etm// --filter 'filter 0x72c/0x40@/opt/lib/libcstest.so.1.0' --per-thread ./main
Resulting in binaries being mapped this way:
root@linaro-nano:~# cat /proc/1950/maps
00400000-
00401000 r-xp
00000000 08:02 33169 /home/linaro/main
00410000-
00411000 r--p
00000000 08:02 33169 /home/linaro/main
00411000-
00412000 rw-p
00001000 08:02 33169 /home/linaro/main
7fa2464000-
7fa2474000 rw-p
00000000 00:00 0
7fa2474000-
7fa25a4000 r-xp
00000000 08:02 543 /lib/aarch64-linux-gnu/libc-2.21.so
7fa25a4000-
7fa25b3000 ---p
00130000 08:02 543 /lib/aarch64-linux-gnu/libc-2.21.so
7fa25b3000-
7fa25b7000 r--p
0012f000 08:02 543 /lib/aarch64-linux-gnu/libc-2.21.so
7fa25b7000-
7fa25b9000 rw-p
00133000 08:02 543 /lib/aarch64-linux-gnu/libc-2.21.so
7fa25b9000-
7fa25bd000 rw-p
00000000 00:00 0
7fa25bd000-
7fa25be000 r-xp
00000000 08:02 38308 /opt/lib/libcstest.so.1.0
7fa25be000-
7fa25cd000 ---p
00001000 08:02 38308 /opt/lib/libcstest.so.1.0
7fa25cd000-
7fa25ce000 r--p
00000000 08:02 38308 /opt/lib/libcstest.so.1.0
7fa25ce000-
7fa25cf000 rw-p
00001000 08:02 38308 /opt/lib/libcstest.so.1.0
7fa25cf000-
7fa25eb000 r-xp
00000000 08:02 574 /lib/aarch64-linux-gnu/ld-2.21.so
7fa25ef000-
7fa25f2000 rw-p
00000000 00:00 0
7fa25f7000-
7fa25f9000 rw-p
00000000 00:00 0
7fa25f9000-
7fa25fa000 r--p
00000000 00:00 0 [vvar]
7fa25fa000-
7fa25fb000 r-xp
00000000 00:00 0 [vdso]
7fa25fb000-
7fa25fc000 r--p
0001c000 08:02 574 /lib/aarch64-linux-gnu/ld-2.21.so
7fa25fc000-
7fa25fe000 rw-p
0001d000 08:02 574 /lib/aarch64-linux-gnu/ld-2.21.so
7ff2ea8000-
7ff2ec9000 rw-p
00000000 00:00 0 [stack]
root@linaro-nano:~#
Before 'main()' can execute 'libcstest.so.1.0' has to be loaded in
memory. Once that has been done perf_event_mmap() has been called
4 times, with the last map starting at address 0x7fa25ce000 and
the address filter configured to start filtering when the
IP has passed over address 0x0x7fa25ce72c (0x7fa25ce000 + 0x72c).
But that is wrong since the code segment for library 'libcstest.so.1.0'
as been mapped at 0x7fa25bd000, resulting in traces not being
collected.
This patch corrects the situation by requesting that address
filters be updated only if the mapped event is for a code
segment.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1468860187-318-3-git-send-email-mathieu.poirier@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Mathieu Poirier [Mon, 18 Jul 2016 16:43:05 +0000 (10:43 -0600)]
perf/core: Fix file name handling for start/stop filters
Binary file names have to be supplied for both range and start/stop
filters but the current code only processes the filename if an
address range filter is specified. This code adds processing of
the filename for start/stop filters.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1468860187-318-2-git-send-email-mathieu.poirier@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Peter Zijlstra [Tue, 16 Aug 2016 11:33:26 +0000 (13:33 +0200)]
perf/core: Fix event_function_local()
Vincent reported triggering the WARN_ON_ONCE() in event_function_local().
While thinking through cases I noticed that by using event_function()
directly, we miss the inactive case usually handled by
event_function_call().
Therefore construct a blend of event_function_call() and
event_function() that handles the cases relevant to
event_function_local().
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # 4.5+
Fixes:
fae3fde65138 ("perf: Collapse and fix event_function_call() users")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Jiri Olsa [Mon, 15 Aug 2016 10:17:00 +0000 (12:17 +0200)]
x86/smp: Fix __max_logical_packages value setup
Frank reported kernel panic when he disabled several cores in BIOS
via following option:
Core Disable Bitmap(Hex) [0]
with number 0xFFE, which leaves 16 CPUs in system (out of 48).
