OSDN Git Service
Linus Torvalds [Fri, 29 May 2020 19:32:46 +0000 (12:32 -0700)]
Merge tag 'drm-fixes-2020-05-29-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"A couple of amdgpu fixes and minor ingenic fixes:
amdgpu:
- display atomic test fix
- Fix soft hang in display vupdate code
ingenic:
- fix pointer cast
- fix crtc atomic check callback"
* tag 'drm-fixes-2020-05-29-1' of git://anongit.freedesktop.org/drm/drm:
drm/amd/display: Fix potential integer wraparound resulting in a hang
drm/amd/display: drop cursor position check in atomic test
gpu/drm: Ingenic: Fix opaque pointer casted to wrong type
gpu/drm: ingenic: Fix bogus crtc_atomic_check callback
Dave Airlie [Fri, 29 May 2020 02:11:07 +0000 (12:11 +1000)]
Merge tag 'drm-misc-fixes-2020-05-28' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Two ingenic fixes, one for a wrong cast, the other for a typo in a
comparison
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200528110944.hanv4qgc6w7whnj3@gilmour.lan
Linus Torvalds [Thu, 28 May 2020 20:04:25 +0000 (13:04 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"5 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
include/asm-generic/topology.h: guard cpumask_of_node() macro argument
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
mm: remove VM_BUG_ON(PageSlab()) from page_mapcount()
mm,thp: stop leaking unreleased file pages
mm/z3fold: silence kmemleak false positives of slots
Linus Torvalds [Thu, 28 May 2020 19:41:11 +0000 (12:41 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Just a few random driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics - add a second working PNP_ID for Lenovo T470s
Input: applespi - replace zero-length array with flexible-array
Input: axp20x-pek - always register interrupt handlers
Input: lm8333 - update contact email
Input: synaptics-rmi4 - fix error return code in rmi_driver_probe()
Input: synaptics-rmi4 - really fix attn_data use-after-free
Input: i8042 - add ThinkPad S230u to i8042 reset list
Revert "Input: i8042 - add ThinkPad S230u to i8042 nomux list"
Input: dlink-dir685-touchkeys - fix a typo in driver name
Input: xpad - add custom init packet for Xbox One S controllers
Input: evdev - call input_flush_device() on release(), not flush()
Input: i8042 - add ThinkPad S230u to i8042 nomux list
Input: usbtouchscreen - add support for BonXeon TP
Input: cros_ec_keyb - use cros_ec_cmd_xfer_status helper
Input: mms114 - fix handling of mms345l
Input: elants_i2c - support palm detection
Linus Torvalds [Thu, 28 May 2020 19:32:56 +0000 (12:32 -0700)]
Merge tag 'csky-for-linus-5.7-rc8' of git://github.com/c-sky/csky-linux
Pull csky fixes from Guo Ren:
"Another four fixes for csky:
- fix req_syscall debug
- fix abiv2 syscall_trace
- fix preempt enable
- clean up regs usage in entry.S"
* tag 'csky-for-linus-5.7-rc8' of git://github.com/c-sky/csky-linux:
csky: Fixup CONFIG_DEBUG_RSEQ
csky: Coding convention in entry.S
csky: Fixup abiv2 syscall_trace break a4 & a5
csky: Fixup CONFIG_PREEMPT panic
Arnd Bergmann [Thu, 28 May 2020 05:20:55 +0000 (22:20 -0700)]
include/asm-generic/topology.h: guard cpumask_of_node() macro argument
drivers/hwmon/amd_energy.c:195:15: error: invalid operands to binary expression ('void' and 'int')
(channel - data->nr_cpus));
~~~~~~~~~^~~~~~~~~~~~~~~~~
include/asm-generic/topology.h:51:42: note: expanded from macro 'cpumask_of_node'
#define cpumask_of_node(node) ((void)node, cpu_online_mask)
^~~~
include/linux/cpumask.h:618:72: note: expanded from macro 'cpumask_first_and'
#define cpumask_first_and(src1p, src2p) cpumask_next_and(-1, (src1p), (src2p))
^~~~~
Fixes:
f0b848ce6fe9 ("cpumask: Introduce cpumask_of_{node,pcibus} to replace {node,pcibus}_to_cpumask")
Fixes:
8abee9566b7e ("hwmon: Add amd_energy driver to report energy counters")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: http://lkml.kernel.org/r/20200527134623.930247-1-arnd@arndb.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander Potapenko [Thu, 28 May 2020 05:20:52 +0000 (22:20 -0700)]
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
KMSAN reported uninitialized data being written to disk when dumping
core. As a result, several kilobytes of kmalloc memory may be written
to the core file and then read by a non-privileged user.
Reported-by: sam <sunhaoyl@outlook.com>
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200419100848.63472-1-glider@google.com
Link: https://github.com/google/kmsan/issues/76
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Konstantin Khlebnikov [Thu, 28 May 2020 05:20:47 +0000 (22:20 -0700)]
mm: remove VM_BUG_ON(PageSlab()) from page_mapcount()
Replace superfluous VM_BUG_ON() with comment about correct usage.
Technically reverts commit
1d148e218a0d ("mm: add VM_BUG_ON_PAGE() to
page_mapcount()"), but context lines have changed.
Function isolate_migratepages_block() runs some checks out of lru_lock
when choose pages for migration. After checking PageLRU() it checks
extra page references by comparing page_count() and page_mapcount().
Between these two checks page could be removed from lru, freed and taken
by slab.
As a result this race triggers VM_BUG_ON(PageSlab()) in page_mapcount().
Race window is tiny. For certain workload this happens around once a
year.
page:
ffffea0105ca9380 count:1 mapcount:0 mapping:
ffff88ff7712c180 index:0x0 compound_mapcount: 0
flags: 0x500000000008100(slab|head)
raw:
0500000000008100 dead000000000100 dead000000000200 ffff88ff7712c180
raw:
0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(PageSlab(page))
------------[ cut here ]------------
kernel BUG at ./include/linux/mm.h:628!
invalid opcode: 0000 [#1] SMP NOPTI
CPU: 77 PID: 504 Comm: kcompactd1 Tainted: G W 4.19.109-27 #1
Hardware name: Yandex T175-N41-Y3N/MY81-EX0-Y3N, BIOS R05 06/20/2019
RIP: 0010:isolate_migratepages_block+0x986/0x9b0
The code in isolate_migratepages_block() was added in commit
119d6d59dcc0 ("mm, compaction: avoid isolating pinned pages") before
adding VM_BUG_ON into page_mapcount().
This race has been predicted in 2015 by Vlastimil Babka (see link
below).
[akpm@linux-foundation.org: comment tweaks, per Hugh]
Fixes:
1d148e218a0d ("mm: add VM_BUG_ON_PAGE() to page_mapcount()")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/159032779896.957378.7852761411265662220.stgit@buzz
Link: https://lore.kernel.org/lkml/557710E1.6060103@suse.cz/
Link: https://lore.kernel.org/linux-mm/158937872515.474360.5066096871639561424.stgit@buzz/T/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Thu, 28 May 2020 05:20:43 +0000 (22:20 -0700)]
mm,thp: stop leaking unreleased file pages
When collapse_file() calls try_to_release_page(), it has already isolated
the page: so if releasing buffers happens to fail (as it sometimes does),
remember to putback_lru_page(): otherwise that page is left unreclaimable
and unfreeable, and the file extent uncollapsible.
Fixes:
99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: <stable@vger.kernel.org> [5.4+]
Link: http://lkml.kernel.org/r/alpine.LSU.2.11.2005231837500.1766@eggly.anvils
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Qian Cai [Thu, 28 May 2020 05:20:40 +0000 (22:20 -0700)]
mm/z3fold: silence kmemleak false positives of slots
Kmemleak reported many leaks while under memory pressue in,
slots = alloc_slots(pool, gfp);
which is referenced by "zhdr" in init_z3fold_page(),
zhdr->slots = slots;
However, "zhdr" could be gone without freeing slots as the later will be
freed separately when the last "handle" off of "handles" array is freed.
It will be within "slots" which is always aligned.
unreferenced object 0xc000000fdadc1040 (size 104):
comm "oom04", pid 140476, jiffies
4295359280 (age 3454.970s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
z3fold_zpool_malloc+0x7b0/0xe10
alloc_slots at mm/z3fold.c:214
(inlined by) init_z3fold_page at mm/z3fold.c:412
(inlined by) z3fold_alloc at mm/z3fold.c:1161
(inlined by) z3fold_zpool_malloc at mm/z3fold.c:1735
zpool_malloc+0x34/0x50
zswap_frontswap_store+0x60c/0xda0
zswap_frontswap_store at mm/zswap.c:1093
__frontswap_store+0x128/0x330
swap_writepage+0x58/0x110
pageout+0x16c/0xa40
shrink_page_list+0x1ac8/0x25c0
shrink_inactive_list+0x270/0x730
shrink_lruvec+0x444/0xf30
shrink_node+0x2a4/0x9c0
do_try_to_free_pages+0x158/0x640
try_to_free_pages+0x1bc/0x5f0
__alloc_pages_slowpath.constprop.60+0x4dc/0x15a0
__alloc_pages_nodemask+0x520/0x650
alloc_pages_vma+0xc0/0x420
handle_mm_fault+0x1174/0x1bf0
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vitaly Wool <vitaly.wool@konsulko.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: http://lkml.kernel.org/r/20200522220052.2225-1-cai@lca.pw
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Airlie [Thu, 28 May 2020 05:38:42 +0000 (15:38 +1000)]
Merge tag 'amd-drm-fixes-5.7-2020-05-27' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.7-2020-05-27:
amdgpu:
- Display atomic test fix
- Fix soft hang in display vupdate code
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200527222700.4378-1-alexander.deucher@amd.com
Guo Ren [Tue, 26 May 2020 06:34:50 +0000 (06:34 +0000)]
csky: Fixup CONFIG_DEBUG_RSEQ
Put the rseq_syscall check point at the prologue of the syscall
will break the a0 ... a7. This will casue system call bug when
DEBUG_RSEQ is enabled.
