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Pull drm fixes from Dave Airlie:
"Regular weekly merge request, mostly amdgpu and misc bits in
xe/etnaviv/gma500 and some core changes. Nothing too outlandish, seems
to be about normal for this time of release.
atomic-helpers:
- Fix memory leak in drm_format_conv_state_copy()
fbdev:
- fbdefio: Fix address calculation
amdgpu:
- Suspend/resume fix
- Don't expose gpu_od directory if it's empty
- SDMA 4.4.2 fix
- VPE fix
- BO eviction fix
- UMSCH fix
- SMU 13.0.6 reset fixes
- GPUVM flush accounting fix
- SDMA 5.2 fix
- Fix possible UAF in mes code
amdkfd:
- Eviction fence handling fix
- Fix memory leak when GPU memory allocation fails
- Fix dma-buf validation
- Fix rescheduling of restore worker
- SVM fix
gma500:
- Fix crash during boot
etnaviv:
- fix GC7000 TX clock gating
- revert NPU UAPI changes
xe:
- Fix error paths on managed allocations
- Fix PF/VF relay messages"
* tag 'drm-fixes-2024-04-26' of https://gitlab.freedesktop.org/drm/kernel: (23 commits)
Revert "drm/etnaviv: Expose a few more chipspecs to userspace"
drm/etnaviv: fix tx clock gating on some GC7000 variants
drm/xe/guc: Fix arguments passed to relay G2H handlers
drm/xe: call free_gsc_pkt only once on action add failure
drm/xe: Remove sysfs only once on action add failure
fbdev: fix incorrect address computation in deferred IO
drm/amdgpu/mes: fix use-after-free issue
drm/amdgpu/sdma5.2: use legacy HDP flush for SDMA2/3
drm/amdgpu: Fix the ring buffer size for queue VM flush
drm/amdkfd: Add VRAM accounting for SVM migration
drm/amd/pm: Restore config space after reset
drm/amdgpu/umsch: don't execute umsch test when GPU is in reset/suspend
drm/amdkfd: Fix rescheduling of restore worker
drm/amdgpu: Update BO eviction priorities
drm/amdgpu/vpe: fix vpe dpm setup failed
drm/amdgpu: Assign correct bits for SDMA HDP flush
drm/amdgpu/pm: Remove gpu_od if it's an empty directory
drm/amdkfd: make sure VM is ready for updating operations
drm/amdgpu: Fix leak when GPU memory allocation fails
drm/amdkfd: Fix eviction fence handling
...
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https://git.pengutronix.de/git/lst/linux into drm-fixes
- fix GC7000 TX clock gating
- revert NPU UAPI changes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/c24457dc18ba9eab3ff919b398a25b1af9f1124e.camel@pengutronix.de
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This reverts commit 1dccdba084897443d116508a8ed71e0ac8a031a4.
In userspace a different approach was choosen - hwdb. As a result, there
is no need for these values.
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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Pull virtio fix from Michael Tsirkin:
"enum renames for vdpa uapi - we better do this now before the names
have been exposed in any releases"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vDPA: code clean for vhost_vdpa uapi
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This commit cleans up the uapi for vhost_vdpa by
better naming some of the enums which report blk
information to user space, and they are not
in any official releases yet.
Fixes: 1ac61ddfee93 ("vDPA: report virtio-blk flush info to user space")
Fixes: ae1374b7f72c ("vDPA: report virtio-block read-only info to user space")
Fixes: 330b8aea6924 ("vDPA: report virtio-block max segment size to user space")
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240415111047.1047774-1-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, wireless and bluetooth.
Nothing major, regression fixes are mostly in drivers, two more of
those are flowing towards us thru various trees. I wish some of the
changes went into -rc5, we'll try to keep an eye on frequency of PRs
from sub-trees.
Also disproportional number of fixes for bugs added in v6.4, strange
coincidence.
Current release - regressions:
- igc: fix LED-related deadlock on driver unbind
- wifi: mac80211: small fixes to recent clean up of the connection
process
- Revert "wifi: iwlwifi: bump FW API to 90 for BZ/SC devices", kernel
doesn't have all the code to deal with that version, yet
- Bluetooth:
- set power_ctrl_enabled on NULL returned by gpiod_get_optional()
- qca: fix invalid device address check, again
- eth: ravb: fix registered interrupt names
Current release - new code bugs:
- wifi: mac80211: check EHT/TTLM action frame length
Previous releases - regressions:
- fix sk_memory_allocated_{add|sub} for architectures where
__this_cpu_{add|sub}* are not IRQ-safe
- dsa: mv88e6xx: fix link setup for 88E6250
Previous releases - always broken:
- ip: validate dev returned from __in_dev_get_rcu(), prevent possible
null-derefs in a few places
- switch number of for_each_rcu() loops using call_rcu() on the
iterator to for_each_safe()
- macsec: fix isolation of broadcast traffic in presence of offload
- vxlan: drop packets from invalid source address
- eth: mlxsw: trap and ACL programming fixes
- eth: bnxt: PCIe error recovery fixes, fix counting dropped packets
- Bluetooth:
- lots of fixes for the command submission rework from v6.4
- qca: fix NULL-deref on non-serdev suspend
Misc:
- tools: ynl: don't ignore errors in NLMSG_DONE messages"
* tag 'net-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc().