The kernel panic below goes along with following messages:
smpboot: Max logical packages: 2^M
smpboot: APIC(0) Converting physical 0 to logical package 0^M
smpboot: APIC(20) Converting physical 1 to logical package 1^M
smpboot: APIC(40) Package 2 exceeds logical package map^M
smpboot: CPU 8 APICId 40 disabled^M
smpboot: APIC(60) Package 3 exceeds logical package map^M
smpboot: CPU 12 APICId 60 disabled^M
...
general protection fault: 0000 [#1] SMP^M
Modules linked in:^M
CPU: 15 PID: 1 Comm: swapper/0 Not tainted 4.7.0-rc5+ #1^M
Hardware name: SGI UV300/UV300, BIOS SGI UV 300 series BIOS 05/25/2016^M
task:
ffff8801673e0000 ti:
ffff8801673ac000 task.ti:
ffff8801673ac000^M
RIP: 0010:[<
ffffffff81014d54>] [<
ffffffff81014d54>] uncore_change_context+0xd4/0x180^M
...
[<
ffffffff810158ac>] uncore_event_init_cpu+0x6c/0x70^M
[<
ffffffff81d8c91c>] intel_uncore_init+0x1c2/0x2dd^M
[<
ffffffff81d8c75a>] ? uncore_cpu_setup+0x17/0x17^M
[<
ffffffff81002190>] do_one_initcall+0x50/0x190^M
[<
ffffffff810ab193>] ? parse_args+0x293/0x480^M
[<
ffffffff81d87365>] kernel_init_freeable+0x1a5/0x249^M
[<
ffffffff81d86a35>] ? set_debug_rodata+0x12/0x12^M
[<
ffffffff816dc19e>] kernel_init+0xe/0x110^M
[<
ffffffff816e93bf>] ret_from_fork+0x1f/0x40^M
[<
ffffffff816dc190>] ? rest_init+0x80/0x80^M
The reason for the panic is wrong value of __max_logical_packages,
which lets logical_package_map uninitialized and the uncore code
relying on this map being properly initialized (maybe we should
add some safety checks there as well).
The __max_logical_packages is computed as:
DIV_ROUND_UP(total_cpus, ncpus);
- ncpus being number of cores
With above BIOS setup we get total_cpus == 16 which set
__max_logical_packages to 2 (ncpus is 12).
Once topology_update_package_map processes CPU with logical
pkg over 2 we display above messages and fail to initialize
the physical_to_logical_pkg map, which makes the uncore code
crash.
The fix is to remove logical_package_map bitmap completely
and keep and update the logical_packages number instead.
After we enumerate all the present CPUs, we check if the
enumerated logical packages count is within its computed
maximum from BIOS data.
If it's not the case, we set this maximum to the new enumerated
value and freeze any new addition of logical packages.
The freeze is because lot of init code like uncore/rapl/cqm
depends on having maximum logical package value set to allocate
their data, so we can't change it later on.
Prarit Bhargava tested the patch and confirms that it solves
the problem:
From dmidecode:
Core Count: 24
Core Enabled: 24
Thread Count: 48
Orig kernel boot log:
[ 0.464981] smpboot: Max logical packages: 19
[ 0.469861] smpboot: APIC(0) Converting physical 0 to logical package 0
[ 0.477261] smpboot: APIC(40) Converting physical 1 to logical package 1
[ 0.484760] smpboot: APIC(80) Converting physical 2 to logical package 2
[ 0.492258] smpboot: APIC(c0) Converting physical 3 to logical package 3
1. nr_cpus=8, should stop enumerating in package 0:
[ 0.533664] smpboot: APIC(0) Converting physical 0 to logical package 0
[ 0.539596] smpboot: Max logical packages: 19
2. max_cpus=8, should still enumerate all packages:
[ 0.526494] smpboot: APIC(0) Converting physical 0 to logical package 0
[ 0.532428] smpboot: APIC(40) Converting physical 1 to logical package 1
[ 0.538456] smpboot: APIC(80) Converting physical 2 to logical package 2
[ 0.544486] smpboot: APIC(c0) Converting physical 3 to logical package 3
[ 0.550524] smpboot: Max logical packages: 19
3. nr_cpus=49 ( 2 socket + 1 core on 3rd socket), should stop enumerating in
package 2:
[ 0.521378] smpboot: APIC(0) Converting physical 0 to logical package 0
[ 0.527314] smpboot: APIC(40) Converting physical 1 to logical package 1
[ 0.533345] smpboot: APIC(80) Converting physical 2 to logical package 2
[ 0.539368] smpboot: Max logical packages: 19
4. maxcpus=49, should still enumerate all packages:
[ 0.525591] smpboot: APIC(0) Converting physical 0 to logical package 0
[ 0.531525] smpboot: APIC(40) Converting physical 1 to logical package 1
[ 0.537547] smpboot: APIC(80) Converting physical 2 to logical package 2
[ 0.543579] smpboot: APIC(c0) Converting physical 3 to logical package 3
[ 0.549624] smpboot: Max logical packages: 19
5. kdump (nr_cpus=1) works as well.
Reported-by: Frank Ramsay <framsay@redhat.com>
Tested-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20160815101700.GA30090@krava
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Borislav Petkov [Wed, 17 Aug 2016 11:33:14 +0000 (13:33 +0200)]
x86/microcode/AMD: Fix initrd loading with CONFIG_RANDOMIZE_MEMORY=y
Similar to:
efaad554b4ff ("x86/microcode/intel: Fix initrd loading with CONFIG_RANDOMIZE_MEMORY=y")
... fix microcode loading from the initrd on AMD by adding the
randomization offset to the microcode patch container within the initrd.