So move it to the epilogue of syscall, but before syscall_trace.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Guo Ren [Sun, 24 May 2020 12:14:11 +0000 (12:14 +0000)]
csky: Coding convention in entry.S
There is no fixup or feature in the patch, we only cleanup with:
- Remove unnecessary reg used (r11, r12), just use r9 & r10 &
syscallid regs as temp useage.
- Add _TIF_SYSCALL_WORK and _TIF_WORK_MASK to gather macros.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Guo Ren [Sun, 24 May 2020 10:44:38 +0000 (10:44 +0000)]
csky: Fixup abiv2 syscall_trace break a4 & a5
Current implementation could destory a4 & a5 when strace, so we need to get them
from pt_regs by SAVE_ALL.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Guo Ren [Sun, 24 May 2020 08:03:07 +0000 (08:03 +0000)]
csky: Fixup CONFIG_PREEMPT panic
log:
[ 0.
13373200] Calibrating delay loop...
[ 0.
14077600] ------------[ cut here ]------------
[ 0.
14116700] WARNING: CPU: 0 PID: 0 at kernel/sched/core.c:3790 preempt_count_add+0xc8/0x11c
[ 0.
14348000] DEBUG_LOCKS_WARN_ON((preempt_count() < 0))Modules linked in:
[ 0.
14395100] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0 #7
[ 0.
14410800]
[ 0.
14427400] Call Trace:
[ 0.
14450700] [<
807cd226>] dump_stack+0x8a/0xe4
[ 0.
14473500] [<
80072792>] __warn+0x10e/0x15c
[ 0.
14495900] [<
80072852>] warn_slowpath_fmt+0x72/0xc0
[ 0.
14518600] [<
800a5240>] preempt_count_add+0xc8/0x11c
[ 0.
14544900] [<
807ef918>] _raw_spin_lock+0x28/0x68
[ 0.
14572600] [<
800e0eb8>] vprintk_emit+0x84/0x2d8
[ 0.
14599000] [<
800e113a>] vprintk_default+0x2e/0x44
[ 0.
14625100] [<
800e2042>] vprintk_func+0x12a/0x1d0
[ 0.
14651300] [<
800e1804>] printk+0x30/0x48
[ 0.
14677600] [<
80008052>] lockdep_init+0x12/0xb0
[ 0.
14703800] [<
80002080>] start_kernel+0x558/0x7f8
[ 0.
14730000] [<
800052bc>] csky_start+0x58/0x94
[ 0.
14756600] irq event stamp: 34
[ 0.
14775100] hardirqs last enabled at (33): [<
80067370>] ret_from_exception+0x2c/0x72
[ 0.
14793700] hardirqs last disabled at (34): [<
800e0eae>] vprintk_emit+0x7a/0x2d8
[ 0.
14812300] softirqs last enabled at (32): [<
800655b0>] __do_softirq+0x578/0x6d8
[ 0.
14830800] softirqs last disabled at (25): [<
8007b3b8>] irq_exit+0xec/0x128
The preempt_count of reg could be destroyed after csky_do_IRQ without reload
from memory.
After reference to other architectures (arm64, riscv), we move preempt entry
into ret_from_exception and disable irq at the beginning of
ret_from_exception instead of RESTORE_ALL.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Reported-by: Lu Baoquan <lu.baoquan@intellif.com>
Aric Cyr [Tue, 12 May 2020 15:48:48 +0000 (11:48 -0400)]
drm/amd/display: Fix potential integer wraparound resulting in a hang
[Why]
If VUPDATE_END is before VUPDATE_START the delay calculated can become
very large, causing a soft hang.
[How]
Take the absolute value of the difference between START and END.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Simon Ser [Sat, 23 May 2020 11:53:41 +0000 (11:53 +0000)]
drm/amd/display: drop cursor position check in atomic test
get_cursor_position already handles the case where the cursor has
negative off-screen coordinates by not setting
dc_cursor_position.enabled.
Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes:
626bf90fe03f ("drm/amd/display: add basic atomic check for cursor plane")
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Linus Torvalds [Wed, 27 May 2020 18:03:24 +0000 (11:03 -0700)]
Merge tag 'fsnotify_for_v5.7-rc8' of git://git./linux/kernel/git/jack/linux-fs
Pull fanotify FAN_DIR_MODIFY disabling from Jan Kara:
"A single patch that disables FAN_DIR_MODIFY support that was merged in
this merge window.
When discussing further functionality we realized it may be more
logical to guard it with a feature flag or to call things slightly
differently (or maybe not) so let's not set the API in stone for now."
* tag 'fsnotify_for_v5.7-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: turn off support for FAN_DIR_MODIFY
Linus Torvalds [Wed, 27 May 2020 17:58:19 +0000 (10:58 -0700)]
Merge branch 'for-5.7-fixes' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
- Reverted stricter synchronization for cgroup recursive stats which
was prepping it for event counter usage which never got merged. The
change was causing performation regressions in some cases.
- Restore bpf-based device-cgroup operation even when cgroup1 device
cgroup is disabled.
- An out-param init fix.
* 'for-5.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
device_cgroup: Cleanup cgroup eBPF device filter code
xattr: fix uninitialized out-param
Revert "cgroup: Add memory barriers to plug cgroup_rstat_updated() race window"
Amir Goldstein [Wed, 27 May 2020 12:54:55 +0000 (15:54 +0300)]
fanotify: turn off support for FAN_DIR_MODIFY
FAN_DIR_MODIFY has been enabled by commit
44d705b0370b ("fanotify:
report name info for FAN_DIR_MODIFY event") in 5.7-rc1. Now we are
planning further extensions to the fanotify API and during that we
realized that FAN_DIR_MODIFY may behave slightly differently to be more
consistent with extensions we plan. So until we finalize these
extensions, let's not bind our hands with exposing FAN_DIR_MODIFY to
userland.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Linus Torvalds [Wed, 27 May 2020 16:53:25 +0000 (09:53 -0700)]
Merge branch 'exec-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull execve fix from Eric Biederman:
"While working on my exec cleanups I found a bug in exec that winds up
miscomputing the ambient credentials during exec. Andy appears to have
to been confused as to why credentials are computed for both the
script and the interpreter
From the original patch description:
[3] Linux very confusingly processes both the script and the
interpreter if applicable, for reasons that elude me. The results
from thinking about a script's file capabilities and/or setuid
bits are mostly discarded.
The only value in struct cred that gets changed in cap_bprm_set_creds
that I could find that might persist between the script and the
interpreter was cap_ambient. Which is fixed with this trivial change"
* 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
exec: Always set cap_ambient in cap_bprm_set_creds
Dennis Kadioglu [Wed, 27 May 2020 06:03:13 +0000 (23:03 -0700)]
Input: synaptics - add a second working PNP_ID for Lenovo T470s
The Lenovo Thinkpad T470s I own has a different touchpad with "LEN007a"
instead of the already included PNP ID "LEN006c". However, my touchpad
seems to work well without any problems using RMI. So this patch adds the
other PNP ID.
Signed-off-by: Dennis Kadioglu <denk@eclipso.email>
Link: https://lore.kernel.org/r/ff770543cd53ae818363c0fe86477965@mail.eclipso.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Eric W. Biederman [Mon, 25 May 2020 17:56:15 +0000 (12:56 -0500)]
exec: Always set cap_ambient in cap_bprm_set_creds
An invariant of cap_bprm_set_creds is that every field in the new cred
structure that cap_bprm_set_creds might set, needs to be set every
time to ensure the fields does not get a stale value.
The field cap_ambient is not set every time cap_bprm_set_creds is
called, which means that if there is a suid or sgid script with an
interpreter that has neither the suid nor the sgid bits set the
interpreter should be able to accept ambient credentials.
Unfortuantely because cap_ambient is not reset to it's original value
the interpreter can not accept ambient credentials.
Given that the ambient capability set is expected to be controlled by
the caller, I don't think this is particularly serious. But it is
definitely worth fixing so the code works correctly.
I have tested to verify my reading of the code is correct and the
interpreter of a sgid can receive ambient capabilities with this
change and cannot receive ambient capabilities without this change.
Cc: stable@vger.kernel.org
Cc: Andy Lutomirski <luto@kernel.org>
Fixes:
58319057b784 ("capabilities: ambient capabilities")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Linus Torvalds [Tue, 26 May 2020 00:11:39 +0000 (17:11 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- correct value of decompressor tag size in header
- fix DACR value when we have nested exceptions
- fix a missing newline on a kernel message
- fix mask for ptrace thumb breakpoint hook
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
ARM: 8973/1: Add missing newline terminator to kernel message
ARM: uaccess: fix DACR mismatch with nested exceptions
ARM: uaccess: integrate uaccess_save and uaccess_restore
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
ARM: 8970/1: decompressor: increase tag size
Linus Torvalds [Sun, 24 May 2020 22:32:54 +0000 (15:32 -0700)]
Linux 5.7-rc7
Linus Torvalds [Sun, 24 May 2020 17:24:10 +0000 (10:24 -0700)]
Merge tag 'efi-urgent-2020-05-24' of git://git./linux/kernel/git/tip/tip
Pull EFI fixes from Thomas Gleixner:
"A set of EFI fixes:
- Don't return a garbage screen info when EFI framebuffer is not
available
- Make the early EFI console work properly with wider fonts instead
of drawing garbage
- Prevent a memory buffer leak in allocate_e820()
- Print the firmware error record properly so it can be decoded by
users
- Fix a symbol clash in the host tool build which only happens with
newer compilers.
- Add a missing check for the event log version of TPM which caused
boot failures on several Dell systems due to an attempt to decode
SHA-1 format with the crypto agile algorithm"
* tag 'efi-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tpm: check event log version before reading final events
efi: Pull up arch-specific prototype efi_systab_show_arch()
x86/boot: Mark global variables as static
efi: cper: Add support for printing Firmware Error Record Reference
efi/libstub/x86: Avoid EFI map buffer alloc in allocate_e820()
efi/earlycon: Fix early printk for wider fonts
efi/libstub: Avoid returning uninitialized data from setup_graphics()
Linus Torvalds [Sun, 24 May 2020 17:21:02 +0000 (10:21 -0700)]
Merge tag 'x86-urgent-2020-05-24' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two fixes for x86:
- Unbreak stack dumps for inactive tasks by interpreting the special
first frame left by __switch_to_asm() correctly.