net: b44: set pause params only when interface is up
tls: fix lockless read of strp->msg_ready in ->poll
dpll: fix dpll_pin_on_pin_register() for multiple parent pins
net: ravb: Fix registered interrupt names
octeontx2-af: fix the double free in rvu_npc_freemem()
net: ethernet: ti: am65-cpts: Fix PTPv1 message type on TX packets
ice: fix LAG and VF lock dependency in ice_reset_vf()
iavf: Fix TC config comparison with existing adapter TC config
i40e: Report MFS in decimal base instead of hex
i40e: Do not use WQ_MEM_RECLAIM flag for workqueue
net: ti: icssg-prueth: Fix signedness bug in prueth_init_rx_chns()
net/mlx5e: Advertise mlx5 ethernet driver updates sk_buff md_dst for MACsec
macsec: Detect if Rx skb is macsec-related for offloading devices that update md_dst
ethernet: Add helper for assigning packet type when dest address does not match device address
macsec: Enable devices to advertise whether they update sk_buff md_dst during offloads
net: phy: dp83869: Fix MII mode failure
netfilter: nf_tables: honor table dormant flag from netdev release event path
eth: bnxt: fix counting packets discarded due to OOM and netpoll
igc: Fix LED-related deadlock on driver unbind
...
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syzbot reported a lockdep splat regarding unix_gc_lock and
unix_state_lock().
One is called from recvmsg() for a connected socket, and another
is called from GC for TCP_LISTEN socket.
So, the splat is false-positive.
Let's add a dedicated lock class for the latter to suppress the splat.
Note that this change is not necessary for net-next.git as the issue
is only applied to the old GC impl.
[0]:
WARNING: possible circular locking dependency detected
6.9.0-rc5-syzkaller-00007-g4d2008430ce8 #0 Not tainted
-----------------------------------------------------
kworker/u8:1/11 is trying to acquire lock:
ffff88807cea4e70 (&u->lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffff88807cea4e70 (&u->lock){+.+.}-{2:2}, at: __unix_gc+0x40e/0xf70 net/unix/garbage.c:302
but task is already holding lock:
ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf70 net/unix/garbage.c:261
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (unix_gc_lock){+.+.}-{2:2}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
unix_notinflight+0x13d/0x390 net/unix/garbage.c:140
unix_detach_fds net/unix/af_unix.c:1819 [inline]
unix_destruct_scm+0x221/0x350 net/unix/af_unix.c:1876
skb_release_head_state+0x100/0x250 net/core/skbuff.c:1188
skb_release_all net/core/skbuff.c:1200 [inline]
__kfree_skb net/core/skbuff.c:1216 [inline]
kfree_skb_reason+0x16d/0x3b0 net/core/skbuff.c:1252
kfree_skb include/linux/skbuff.h:1262 [inline]
manage_oob net/unix/af_unix.c:2672 [inline]
unix_stream_read_generic+0x1125/0x2700 net/unix/af_unix.c:2749
unix_stream_splice_read+0x239/0x320 net/unix/af_unix.c:2981
do_splice_read fs/splice.c:985 [inline]
splice_file_to_pipe+0x299/0x500 fs/splice.c:1295
do_splice+0xf2d/0x1880 fs/splice.c:1379
__do_splice fs/splice.c:1436 [inline]
__do_sys_splice fs/splice.c:1652 [inline]
__se_sys_splice+0x331/0x4a0 fs/splice.c:1634
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (&u->lock){+.+.}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
__unix_gc+0x40e/0xf70 net/unix/garbage.c:302
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(unix_gc_lock);
lock(&u->lock);
lock(unix_gc_lock);
lock(&u->lock);
*** DEADLOCK ***
3 locks held by kworker/u8:1/11:
#0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 kernel/workqueue.c:3335
#1: ffffc90000107d00 (unix_gc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc90000107d00 (unix_gc_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 kernel/workqueue.c:3335
#2: ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
#2: ffffffff8f6ab638 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf70 net/unix/garbage.c:261
stack backtrace:
CPU: 0 PID: 11 Comm: kworker/u8:1 Not tainted 6.9.0-rc5-syzkaller-00007-g4d2008430ce8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound __unix_gc
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
__unix_gc+0x40e/0xf70 net/unix/garbage.c:302
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Fixes: 47d8ac011fe1 ("af_unix: Fix garbage collector racing against connect()")
Reported-and-tested-by: syzbot+fa379358c28cc87cc307@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=fa379358c28cc87cc307
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20240424170443.9832-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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tls_sk_poll is called without locking the socket, and needs to read
strp->msg_ready (via tls_strp_msg_ready). Convert msg_ready to a bool
and use READ_ONCE/WRITE_ONCE where needed. The remaining reads are
only performed when the socket is locked.