Reported-and-tested-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-tip-commits@vger.kernel.org
Link: http://lkml.kernel.org/r/20160817113314.GA19221@nazgul.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Oleg Nesterov [Wed, 17 Aug 2016 15:36:29 +0000 (17:36 +0200)]
uprobes: Fix the memcg accounting
__replace_page() wronlgy calls mem_cgroup_cancel_charge() in "success" path,
it should only do this if page_check_address() fails.
This means that every enable/disable leads to unbalanced mem_cgroup_uncharge()
from put_page(old_page), it is trivial to underflow the page_counter->count
and trigger OOM.
Reported-and-tested-by: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: stable@vger.kernel.org # 3.17+
Fixes:
00501b531c47 ("mm: memcontrol: rewrite charge API")
Link: http://lkml.kernel.org/r/20160817153629.GB29724@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Dave Airlie [Thu, 18 Aug 2016 02:51:27 +0000 (12:51 +1000)]
Merge branch 'drm-fixes-4.8' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Single 64-bit gart size fix.
* 'drm-fixes-4.8' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: Change GART offset to 64-bit
Rafael J. Wysocki [Thu, 18 Aug 2016 01:27:08 +0000 (03:27 +0200)]
Merge branch 'pm-sleep'
* pm-sleep:
PM / hibernate: Fix rtree_next_node() to avoid walking off list ends
x86/power/64: Use __pa() for physical address computation
PM / sleep: Update some system sleep documentation
Linus Torvalds [Thu, 18 Aug 2016 00:26:58 +0000 (17:26 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Buffers powersave frame test is reversed in cfg80211, fix from Felix
Fietkau.
2) Remove bogus WARN_ON in openvswitch, from Jarno Rajahalme.
3) Fix some tg3 ethtool logic bugs, and one that would cause no
interrupts to be generated when rx-coalescing is set to 0. From
Satish Baddipadige and Siva Reddy Kallam.
4) QLCNIC mailbox corruption and napi budget handling fix from Manish
Chopra.
5) Fix fib_trie logic when walking the trie during /proc/net/route
output than can access a stale node pointer. From David Forster.
6) Several sctp_diag fixes from Phil Sutter.
7) PAUSE frame handling fixes in mlxsw driver from Ido Schimmel.
8) Checksum fixup fixes in bpf from Daniel Borkmann.
9) Memork leaks in nfnetlink, from Liping Zhang.
10) Use after free in rxrpc, from David Howells.
11) Use after free in new skb_array code of macvtap driver, from Jason
Wang.
12) Calipso resource leak, from Colin Ian King.
13) mediatek bug fixes (missing stats sync init, etc.) from Sean Wang.
14) Fix bpf non-linear packet write helpers, from Daniel Borkmann.
15) Fix lockdep splats in macsec, from Sabrina Dubroca.
16) hv_netvsc bug fixes from Vitaly Kuznetsov, mostly to do with VF
handling.
17) Various tc-action bug fixes, from CONG Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
net_sched: allow flushing tc police actions
net_sched: unify the init logic for act_police
net_sched: convert tcf_exts from list to pointer array
net_sched: move tc offload macros to pkt_cls.h
net_sched: fix a typo in tc_for_each_action()
net_sched: remove an unnecessary list_del()
net_sched: remove the leftover cleanup_a()
mlxsw: spectrum: Allow packets to be trapped from any PG
mlxsw: spectrum: Unmap 802.1Q FID before destroying it
mlxsw: spectrum: Add missing rollbacks in error path
mlxsw: reg: Fix missing op field fill-up
mlxsw: spectrum: Trap loop-backed packets
mlxsw: spectrum: Add missing packet traps
mlxsw: spectrum: Mark port as active before registering it
mlxsw: spectrum: Create PVID vPort before registering netdevice
mlxsw: spectrum: Remove redundant errors from the code
mlxsw: spectrum: Don't return upon error in removal path
i40e: check for and deal with non-contiguous TCs
ixgbe: Re-enable ability to toggle VLAN filtering
ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths
...
David S. Miller [Wed, 17 Aug 2016 23:27:58 +0000 (19:27 -0400)]
Merge branch 'tc_action-fixes'
Cong Wang says:
====================
net_sched: tc action fixes and updates
This patchset fixes a few regressions caused by the previous
code refactor and more. Thanks to Jamal for catching them!
Note, patch 3/7 and 4/7 are not strictly necessary for this patchset,
I just want to carry them together.
---
v4: adjust an indention for Jamal
add two more patches
v3: avoid list for fast path, suggested by Jamal
v2: replace flex_array with regular dynamic array
keep tcf_action_stats_update() in act_api.h
fix macro typos found by Amir
====================
Signed-off-by: David S. Miller <davem@davemloft.net>