The recent change not to skip the first frame so ORC and frame
unwinder behave in the same way caused all entries to be
unreliable, i.e. prepended with '?'.
- Use cpumask_available() instead of an implicit NULL check of a
cpumask_var_t in mmio trace to prevent a Clang build warning"
* tag 'x86-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/unwind/orc: Fix unwind_get_return_address_ptr() for inactive tasks
x86/mmiotrace: Use cpumask_available() for cpumask_var_t variables
Linus Torvalds [Sun, 24 May 2020 17:14:58 +0000 (10:14 -0700)]
Merge tag 'sched-urgent-2020-05-24' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"A set of fixes for the scheduler:
- Fix handling of throttled parents in enqueue_task_fair() completely.
The recent fix overlooked a corner case where the first iteration
terminates due to an entity already being on the runqueue which
makes the list management incomplete and later triggers the
assertion which checks for completeness.
- Fix a similar problem in unthrottle_cfs_rq().
- Show the correct uclamp values in procfs which prints the effective
value twice instead of requested and effective"
* tag 'sched-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix unthrottle_cfs_rq() for leaf_cfs_rq list
sched/debug: Fix requested task uclamp values shown in procfs
sched/fair: Fix enqueue_task_fair() warning some more
Linus Torvalds [Sun, 24 May 2020 00:16:18 +0000 (17:16 -0700)]
Merge git://git./linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Fix RCU warnings in ipv6 multicast router code, from Madhuparna
Bhowmik.
2) Nexthop attributes aren't being checked properly because of
mis-initialized iterator, from David Ahern.
3) Revert iop_idents_reserve() change as it caused performance
regressions and was just working around what is really a UBSAN bug
in the compiler. From Yuqi Jin.
4) Read MAC address properly from ROM in bmac driver (double iteration
proceeds past end of address array), from Jeremy Kerr.
5) Add Microsoft Surface device IDs to r8152, from Marc Payne.
6) Prevent reference to freed SKB in __netif_receive_skb_core(), from
Boris Sukholitko.
7) Fix ACK discard behavior in rxrpc, from David Howells.
8) Preserve flow hash across packet scrubbing in wireguard, from Jason
A. Donenfeld.
9) Cap option length properly for SO_BINDTODEVICE in AX25, from Eric
Dumazet.
10) Fix encryption error checking in kTLS code, from Vadim Fedorenko.
11) Missing BPF prog ref release in flow dissector, from Jakub Sitnicki.
12) dst_cache must be used with BH disabled in tipc, from Eric Dumazet.
13) Fix use after free in mlxsw driver, from Jiri Pirko.
14) Order kTLS key destruction properly in mlx5 driver, from Tariq
Toukan.
15) Check devm_platform_ioremap_resource() return value properly in
several drivers, from Tiezhu Yang.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (71 commits)
net: smsc911x: Fix runtime PM imbalance on error
net/mlx4_core: fix a memory leak bug.
net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend
net: phy: mscc: fix initialization of the MACsec protocol mode
net: stmmac: don't attach interface until resume finishes
net: Fix return value about devm_platform_ioremap_resource()
net/mlx5: Fix error flow in case of function_setup failure
net/mlx5e: CT: Correctly get flow rule
net/mlx5e: Update netdev txq on completions during closure
net/mlx5: Annotate mutex destroy for root ns
net/mlx5: Don't maintain a case of del_sw_func being null
net/mlx5: Fix cleaning unmanaged flow tables
net/mlx5: Fix memory leak in mlx5_events_init
net/mlx5e: Fix inner tirs handling
net/mlx5e: kTLS, Destroy key object after destroying the TIS
net/mlx5e: Fix allowed tc redirect merged eswitch offload cases
net/mlx5: Avoid processing commands before cmdif is ready
net/mlx5: Fix a race when moving command interface to events mode
net/mlx5: Add command entry handling completion
rxrpc: Fix a memory leak in rxkad_verify_response()
...
Dinghao Liu [Sat, 23 May 2020 08:08:20 +0000 (16:08 +0800)]
net: smsc911x: Fix runtime PM imbalance on error
Remove runtime PM usage counter decrement when the
increment function has not been called to keep the
counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 23 May 2020 23:39:45 +0000 (16:39 -0700)]
Merge tag 'mlx5-fixes-2020-05-22' of git://git./linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2020-05-22
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
For -stable v4.13
('net/mlx5: Add command entry handling completion')
For -stable v5.2
('net/mlx5: Fix error flow in case of function_setup failure')
('net/mlx5: Fix memory leak in mlx5_events_init')
For -stable v5.3
('net/mlx5e: Update netdev txq on completions during closure')
('net/mlx5e: kTLS, Destroy key object after destroying the TIS')
('net/mlx5e: Fix inner tirs handling')
For -stable v5.6
('net/mlx5: Fix cleaning unmanaged flow tables')
('net/mlx5: Fix a race when moving command interface to events mode')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Qiushi Wu [Fri, 22 May 2020 19:07:15 +0000 (14:07 -0500)]
net/mlx4_core: fix a memory leak bug.
In function mlx4_opreq_action(), pointer "mailbox" is not released,
when mlx4_cmd_box() return and error, causing a memory leak bug.
Fix this issue by going to "out" label, mlx4_free_cmd_mailbox() can
free this pointer.
Fixes:
fe6f700d6cbb ("net/mlx4_core: Respond to operation request by firmware")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Grygorii Strashko [Fri, 22 May 2020 17:09:28 +0000 (20:09 +0300)]
net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend
vlan_for_each() are required to be called with rtnl_lock taken, otherwise
ASSERT_RTNL() warning will be triggered - which happens now during System
resume from suspend:
cpsw_suspend()
|- cpsw_ndo_stop()
|- __hw_addr_ref_unsync_dev()
|- cpsw_purge_all_mc()
|- vlan_for_each()
|- ASSERT_RTNL();
Hence, fix it by surrounding cpsw_ndo_stop() by rtnl_lock/unlock() calls.
Fixes:
15180eca569b ("net: ethernet: ti: cpsw: fix vlan mcast")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Antoine Tenart [Fri, 22 May 2020 15:55:45 +0000 (17:55 +0200)]
net: phy: mscc: fix initialization of the MACsec protocol mode
At the very end of the MACsec block initialization in the MSCC PHY
driver, the MACsec "protocol mode" is set. This setting should be set
based on the PHY id within the package, as the bank used to access the
register used depends on this. This was not done correctly, and only the
first bank was used leading to the two upper PHYs being unstable when
using the VSC8584. This patch fixes it.
Fixes:
1bbe0ecc2a1a ("net: phy: mscc: macsec initialization")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Leon Yu [Fri, 22 May 2020 15:29:43 +0000 (23:29 +0800)]
net: stmmac: don't attach interface until resume finishes
Commit
14b41a2959fb ("net: stmmac: Delete txtimer in suspend") was the
first attempt to fix a race between mod_timer() and setup_timer()
during stmmac_resume(). However the issue still exists as the commit
only addressed half of the issue.
Same race can still happen as stmmac_resume() re-attaches interface
way too early - even before hardware is fully initialized. Worse,
doing so allows network traffic to restart and stmmac_tx_timer_arm()
being called in the middle of stmmac_resume(), which re-init tx timers
in stmmac_init_coalesce(). timer_list will be corrupted and system
crashes as a result of race between mod_timer() and setup_timer().
systemd--1995 2.... 552950018us : stmmac_suspend: 4994
ksoftirq-9 0..s2 553123133us : stmmac_tx_timer_arm: 2276
systemd--1995 0.... 553127896us : stmmac_resume: 5101
systemd--320 7...2 553132752us : stmmac_tx_timer_arm: 2276
(sd-exec-1999 5...2 553135204us : stmmac_tx_timer_arm: 2276
---------------------------------
pc : run_timer_softirq+0x468/0x5e0
lr : run_timer_softirq+0x570/0x5e0
Call trace:
run_timer_softirq+0x468/0x5e0
__do_softirq+0x124/0x398
irq_exit+0xd8/0xe0
__handle_domain_irq+0x6c/0xc0
gic_handle_irq+0x60/0xb0
el1_irq+0xb8/0x180
arch_cpu_idle+0x38/0x230
default_idle_call+0x24/0x3c
do_idle+0x1e0/0x2b8
cpu_startup_entry+0x28/0x48
secondary_start_kernel+0x1b4/0x208
Fix this by deferring netif_device_attach() to the end of
stmmac_resume().
Signed-off-by: Leon Yu <leoyu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tiezhu Yang [Fri, 22 May 2020 11:03:21 +0000 (19:03 +0800)]
net: Fix return value about devm_platform_ioremap_resource()
When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mike Rapoport [Sat, 23 May 2020 19:57:18 +0000 (22:57 +0300)]
sparc32: fix page table traversal in srmmu_nocache_init()
The srmmu_nocache_init() uses __nocache_fix() macro to add an offset to
page table entry to access srmmu_nocache_pool.
But since sparc32 has only three actual page table levels, pgd, p4d and
pud are essentially the same thing and pgd_offset() and p4d_offset() are
no-ops, the __nocache_fix() should be done only at PUD level.
Remove __nocache_fix() for p4d_offset() and pud_offset() and keep it
only for PUD and lower levels.