Fixes: 121dca784fc0 ("tls: suppress wakeups unless we have a full record")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/0b7ee062319037cf86af6b317b3d72f7bfcd2e97.1713797701.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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match device address
Enable reuse of logic in eth_type_trans for determining packet type.
Suggested-by: Sabrina Dubroca <sd@queasysnail.net>
Cc: stable@vger.kernel.org
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/20240423181319.115860-3-rrameshbabu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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during offloads
Cannot know whether a Rx skb missing md_dst is intended for MACsec or not
without knowing whether the device is able to update this field during an
offload. Assume that an offload to a MACsec device cannot support updating
md_dst by default. Capable devices can advertise that they do indicate that
an skb is related to a MACsec offloaded packet using the md_dst.
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: stable@vger.kernel.org
Fixes: 860ead89b851 ("net/macsec: Add MACsec skb_metadata_dst Rx Data path support")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/20240423181319.115860-2-rrameshbabu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes berg says:
====================
Fixes for the current cycle:
* ath11k: convert to correct RCU iteration of IPv6 addresses
* iwlwifi: link ID, FW API version, scanning and PASN fixes
* cfg80211: NULL-deref and tracing fixes
* mac80211: connection mode, mesh fast-TX, multi-link and
various other small fixes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The rate mask is intended for use during operation, and
can be set to only have masks for the currently active
band. As such, it cannot be used for scanning which can
be on other bands as well.
Simply ignore the rate masks during scanning to avoid
warnings from incorrect settings.
Reported-by: syzbot+fdc5123366fb9c3fdc6d@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=fdc5123366fb9c3fdc6d
Co-developed-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Tested-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://msgid.link/20240326220854.9594cbb418ca.I7f86c0ba1f98cf7e27c2bacf6c2d417200ecea5c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The code shall always check if HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE has
been set before attempting to use HCI_OP_READ_ENC_KEY_SIZE.
Fixes: c569242cd492 ("Bluetooth: hci_event: set the conn encrypted before conn establishes")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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The extended advertising reports do report the PHYs so this store then
in hci_conn so it can be later used in hci_le_ext_create_conn_sync to
narrow the PHYs to be scanned since the controller will also perform a
scan having a smaller set of PHYs shall reduce the time it takes to
find and connect peers.
Fixes: 288c90224eec ("Bluetooth: Enable all supported LE PHY by default")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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Jonathan Heathcote reported a regression caused by blamed commit
on aarch64 architecture.
x86 happens to have irq-safe __this_cpu_add_return()
and __this_cpu_sub(), but this is not generic.
I think my confusion came from "struct sock" argument,
because these helpers are called with a locked socket.
But the memory accounting is per-proto (and per-cpu after
the blamed commit). We might cleanup these helpers later
to directly accept a "struct proto *proto" argument.
Switch to this_cpu_add_return() and this_cpu_xchg()
operations, and get rid of preempt_disable()/preempt_enable() pairs.
Fast path becomes a bit faster as a result :)
Many thanks to Jonathan Heathcote for his awesome report and
investigations.
Fixes: 3cd3399dd7a8 ("net: implement per-cpu reserves for memory_allocated")
Reported-by: Jonathan Heathcote <jonathan.heathcote@bbc.co.uk>
Closes: https://lore.kernel.org/netdev/VI1PR01MB42407D7947B2EA448F1E04EFD10D2@VI1PR01MB4240.eurprd01.prod.exchangelabs.com/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Link: https://lore.kernel.org/r/20240421175248.1692552-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fix from Chuck Lever:
- Fix an NFS/RDMA performance regression in v6.9-rc
* tag 'nfsd-6.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
Revert "svcrdma: Add Write chunk WRs to the RPC's Send WR chain"
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Performance regression reported with NFS/RDMA using Omnipath,
bisected to commit e084ee673c77 ("svcrdma: Add Write chunk WRs to
the RPC's Send WR chain").