Fixes:
c2bc26f7ca1f ("sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init()")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anatoly Pugachev <matorola@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 23 May 2020 18:21:47 +0000 (11:21 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"11 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
MAINTAINERS: add files related to kdump
z3fold: fix use-after-free when freeing handles
sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init()
MAINTAINERS: update email address for Naoya Horiguchi
sh: include linux/time_types.h for sockios
kasan: disable branch tracing for core runtime
selftests/vm/write_to_hugetlbfs.c: fix unused variable warning
selftests/vm/.gitignore: add mremap_dontunmap
rapidio: fix an error in get_user_pages_fast() error handling
x86: bitops: fix build regression
device-dax: don't leak kernel memory to user space after unloading kmem
Linus Torvalds [Sat, 23 May 2020 18:06:13 +0000 (11:06 -0700)]
Merge tag 'driver-core-5.7-rc7' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"So, turns out the kobject fix didn't quite work, so here are four
patches that in the end, result in just two driver core fixes for
reported issues that no one has had problems with.
The kobject patch that was originally in here has now been reverted,
as Guenter reported boot problems with it on some of his systems"
* tag 'driver-core-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "kobject: Make sure the parent does not get released before its children"
kobject: Make sure the parent does not get released before its children
driver core: Fix handling of SYNC_STATE_ONLY + STATELESS device links
driver core: Fix SYNC_STATE_ONLY device link implementation
Linus Torvalds [Sat, 23 May 2020 18:02:42 +0000 (11:02 -0700)]
Merge tag 'char-misc-5.7-rc7' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are some small char/misc driver fixes for 5.7-rc7 that resolve
some reported issues. Included in here are tiny fixes for the mei,
coresight, rtsx, ipack, and mhi drivers.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
misc: rtsx: Add short delay after exit from ASPM
bus: mhi: core: Fix some error return code
ipack: tpci200: fix error return code in tpci200_register()
coresight: cti: remove incorrect NULL return check
mei: release me_cl object reference
Linus Torvalds [Sat, 23 May 2020 17:57:55 +0000 (10:57 -0700)]
Merge tag 'staging-5.7-rc7' of git://git./linux/kernel/git/gregkh/staging
Pull staging/iio fixes from Greg KH:
"Here are some small staging and IIO driver fixes for 5.7-rc7
Nothing major, just a collection of IIO driver fixes for reported
issues, and a few small staging driver fixes that people have found.
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: wfx: unlock on error path
staging: greybus: Fix uninitialized scalar variable
staging: kpc2000: fix error return code in kp2000_pcie_probe()
iio: sca3000: Remove an erroneous 'get_device()'
iio: adc: stm32-dfsdm: fix device used to request dma
iio: adc: stm32-adc: fix device used to request dma
iio: adc: ti-ads8344: Fix channel selection
staging: iio: ad2s1210: Fix SPI reading
iio: dac: vf610: Fix an error handling path in 'vf610_dac_probe()'
iio: imu: st_lsm6dsx: unlock on error in st_lsm6dsx_shub_write_raw()
iio: chemical: atlas-sensor: correct DO-SM channels
Linus Torvalds [Sat, 23 May 2020 17:50:38 +0000 (10:50 -0700)]
Merge tag 'tty-5.7-rc7' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial fix from Greg KH:
"Here is a single serial driver fix for 5.7-rc7. It resolves an issue
with the SiFive serial console init sequence that was reported a
number of times.
It has been in linux-next for a while now with no reported issues"
* tag 'tty-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: add missing spin_lock_init for SiFive serial console
Linus Torvalds [Sat, 23 May 2020 17:42:12 +0000 (10:42 -0700)]
Merge tag 's390-5.7-4' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Add missing R_390_JMP_SLOT relocation type in KASLR code.
- Fix set_huge_pte_at for empty ptes issue which has been uncovered
with arch page table helper tests.
- Correct initrd location for kdump kernel.
- Fix s390_mmio_read/write with MIO in PCI code.
* tag 's390-5.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kaslr: add support for R_390_JMP_SLOT relocation type
s390/mm: fix set_huge_pte_at() for empty ptes
s390/kexec_file: fix initrd location for kdump kernel
s390/pci: Fix s390_mmio_read/write with MIO
Baoquan He [Sat, 23 May 2020 05:23:15 +0000 (22:23 -0700)]
MAINTAINERS: add files related to kdump
Kdump is implemented based on kexec, however some files are only related
to crash dumping and missing, add them to KDUMP entry.
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dave Young <dyoung@redhat.com>
Link: http://lkml.kernel.org/r/20200520103633.GW5029@MiWiFi-R3L-srv
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Uladzislau Rezki [Sat, 23 May 2020 05:23:12 +0000 (22:23 -0700)]
z3fold: fix use-after-free when freeing handles
free_handle() for a foreign handle may race with inter-page compaction,
what can lead to memory corruption.
To avoid that, take write lock not read lock in free_handle to be
synchronized with __release_z3fold_page().
For example KASAN can detect it:
==================================================================
BUG: KASAN: use-after-free in LZ4_decompress_safe+0x2c4/0x3b8
Read of size 1 at addr
ffffffc976695ca3 by task GoogleApiHandle/4121
CPU: 0 PID: 4121 Comm: GoogleApiHandle Tainted: P S OE 4.19.81-perf+ #162
Hardware name: Sony Mobile Communications. PDX-203(KONA) (DT)
Call trace:
LZ4_decompress_safe+0x2c4/0x3b8
lz4_decompress_crypto+0x3c/0x70
crypto_decompress+0x58/0x70
zcomp_decompress+0xd4/0x120
...
Apart from that, initialize zhdr->mapped_count in init_z3fold_page() and
remove "newpage" variable because it is not used anywhere.
Signed-off-by: Uladzislau Rezki <uladzislau.rezki@sony.com>
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Qian Cai <cai@lca.pw>
Cc: Raymond Jennings <shentino@gmail.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200520082100.28876-1-vitaly.wool@konsulko.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Sat, 23 May 2020 05:23:09 +0000 (22:23 -0700)]
sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init()
The kbuild test robot reported the following warning:
arch/sparc/mm/srmmu.c: In function 'srmmu_nocache_init': arch/sparc/mm/srmmu.c:300:9: error: variable 'pud' set but not used [-Werror=unused-but-set-variable]
300 | pud_t *pud;
This warning is caused by misprint in the page table traversal in
srmmu_nocache_init() function which accessed a PMD entry using PGD
rather than PUD.
Since sparc32 has only 3 page table levels, the PGD and PUD are
essentially the same and usage of __nocache_fix() removed the type
checking.
Use PUD for the consistency and to silence the compiler warning.
Fixes:
7235db268a2777bc38 ("sparc32: use pgtable-nopud instead of 4level-fixup")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anatoly Pugachev <matorola@gmail.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200520132005.GM1059226@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Sat, 23 May 2020 05:23:06 +0000 (22:23 -0700)]
MAINTAINERS: update email address for Naoya Horiguchi
My email address has changed due to system upgrade, so please update it
in MAINTAINERS list. My old address (n-horiguchi@ah.jp.nec.com) will be
still active for a few months.
Note that my email system has some encoding issue and can't send patches
in raw format via git-send-email. So patches from me will be delivered
via my free address (nao.horiguchi@gmail.com) or GitHub.
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1589874488-9247-1-git-send-email-naoya.horiguchi@nec.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arnd Bergmann [Sat, 23 May 2020 05:23:02 +0000 (22:23 -0700)]
sh: include linux/time_types.h for sockios
Using the socket ioctls on arch/sh (and only there) causes build time
problems when __kernel_old_timeval/__kernel_old_timespec are not already
visible to the compiler.
Add an explict include line for the header that defines these
structures.
Fixes:
8c709f9a0693 ("y2038: sh: remove timeval/timespec usage from headers")
Fixes:
0768e17073dc ("net: socket: implement 64-bit timestamps")
Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200519131327.1836482-1-arnd@arndb.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marco Elver [Sat, 23 May 2020 05:22:59 +0000 (22:22 -0700)]
kasan: disable branch tracing for core runtime
During early boot, while KASAN is not yet initialized, it is possible to
enter reporting code-path and end up in kasan_report().
While uninitialized, the branch there prevents generating any reports,
however, under certain circumstances when branches are being traced
(TRACE_BRANCH_PROFILING), we may recurse deep enough to cause kernel
reboots without warning.
To prevent similar issues in future, we should disable branch tracing
for the core runtime.
[elver@google.com: remove duplicate DISABLE_BRANCH_PROFILING, per Qian Cai]
Link: https://lore.kernel.org/lkml/20200517011732.GE24705@shao2-debian/
Link: http://lkml.kernel.org/r/20200522075207.157349-1-elver@google.com
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Qian Cai <cai@lca.pw>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r//20200517011732.GE24705@shao2-debian/
Link: http://lkml.kernel.org/r/20200519182459.87166-1-elver@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
John Hubbard [Sat, 23 May 2020 05:22:56 +0000 (22:22 -0700)]
selftests/vm/write_to_hugetlbfs.c: fix unused variable warning
Remove unused variable "i", which was triggering a compiler warning.
Fixes:
29750f71a9b4 ("hugetlb_cgroup: add hugetlb_cgroup reservation tests")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-By: Mina Almasry <almasrymina@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Link: http://lkml.kernel.org/r/20200517001245.361762-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
John Hubbard [Sat, 23 May 2020 05:22:53 +0000 (22:22 -0700)]
selftests/vm/.gitignore: add mremap_dontunmap
Add mremap_dontunmap to .gitignore.
Fixes:
0c28759ee3c9 ("selftests: add MREMAP_DONTUNMAP selftest")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Brian Geffon <bgeffon@google.com>
Link: http://lkml.kernel.org/r/20200517002509.362401-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
John Hubbard [Sat, 23 May 2020 05:22:48 +0000 (22:22 -0700)]
rapidio: fix an error in get_user_pages_fast() error handling
In the case of get_user_pages_fast() returning fewer pages than
requested, rio_dma_transfer() does not quite do the right thing. It
attempts to release all the pages that were requested, rather than just
the pages that were pinned.
Fix the error handling so that only the pages that were successfully
pinned are released.
Fixes:
e8de370188d0 ("rapidio: add mport char device driver")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200517235620.205225-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Desaulniers [Sat, 23 May 2020 05:22:45 +0000 (22:22 -0700)]
x86: bitops: fix build regression
This is easily reproducible via CC=clang + CONFIG_STAGING=y +
CONFIG_VT6656=m.
It turns out that if your config tickles __builtin_constant_p via
differences in choices to inline or not, these statements produce
invalid assembly:
$ cat foo.c
long a(long b, long c) {
asm("orb %1, %0" : "+q"(c): "r"(b));
return c;
}
$ gcc foo.c
foo.c: Assembler messages:
foo.c:2: Error: `%rax' not allowed with `orb'
Use the `%b` "x86 Operand Modifier" to instead force register allocation
to select a lower-8-bit GPR operand.
The "q" constraint only has meaning on -m32 otherwise is treated as
"r". Not all GPRs have low-8-bit aliases for -m32.
Fixes:
1651e700664b4 ("x86: Fix bitops.h warning with a moved cast")
Reported-by: kernelci.org bot <bot@kernelci.org>
Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Suggested-by: Brian Gerst <brgerst@gmail.com>
Suggested-by: H. Peter Anvin <hpa@zytor.com>
Suggested-by: Ilie Halip <ilie.halip@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> [build, clang-11]
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-By: Brian Gerst <brgerst@gmail.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Marco Elver <elver@google.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20200508183230.229464-1-ndesaulniers@google.com
Link: https://github.com/ClangBuiltLinux/linux/issues/961
Link: https://lore.kernel.org/lkml/20200504193524.GA221287@google.com/
Link: https://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html#x86Operandmodifiers
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Hildenbrand [Sat, 23 May 2020 05:22:42 +0000 (22:22 -0700)]
device-dax: don't leak kernel memory to user space after unloading kmem
Assume we have kmem configured and loaded:
[root@localhost ~]# cat /proc/iomem
...
140000000-
33fffffff : Persistent Memory$
140000000-
1481fffff : namespace0.0
150000000-
33fffffff : dax0.0
150000000-
33fffffff : System RAM
Assume we try to unload kmem. This force-unloading will work, even if
memory cannot get removed from the system.
[root@localhost ~]# rmmod kmem
[ 86.380228] removing memory fails, because memory [0x0000000150000000-0x0000000157ffffff] is onlined
...
[ 86.431225] kmem dax0.0: DAX region [mem 0x150000000-0x33fffffff] cannot be hotremoved until the next reboot
Now, we can reconfigure the namespace:
[root@localhost ~]# ndctl create-namespace --force --reconfig=namespace0.0 --mode=devdax
[ 131.409351] nd_pmem namespace0.0: could not reserve region [mem 0x140000000-0x33fffffff]dax
[ 131.410147] nd_pmem: probe of namespace0.0 failed with error -16namespace0.0 --mode=devdax
...
This fails as expected due to the busy memory resource, and the memory
cannot be used. However, the dax0.0 device is removed, and along its
name.
The name of the memory resource now points at freed memory (name of the
device):
[root@localhost ~]# cat /proc/iomem
...
140000000-
33fffffff : Persistent Memory
140000000-
1481fffff : namespace0.0
150000000-
33fffffff : �_�^7_��/_��wR��WQ���^��� ...
150000000-
33fffffff : System RAM
We have to make sure to duplicate the string. While at it, remove the
superfluous setting of the name and fixup a stale comment.
Fixes:
9f960da72b25 ("device-dax: "Hotremove" persistent memory that is used like normal RAM")
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@vger.kernel.org> [5.3]
Link: http://lkml.kernel.org/r/20200508084217.9160-2-david@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Greg Kroah-Hartman [Sat, 23 May 2020 15:11:11 +0000 (17:11 +0200)]
Revert "kobject: Make sure the parent does not get released before its children"
This reverts commit
4ef12f7198023c09ad6d25b652bd8748c965c7fa.
Guenter reports:
All my arm64be (arm64 big endian) boot tests crash with this
patch applied. Reverting it fixes the problem. Crash log and
bisect results (from pending-fixes branch) below.
And also:
arm64 images don't crash but report lots of "poison overwritten"
backtraces like the one below. On arm, I see "refcount_t:
underflow", also attached. I didn't bisect those, but given the
context I would suspect the same culprit.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200513151840.36400-1-heikki.krogerus@linux.intel.com
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: kernel test robot <rong.a.chen@intel.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sat, 23 May 2020 04:43:02 +0000 (21:43 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three minor fixes, two in drivers, one to fix a hang after reset with
iSCSI, and one to avoid a spurious log message; and the final core one
to correct a suspend/resume miscount with quiesced devices"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: Put lun_ref at end of tmr processing
scsi: pm: Balance pm_only counter of request queue during system resume
scsi: qla2xxx: Do not log message when reading port speed via sysfs
Linus Torvalds [Sat, 23 May 2020 04:37:09 +0000 (21:37 -0700)]
Merge tag 'drm-fixes-2020-05-23' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Things seemed to have quieten down, though no i915 pull (I even gave
them an extra 12 hours in case they were late).
The amdgpu floating point fix is probably the largest, but it just
moves some code around to it doesn't do fpu stuff outside the fpu
boundaries. Otherwise it's just a couple of vmwgfx fixes (maintainer
change) and two etnaviv fixes.
vmwgfx:
- change maintainers
- fix redundant assignment
- fix parameter name
- fix return value
etnaviv:
- memory leak fix when userspace passes a invalid softpin address
- off-by-one crashing the kernel in the perfmon domain iteration when
the GPU core has both 2D and 3D capabilities
amdgpu:
- DP fix
- Floating point fix
- Fix cursor stutter issue"
* tag 'drm-fixes-2020-05-23' of git://anongit.freedesktop.org/drm/drm:
drm/amd/display: Defer cursor lock until after VUPDATE
drm/amd/display: Remove dml_common_def file
drm/amd/display: DP training to set properly SCRAMBLING_DISABLE
drm/edid: Add Oculus Rift S to non-desktop list
drm/etnaviv: Fix a leak in submit_pin_objects()
drm/etnaviv: fix perfmon domain interation
drm/vmwgfx: Return true in function vmw_fence_obj_signaled()
drm/vmwgfx: remove redundant assignment to variable ret
drm/vmwgfx: Fix parameter name in vmw_bo_init
drm/vmwgfx: update MAINTAINERS entry
Shay Drory [Wed, 6 May 2020 11:52:04 +0000 (14:52 +0300)]
net/mlx5: Fix error flow in case of function_setup failure
Currently, if an error occurred during mlx5_function_setup(), we
keep dev->state as DEVICE_STATE_UP.
Fixing it by adding a goto label.
Fixes:
e161105e58da ("net/mlx5: Function setup/teardown procedures")
Signed-off-by: Shay Drory <shayd@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Mon, 18 May 2020 17:21:11 +0000 (20:21 +0300)]
net/mlx5e: CT: Correctly get flow rule
The correct way is to us the flow_cls_offload_flow_rule() wrapper
instead of f->rule directly.
Fixes:
4c3844d9e97e ("net/mlx5e: CT: Introduce connection tracking")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Moshe Shemesh [Tue, 7 Apr 2020 14:38:28 +0000 (17:38 +0300)]
net/mlx5e: Update netdev txq on completions during closure
On sq closure when we free its descriptors, we should also update netdev
txq on completions which would not arrive. Otherwise if we reopen sqs
and attach them back, for example on fw fatal recovery flow, we may get
tx timeout.
Fixes:
29429f3300a3 ("net/mlx5e: Timeout if SQ doesn't flush during close")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Thu, 14 May 2020 20:44:38 +0000 (23:44 +0300)]
net/mlx5: Annotate mutex destroy for root ns
Invoke mutex_destroy() to catch any errors.
Fixes:
2cc43b494a6c ("net/mlx5_core: Managing root flow table")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Mon, 11 May 2020 13:37:11 +0000 (16:37 +0300)]
net/mlx5: Don't maintain a case of del_sw_func being null
Add del_sw_func cb for root ns. Now there is no need to
maintain a case of del_sw_func being null when freeing the node.
Fixes:
2cc43b494a6c ("net/mlx5_core: Managing root flow table")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Mon, 11 May 2020 13:32:09 +0000 (16:32 +0300)]
net/mlx5: Fix cleaning unmanaged flow tables
Unmanaged flow tables doesn't have a parent and tree_put_node()
assume there is always a parent if cleaning is needed. fix that.
Fixes:
5281a0c90919 ("net/mlx5: fs_core: Introduce unmanaged flow tables")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Moshe Shemesh [Wed, 29 Apr 2020 20:56:58 +0000 (23:56 +0300)]
net/mlx5: Fix memory leak in mlx5_events_init
Fix memory leak in mlx5_events_init(), in case
create_single_thread_workqueue() fails, events
struct should be freed.
Fixes:
5d3c537f9070 ("net/mlx5: Handle event of power detection in the PCIE slot")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Roi Dayan [Thu, 30 Apr 2020 06:16:01 +0000 (09:16 +0300)]
net/mlx5e: Fix inner tirs handling
In the cited commit inner_tirs argument was added to create and destroy
inner tirs, and no indication was added to mlx5e_modify_tirs_hash()
function. In order to have a consistent handling, use
inner_indir_tir[0].tirn in tirs destroy/modify function as an indication
to whether inner tirs are created.
Inner tirs are not created for representors and before this commit,
a call to mlx5e_modify_tirs_hash() was sending HW commands to
modify non-existent inner tirs.
Fixes:
46dc933cee82 ("net/mlx5e: Provide explicit directive if to create inner indirect tirs")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Tariq Toukan [Mon, 27 Apr 2020 13:56:59 +0000 (16:56 +0300)]
net/mlx5e: kTLS, Destroy key object after destroying the TIS
The TLS TIS object contains the dek/key ID.
By destroying the key first, the TIS would contain an invalid
non-existing key ID.
Reverse the destroy order, this also acheives the desired assymetry
between the destroy and the create flows.
Fixes:
d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Maor Dickman [Thu, 23 Apr 2020 12:16:17 +0000 (15:16 +0300)]
net/mlx5e: Fix allowed tc redirect merged eswitch offload cases
After changing the parent_id to be the same for both NICs of same
The cited commit wrongly allow offload of tc redirect flows from
VF to uplink and vice versa when devcies are on different eswitch,
these cases aren't supported by HW.
Disallow the above offloads when devcies are on different eswitch
and VF LAG is not configured.
Fixes:
f6dc1264f1c0 ("net/mlx5e: Disallow tc redirect offload cases we don't support")
Signed-off-by: Maor Dickman <maord@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eran Ben Elisha [Thu, 19 Mar 2020 19:43:13 +0000 (21:43 +0200)]
net/mlx5: Avoid processing commands before cmdif is ready
When driver is reloading during recovery flow, it can't get new commands
till command interface is up again. Otherwise we may get to null pointer
trying to access non initialized command structures.
Add cmdif state to avoid processing commands while cmdif is not ready.
Fixes:
e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Eran Ben Elisha [Wed, 18 Mar 2020 19:44:32 +0000 (21:44 +0200)]
net/mlx5: Fix a race when moving command interface to events mode
After driver creates (via FW command) an EQ for commands, the driver will
be informed on new commands completion by EQE. However, due to a race in
driver's internal command mode metadata update, some new commands will
still be miss-handled by driver as if we are in polling mode. Such commands
can get two non forced completion, leading to already freed command entry
access.
CREATE_EQ command, that maps EQ to the command queue must be posted to the
command queue while it is empty and no other command should be posted.
Add SW mechanism that once the CREATE_EQ command is about to be executed,
all other commands will return error without being sent to the FW. Allow
sending other commands only after successfully changing the driver's
internal command mode metadata.
We can safely return error to all other commands while creating the command
EQ, as all other commands might be sent from the user/application during
driver load. Application can rerun them later after driver's load was
finished.
Fixes:
e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Moshe Shemesh [Fri, 27 Dec 2019 05:01:53 +0000 (07:01 +0200)]
net/mlx5: Add command entry handling completion
When FW response to commands is very slow and all command entries in
use are waiting for completion we can have a race where commands can get
timeout before they get out of the queue and handled. Timeout
completion on uninitialized command will cause releasing command's
buffers before accessing it for initialization and then we will get NULL
pointer exception while trying access it. It may also cause releasing
buffers of another command since we may have timeout completion before
even allocating entry index for this command.
Add entry handling completion to avoid this race.
Fixes:
e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
David S. Miller [Fri, 22 May 2020 23:43:58 +0000 (16:43 -0700)]
Merge tag 'rxrpc-fixes-
20200523-v2' of git://git./linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Fix a warning and a leak [ver #2]
Here are a couple of fixes for AF_RXRPC:
(1) Fix an uninitialised variable warning.
(2) Fix a leak of the ticket on error in rxkad.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Qiushi Wu [Fri, 22 May 2020 18:45:18 +0000 (13:45 -0500)]
rxrpc: Fix a memory leak in rxkad_verify_response()
A ticket was not released after a call of the function
"rxkad_decrypt_ticket" failed. Thus replace the jump target
"temporary_error_free_resp" by "temporary_error_free_ticket".
Fixes:
8c2f826dc3631 ("rxrpc: Don't put crypto buffers on the stack")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Markus Elfring <Markus.Elfring@web.de>
David Howells [Fri, 22 May 2020 22:58:28 +0000 (23:58 +0100)]
rxrpc: Fix a warning
Fix a warning due to an uninitialised variable.
le included from ../fs/afs/fs_probe.c:11:
../fs/afs/fs_probe.c: In function 'afs_fileserver_probe_result':
../fs/afs/internal.h:1453:2: warning: 'rtt_us' may be used uninitialized in this function [-Wmaybe-uninitialized]
1453 | printk("[%-6.6s] "FMT"\n", current->comm ,##__VA_ARGS__)
| ^~~~~~
../fs/afs/fs_probe.c:35:15: note: 'rtt_us' was declared here
Signed-off-by: David Howells <dhowells@redhat.com>
Qiushi Wu [Fri, 22 May 2020 21:50:27 +0000 (16:50 -0500)]
net: sun: fix missing release regions in cas_init_one().
In cas_init_one(), "pdev" is requested by "pci_request_regions", but it
was not released after a call of the function “pci_write_config_byte”
failed. Thus replace the jump target “err_write_cacheline” by
"err_out_free_res".
Fixes:
1f26dac32057 ("[NET]: Add Sun Cassini driver.")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean [Thu, 21 May 2020 21:31:23 +0000 (00:31 +0300)]
net: mscc: ocelot: fix address ageing time (again)
ocelot_set_ageing_time has 2 callers:
- felix_set_ageing_time: from drivers/net/dsa/ocelot/felix.c
- ocelot_port_attr_ageing_set: from drivers/net/ethernet/mscc/ocelot.c
The issue described in the fixed commit below actually happened for the
felix_set_ageing_time code path only, since ocelot_port_attr_ageing_set
was already dividing by 1000. So to make both paths symmetrical (and to
fix addresses getting aged way too fast on Ocelot), stop dividing by
1000 at caller side altogether.
Fixes:
c0d7eccbc761 ("net: mscc: ocelot: ANA_AUTOAGE_AGE_PERIOD holds a value in seconds, not ms")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Thu, 21 May 2020 20:03:08 +0000 (22:03 +0200)]
r8169: fix OCP access on RTL8117
According to r8168 vendor driver DASHv3 chips like RTL8168fp/RTL8117
need a special addressing for OCP access.
Fix is compile-tested only due to missing test hardware.
Fixes:
1287723aa139 ("r8169: add support for RTL8117")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 22 May 2020 23:08:14 +0000 (16:08 -0700)]
Merge branch 'mlxsw-Various-fixes'
Ido Schimmel says:
====================
mlxsw: Various fixes
Patch #1 from Jiri fixes a use-after-free discovered while fuzzing mlxsw
/ devlink with syzkaller.
Patch #2 from Amit works around a limitation in new versions of arping,
which is used in several selftests.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Amit Cohen [Thu, 21 May 2020 12:11:45 +0000 (15:11 +0300)]
selftests: mlxsw: qos_mc_aware: Specify arping timeout as an integer
Starting from iputils s20190709 (used in Fedora 31), arping does not
support timeout being specified as a decimal:
$ arping -c 1 -I swp1 -b 192.0.2.66 -q -w 0.1
arping: invalid argument: '0.1'
Previously, such timeouts were rounded to an integer.
Fix this by specifying the timeout as an integer.
Fixes:
a5ee171d087e ("selftests: mlxsw: qos_mc_aware: Add a test for UC awareness")
Signed-off-by: Amit Cohen <amitc@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 21 May 2020 12:11:44 +0000 (15:11 +0300)]
mlxsw: spectrum: Fix use-after-free of split/unsplit/type_set in case reload fails
In case of reload fail, the mlxsw_sp->ports contains a pointer to a
freed memory (either by reload_down() or reload_up() error path).
Fix this by initializing the pointer to NULL and checking it before
dereferencing in split/unsplit/type_set callpaths.
Fixes:
24cc68ad6c46 ("mlxsw: core: Add support for reload")
Reported-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jonathan McDowell [Thu, 21 May 2020 11:49:34 +0000 (12:49 +0100)]
net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x
The ipq806x_gmac_probe() function enables the PTP clock but not the
appropriate interface clocks. This means that if the bootloader hasn't
done so attempting to bring up the interface will fail with an error
like:
[ 59.028131] ipq806x-gmac-dwmac
37600000.ethernet: Failed to reset the dma
[ 59.028196] ipq806x-gmac-dwmac
37600000.ethernet eth1: stmmac_hw_setup: DMA engine initialization failed
[ 59.034056] ipq806x-gmac-dwmac
37600000.ethernet eth1: stmmac_open: Hw setup failed
This patch, a slightly cleaned up version of one posted by Sergey
Sergeev in:
https://forum.openwrt.org/t/support-for-mikrotik-rb3011uias-rm/4064/257
correctly enables the clock; we have already configured the source just
before this.
Tested on a MikroTik RB3011.
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 22 May 2020 23:05:42 +0000 (16:05 -0700)]
Merge branch 'netdevsim-Two-small-fixes'
Ido Schimmel says:
====================
netdevsim: Two small fixes
Fix two bugs observed while analyzing regression failures.
Patch #1 fixes a bug where sometimes the drop counter of a packet trap
policer would not increase.
Patch #2 adds a missing initialization of a variable in a related
selftest.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 21 May 2020 11:46:17 +0000 (14:46 +0300)]
selftests: netdevsim: Always initialize 'RET' variable
The variable is used by log_test() to check if the test case completely
successfully or not. In case it is not initialized at the start of a
test case, it is possible for the test case to fail despite not
encountering any errors.
Example:
```
...
TEST: Trap group statistics [ OK ]
TEST: Trap policer [FAIL]
Policer drop counter was not incremented
TEST: Trap policer binding [FAIL]
Policer drop counter was not incremented
```
Failure of trap_policer_test() caused trap_policer_bind_test() to fail
as well.
Fix by adding missing initialization of the variable.
Fixes:
5fbff58e27a1 ("selftests: netdevsim: Add test cases for devlink-trap policers")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 21 May 2020 11:46:16 +0000 (14:46 +0300)]
netdevsim: Ensure policer drop counter always increases
In case the policer drop counter is retrieved when the jiffies value is
a multiple of 64, the counter will not be incremented.
This randomly breaks a selftest [1] the reads the counter twice and
checks that it was incremented:
```
TEST: Trap policer [FAIL]
Policer drop counter was not incremented
```
Fix by always incrementing the counter by 1.
[1] tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
Fixes:
ad188458d012 ("netdevsim: Add devlink-trap policer support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 22 May 2020 22:53:30 +0000 (15:53 -0700)]
Merge tag 'rxrpc-fixes-
20200520' of git://git./linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Fix retransmission timeout and ACK discard
Here are a couple of fixes and an extra tracepoint for AF_RXRPC:
(1) Calculate the RTO pretty much as TCP does, rather than making
something up, including an initial 4s timeout (which causes return
probes from the fileserver to fail if a packet goes missing), and add
backoff.
(2) Fix the discarding of out-of-order received ACKs. We mustn't let the
hard-ACK point regress, nor do we want to do unnecessary
retransmission because the soft-ACK list regresses. This is not
trivial, however, due to some loose wording in various old protocol
specs, the ACK field that should be used for this sometimes has the
wrong information in it.
(3) Add a tracepoint to log a discarded ACK.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Valentin Longchamp [Wed, 20 May 2020 15:53:50 +0000 (17:53 +0200)]
net/ethernet/freescale: rework quiesce/activate for ucc_geth
ugeth_quiesce/activate are used to halt the controller when there is a
link change that requires to reconfigure the mac.
The previous implementation called netif_device_detach(). This however
causes the initial activation of the netdevice to fail precisely because
it's detached. For details, see [1].
A possible workaround was the revert of commit
net: linkwatch: add check for netdevice being present to linkwatch_do_dev
However, the check introduced in the above commit is correct and shall be
kept.
The netif_device_detach() is thus replaced with
netif_tx_stop_all_queues() that prevents any tranmission. This allows to
perform mac config change required by the link change, without detaching
the corresponding netdevice and thus not preventing its initial
activation.
[1] https://lists.openwall.net/netdev/2020/01/08/201
Signed-off-by: Valentin Longchamp <valentin@longchamp.me>
Acked-by: Matteo Ghidoni <matteo.ghidoni@ch.abb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jere Leppänen [Wed, 20 May 2020 15:15:31 +0000 (18:15 +0300)]
sctp: Start shutdown on association restart if in SHUTDOWN-SENT state and socket is closed
Commit
bdf6fa52f01b ("sctp: handle association restarts when the
socket is closed.") starts shutdown when an association is restarted,
if in SHUTDOWN-PENDING state and the socket is closed. However, the
rationale stated in that commit applies also when in SHUTDOWN-SENT
state - we don't want to move an association to ESTABLISHED state when
the socket has been closed, because that results in an association
that is unreachable from user space.
The problem scenario:
1. Client crashes and/or restarts.
2. Server (using one-to-one socket) calls close(). SHUTDOWN is lost.
3. Client reconnects using the same addresses and ports.
4. Server's association is restarted. The association and the socket
move to ESTABLISHED state, even though the server process has
closed its descriptor.
Also, after step 4 when the server process exits, some resources are
leaked in an attempt to release the underlying inet sock structure in
ESTABLISHED state:
IPv4: Attempt to release TCP socket in state 1
00000000377288c7
Fix by acting the same way as in SHUTDOWN-PENDING state. That is, if
an association is restarted in SHUTDOWN-SENT state and the socket is
closed, then start shutdown and don't move the association or the
socket to ESTABLISHED state.
Fixes:
bdf6fa52f01b ("sctp: handle association restarts when the socket is closed.")
Signed-off-by: Jere Leppänen <jere.leppanen@nokia.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 21 May 2020 18:29:58 +0000 (11:29 -0700)]
tipc: block BH before using dst_cache
dst_cache_get() documents it must be used with BH disabled.
sysbot reported :
BUG: using smp_processor_id() in preemptible [
00000000] code: /21697
caller is dst_cache_get+0x3a/0xb0 net/core/dst_cache.c:68
CPU: 0 PID: 21697 Comm: Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
check_preemption_disabled lib/smp_processor_id.c:47 [inline]
debug_smp_processor_id.cold+0x88/0x9b lib/smp_processor_id.c:57
dst_cache_get+0x3a/0xb0 net/core/dst_cache.c:68
tipc_udp_xmit.isra.0+0xb9/0xad0 net/tipc/udp_media.c:164
tipc_udp_send_msg+0x3e6/0x490 net/tipc/udp_media.c:244
tipc_bearer_xmit_skb+0x1de/0x3f0 net/tipc/bearer.c:526
tipc_enable_bearer+0xb2f/0xd60 net/tipc/bearer.c:331
__tipc_nl_bearer_enable+0x2bf/0x390 net/tipc/bearer.c:995
tipc_nl_bearer_enable+0x1e/0x30 net/tipc/bearer.c:1003
genl_family_rcv_msg_doit net/netlink/genetlink.c:673 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:718 [inline]
genl_rcv_msg+0x627/0xdf0 net/netlink/genetlink.c:735
netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
genl_rcv+0x24/0x40 net/netlink/genetlink.c:746
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362
___sys_sendmsg+0x100/0x170 net/socket.c:2416
__sys_sendmsg+0xec/0x1b0 net/socket.c:2449
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Fixes:
e9c1a793210f ("tipc: add dst_cache support for udp media")
Cc: Xin Long <lucien.xin@gmail.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Wed, 20 May 2020 11:26:35 +0000 (12:26 +0100)]
net: mvpp2: fix RX hashing for non-10G ports
When rxhash is enabled on any ethernet port except the first in each CP
block, traffic flow is prevented. The analysis is below:
I've been investigating this afternoon, and what I've found, comparing
a kernel without
895586d5dc32 and with
895586d5dc32 applied is:
- The table programmed into the hardware via mvpp22_rss_fill_table()
appears to be identical with or without the commit.
- When rxhash is enabled on eth2, mvpp2_rss_port_c2_enable() reports
that c2.attr[0] and c2.attr[2] are written back containing:
- with
895586d5dc32, failing:
00200000 40000000
- without
895586d5dc32, working:
04000000 40000000
- When disabling rxhash, c2.attr[0] and c2.attr[2] are written back as:
04000000 00000000
The second value represents the MVPP22_CLS_C2_ATTR2_RSS_EN bit, the
first value is the queue number, which comprises two fields. The high
5 bits are 24:29 and the low three are 21:23 inclusive. This comes
from:
c2.attr[0] = MVPP22_CLS_C2_ATTR0_QHIGH(qh) |
MVPP22_CLS_C2_ATTR0_QLOW(ql);
So, the working case gives eth2 a queue id of 4.0, or 32 as per
port->first_rxq, and the non-working case a queue id of 0.1, or 1.
The allocation of queue IDs seems to be in mvpp2_port_probe():
if (priv->hw_version == MVPP21)
port->first_rxq = port->id * port->nrxqs;
else
port->first_rxq = port->id * priv->max_port_rxqs;
Where:
if (priv->hw_version == MVPP21)
priv->max_port_rxqs = 8;
else
priv->max_port_rxqs = 32;
Making the port 0 (eth0 / eth1) have port->first_rxq = 0, and port 1
(eth2) be 32. It seems the idea is that the first 32 queues belong to
port 0, the second 32 queues belong to port 1, etc.
mvpp2_rss_port_c2_enable() gets the queue number from it's parameter,
'ctx', which comes from mvpp22_rss_ctx(port, 0). This returns
port->rss_ctx[0].
mvpp22_rss_context_create() is responsible for allocating that, which
it does by looking for an unallocated priv->rss_tables[] pointer. This
table is shared amongst all ports on the CP silicon.
When we write the tables in mvpp22_rss_fill_table(), the RSS table
entry is defined by:
u32 sel = MVPP22_RSS_INDEX_TABLE(rss_ctx) |
MVPP22_RSS_INDEX_TABLE_ENTRY(i);
where rss_ctx is the context ID (queue number) and i is the index in
the table.
If we look at what is written:
- The first table to be written has "sel" values of
00000000..
0000001f,
containing values 0..3. This appears to be for eth1. This is table 0,
RX queue number 0.
- The second table has "sel" values of
00000100..
0000011f, and appears
to be for eth2. These contain values 0x20..0x23. This is table 1,
RX queue number 0.
- The third table has "sel" values of
00000200..
0000021f, and appears
to be for eth3. These contain values 0x40..0x43. This is table 2,
RX queue number 0.
How do queue numbers translate to the RSS table? There is another
table - the RXQ2RSS table, indexed by the MVPP22_RSS_INDEX_QUEUE field
of MVPP22_RSS_INDEX and accessed through the MVPP22_RXQ2RSS_TABLE
register. Before
895586d5dc32, it was:
mvpp2_write(priv, MVPP22_RSS_INDEX,
MVPP22_RSS_INDEX_QUEUE(port->first_rxq));
mvpp2_write(priv, MVPP22_RXQ2RSS_TABLE,
MVPP22_RSS_TABLE_POINTER(port->id));
and after:
mvpp2_write(priv, MVPP22_RSS_INDEX, MVPP22_RSS_INDEX_QUEUE(ctx));
mvpp2_write(priv, MVPP22_RXQ2RSS_TABLE, MVPP22_RSS_TABLE_POINTER(ctx));
Before the commit, for eth2, that would've contained '32' for the
index and '1' for the table pointer - mapping queue 32 to table 1.
Remember that this is queue-high.queue-low of 4.0.
After the commit, we appear to map queue 1 to table 1. That again
looks fine on the face of it.
Section 9.3.1 of the A8040 manual seems indicate the reason that the
queue number is separated. queue-low seems to always come from the
classifier, whereas queue-high can be from the ingress physical port
number or the classifier depending on the MVPP2_CLS_SWFWD_PCTRL_REG.
We set the port bit in MVPP2_CLS_SWFWD_PCTRL_REG, meaning that queue-high
comes from the MVPP2_CLS_SWFWD_P2HQ_REG() register... and this seems to
be where our bug comes from.
mvpp2_cls_oversize_rxq_set() sets this up as:
mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
(port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
Setting the MVPP2_CLS_SWFWD_PCTRL_MASK bit means that the queue-high
for eth2 is _always_ 4, so only queues 32 through 39 inclusive are
available to eth2. Yet, we're trying to tell the classifier to set
queue-high, which will be ignored, to zero. Hence, the queue-high
field (MVPP22_CLS_C2_ATTR0_QHIGH()) from the classifier will be
ignored.
This means we end up directing traffic from eth2 not to queue 1, but
to queue 33, and then we tell it to look up queue 33 in the RSS table.
However, RSS table has not been programmed for queue 33, and so it ends
up (presumably) dropping the packets.
It seems that mvpp22_rss_context_create() doesn't take account of the
fact that the upper 5 bits of the queue ID can't actually be changed
due to the settings in mvpp2_cls_oversize_rxq_set(), _or_ it seems that
mvpp2_cls_oversize_rxq_set() has been missed in this commit. Either
way, these two functions mutually disagree with what queue number
should be used.
Looking deeper into what mvpp2_cls_oversize_rxq_set() and the MTU
validation is doing, it seems that MVPP2_CLS_SWFWD_P2HQ_REG() is used
for over-sized packets attempting to egress through this port. With
the classifier having had RSS enabled and directing eth2 traffic to
queue 1, we may still have packets appearing on queue 32 for this port.
However, the only way we may end up with over-sized packets attempting
to egress through eth2 - is if the A8040 forwards frames between its
ports. From what I can see, we don't support that feature, and the
kernel restricts the egress packet size to the MTU. In any case, if we
were to attempt to transmit an oversized packet, we have no support in
the kernel to deal with that appearing in the port's receive queue.
So, this patch attempts to solve the issue by clearing the
MVPP2_CLS_SWFWD_PCTRL_MASK() bit, allowing MVPP22_CLS_C2_ATTR0_QHIGH()
from the classifier to define the queue-high field of the queue number.
My testing seems to confirm my findings above - clearing this bit
means that if I enable rxhash on eth2, the interface can then pass
traffic, as we are now directing traffic to RX queue 1 rather than
queue 33. Traffic still seems to work with rxhash off as well.
Reported-by: Matteo Croce <mcroce@redhat.com>
Tested-by: Matteo Croce <mcroce@redhat.com>
Fixes:
895586d5dc32 ("net: mvpp2: cls: Use RSS contexts to handle RSS tables")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 22 May 2020 21:35:35 +0000 (14:35 -0700)]
Merge git://git./pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2020-05-22
The following pull-request contains BPF updates for your *net* tree.
We've added 3 non-merge commits during the last 3 day(s) which contain
a total of 5 files changed, 69 insertions(+), 11 deletions(-).
The main changes are:
1) Fix to reject mmap()'ing read-only array maps as writable since BPF verifier
relies on such map content to be frozen, from Andrii Nakryiko.
2) Fix breaking audit from secid_to_secctx() LSM hook by avoiding to use
call_int_hook() since this hook is not stackable, from KP Singh.
3) Fix BPF flow dissector program ref leak on netns cleanup, from Jakub Sitnicki.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Claudiu Manoil [Fri, 22 May 2020 08:54:34 +0000 (11:54 +0300)]
felix: Fix initialization of ioremap resources
The caller of devm_ioremap_resource(), either accidentally
or by wrong assumption, is writing back derived resource data
to global static resource initialization tables that should
have been constant. Meaning that after it computes the final
physical start address it saves the address for no reason
in the static tables. This doesn't affect the first driver
probing after reboot, but it breaks consecutive driver reloads
(i.e. driver unbind & bind) because the initialization tables
no longer have the correct initial values. So the next probe()
will map the device registers to wrong physical addresses,
causing ARM SError async exceptions.
This patch fixes all of the above.
Fixes:
56051948773e ("net: dsa: ocelot: add driver for Felix switch family")
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Todd Malsbary [Fri, 22 May 2020 02:10:49 +0000 (19:10 -0700)]
mptcp: use untruncated hash in ADD_ADDR HMAC
There is some ambiguity in the RFC as to whether the ADD_ADDR HMAC is
the rightmost 64 bits of the entire hash or of the leftmost 160 bits
of the hash. The intention, as clarified with the author of the RFC,
is the entire hash.
This change returns the entire hash from
mptcp_crypto_hmac_sha (instead of only the first 160 bits), and moves
any truncation/selection operation on the hash to the caller.
Fixes:
12555a2d97e5 ("mptcp: use rightmost 64 bits in ADD_ADDR HMAC")
Reviewed-by: Christoph Paasch <cpaasch@apple.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Todd Malsbary <todd.malsbary@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 22 May 2020 18:12:30 +0000 (11:12 -0700)]
Merge tag 'io_uring-5.7-2020-05-22' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A small collection of small fixes that should go into this release:
- Two fixes for async request preparation (Pavel)
- Busy clear fix for SQPOLL (Xiaoguang)
- Don't use kiocb->private for O_DIRECT buf index, some file systems
use it (Bijan)
- Kill dead check in io_splice()
- Ensure sqo_wait is initialized early
- Cancel task_work if we fail adding to original process
- Only add (IO)pollable requests to iopoll list, fixing a regression
in this merge window"
* tag 'io_uring-5.7-2020-05-22' of git://git.kernel.dk/linux-block:
io_uring: reset -EBUSY error when io sq thread is waken up
io_uring: don't add non-IO requests to iopoll pending list
io_uring: don't use kiocb.private to store buf_index
io_uring: cancel work if task_work_add() fails
io_uring: remove dead check in io_splice()
io_uring: fix FORCE_ASYNC req preparation
io_uring: don't prepare DRAIN reqs twice
io_uring: initialize ctx->sqo_wait earlier
Linus Torvalds [Fri, 22 May 2020 18:10:42 +0000 (11:10 -0700)]
Merge tag 'block-5.7-2020-05-22' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Two fixes for null_blk zone mode"
* tag 'block-5.7-2020-05-22' of git://git.kernel.dk/linux-block:
null_blk: don't allow discard for zoned mode
null_blk: return error for invalid zone size
Linus Torvalds [Fri, 22 May 2020 18:08:26 +0000 (11:08 -0700)]
Merge tag 'riscv-for-linus-5.7-rc7' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"Two fixes:
- Another !MMU build fix that was a straggler from last week
- A fix to use the "register" keyword for the GP global register
variable"
* tag 'riscv-for-linus-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: gp_in_global needs register keyword
riscv: Fix print_vm_layout build error if NOMMU
Borislav Petkov [Fri, 22 May 2020 18:06:25 +0000 (20:06 +0200)]
Merge tag 'efi-fixes-for-v5.7-rc6' of git://git./linux/kernel/git/efi/efi into efi/urgent
Pull EFI fixes from Ard Biesheuvel:
"- fix EFI framebuffer earlycon for wide fonts
- avoid filling screen_info with garbage if the EFI framebuffer is not
available
- fix a potential host tool build error due to a symbol clash on x86
- work around a EFI firmware bug regarding the binary format of the TPM
final events table
- fix a missing memory free by reworking the E820 table sizing routine to
not do the allocation in the first place
- add CPER parsing for firmware errors"
Josh Poimboeuf [Fri, 22 May 2020 13:54:35 +0000 (08:54 -0500)]
x86/unwind/orc: Fix unwind_get_return_address_ptr() for inactive tasks
Normally, show_trace_log_lvl() scans the stack, looking for text
addresses to print. In parallel, it unwinds the stack with
unwind_next_frame(). If the stack address matches the pointer returned
by unwind_get_return_address_ptr() for the current frame, the text
address is printed normally without a question mark. Otherwise it's
considered a breadcrumb (potentially from a previous call path) and it's
printed with a question mark to indicate that the address is unreliable
and typically can be ignored.
Since the following commit:
f1d9a2abff66 ("x86/unwind/orc: Don't skip the first frame for inactive tasks")
... for inactive tasks, show_trace_log_lvl() prints *only* unreliable
addresses (prepended with '?').
That happens because, for the first frame of an inactive task,
unwind_get_return_address_ptr() returns the wrong return address
pointer: one word *below* the task stack pointer. show_trace_log_lvl()
starts scanning at the stack pointer itself, so it never finds the first
'reliable' address, causing only guesses to being printed.
The first frame of an inactive task isn't a normal stack frame. It's
actually just an instance of 'struct inactive_task_frame' which is left
behind by __switch_to_asm(). Now that this inactive frame is actually
exposed to callers, fix unwind_get_return_address_ptr() to interpret it
properly.
Fixes:
f1d9a2abff66 ("x86/unwind/orc: Don't skip the first frame for inactive tasks")
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200522135435.vbxs7umku5pyrdbk@treble
Linus Torvalds [Fri, 22 May 2020 16:34:19 +0000 (09:34 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Bring the PTRACE_SYSEMU semantics in line with the man page.
- Annotate variable assignment in get_user() with the type to avoid
sparse warnings.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Add get_user() type annotation on the !access_ok() path
arm64: Fix PTRACE_SYSEMU semantics
Linus Torvalds [Fri, 22 May 2020 16:22:22 +0000 (09:22 -0700)]
Merge tag 'sound-5.7-rc7' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a few small fixes: the only significant one is a slight
improvement for PCM running position update with no-period-elapsed
case while the rest are HD-audio fixups and ice1712 model quirk"
* tag 'sound-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Add more fixup entries for Clevo machines
ALSA: iec1712: Initialize STDSP24 properly when using the model=staudio option
ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Xtreme
ALSA: pcm: fix incorrect hw_base increase
Al Viro [Fri, 22 May 2020 14:23:21 +0000 (15:23 +0100)]
arm64: Add get_user() type annotation on the !access_ok() path
Sparse reports "Using plain integer as NULL pointer" when the arm64
__get_user_error() assigns 0 to a pointer type. Use proper type
annotation.
Signed-of-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: kbuild test robot <lkp@intel.com>
Link: http://lkml.kernel.org/r/20200522142321.GP23230@ZenIV.linux.org.uk
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Linus Torvalds [Fri, 22 May 2020 15:51:39 +0000 (08:51 -0700)]
Merge tag 'powerpc-5.7-5' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- a revert of a recent change to the PTE bits for 32-bit BookS, which
broke swap.
- a "fix" to disable STRICT_KERNEL_RWX for 64-bit in Kconfig, as it's
causing crashes for some people.
Thanks to Christophe Leroy and Rui Salvaterra.
* tag 'powerpc-5.7-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Disable STRICT_KERNEL_RWX
Revert "powerpc/32s: reorder Linux PTE bits to better match Hash PTE bits."