Tracing on the server reports:
nfsd-7771 [060] 1758.891809: svcrdma_sq_post_err:
cq.id=205 cid=226 sc_sq_avail=13643/851 status=-12
sq_post_err reports ENOMEM, and the rdma->sc_sq_avail (13643) is
larger than rdma->sc_sq_depth (851). The number of available Send
Queue entries is always supposed to be smaller than the Send Queue
depth. That seems like a Send Queue accounting bug in svcrdma.
As it's getting to be late in the 6.9-rc cycle, revert this commit.
It can be revisited in a subsequent kernel release.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218743
Fixes: e084ee673c77 ("svcrdma: Add Write chunk WRs to the RPC's Send WR chain")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver fixes from Greg KH:
"Here are some small char/misc and other driver fixes for 6.9-rc5.
Included in here are the following:
- binder driver fix for reported problem
- speakup crash fix
- mei driver fixes for reported problems
- comdei driver fix
- interconnect driver fixes
- rtsx driver fix
- peci.h kernel doc fix
All of these have been in linux-next for over a week with no reported
problems"
* tag 'char-misc-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
peci: linux/peci.h: fix Excess kernel-doc description warning
binder: check offset alignment in binder_get_object()
comedi: vmk80xx: fix incomplete endpoint checking
mei: vsc: Unregister interrupt handler for system suspend
Revert "mei: vsc: Call wake_up() in the threaded IRQ handler"
misc: rtsx: Fix rts5264 driver status incorrect when card removed
mei: me: disable RPL-S on SPS and IGN firmwares
speakup: Avoid crash on very long word
interconnect: Don't access req_list while it's being manipulated
interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM
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Remove the @controller: line to prevent the kernel-doc warning:
include/linux/peci.h:84: warning: Excess struct member 'controller' description in 'peci_device'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Iwona Winiarska <iwona.winiarska@intel.com>
Cc: openbmc@lists.ozlabs.org
Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com>
Fixes: 6523d3b2ffa2 ("peci: Add core infrastructure")
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240329182910.29495-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
- Add a missing memory barrier in the concurrency ID mm switching
* tag 'sched_urgent_for_v6.9_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Add missing memory barrier in switch_mm_cid
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Many architectures' switch_mm() (e.g. arm64) do not have an smp_mb()
which the core scheduler code has depended upon since commit:
commit 223baf9d17f25 ("sched: Fix performance regression introduced by mm_cid")
If switch_mm() doesn't call smp_mb(), sched_mm_cid_remote_clear() can
unset the actively used cid when it fails to observe active task after it
sets lazy_put.
There *is* a memory barrier between storing to rq->curr and _return to
userspace_ (as required by membarrier), but the rseq mm_cid has stricter
requirements: the barrier needs to be issued between store to rq->curr
and switch_mm_cid(), which happens earlier than:
- spin_unlock(),
- switch_to().
So it's fine when the architecture switch_mm() happens to have that
barrier already, but less so when the architecture only provides the
full barrier in switch_to() or spin_unlock().
It is a bug in the rseq switch_mm_cid() implementation. All architectures
that don't have memory barriers in switch_mm(), but rather have the full
barrier either in finish_lock_switch() or switch_to() have them too late
for the needs of switch_mm_cid().
Introduce a new smp_mb__after_switch_mm(), defined as smp_mb() in the
generic barrier.h header, and use it in switch_mm_cid() for scheduler
transitions where switch_mm() is expected to provide a memory barrier.
Architectures can override smp_mb__after_switch_mm() if their
switch_mm() implementation provides an implicit memory barrier.
Override it with a no-op on x86 which implicitly provide this memory
barrier by writing to CR3.
Fixes: 223baf9d17f2 ("sched: Fix performance regression introduced by mm_cid")
Reported-by: levi.yun <yeoreum.yun@arm.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> # for arm64
Acked-by: Dave Hansen <dave.hansen@linux.intel.com> # for x86
Cc: <stable@vger.kernel.org> # 6.4.x
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20240415152114.59122-2-mathieu.desnoyers@efficios.com
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Pull block fixes from Jens Axboe:
"Just two minor fixes that should go into the 6.9 kernel release, one
fixing a regression with partition scanning errors, and one fixing a
WARN_ON() that can get triggered if we race with a timer"
* tag 'block-6.9-20240420' of git://git.kernel.dk/linux:
blk-iocost: do not WARN if iocg was already offlined
block: propagate partition scanning errors to the BLKRRPART ioctl
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Commit 4601b4b130de ("block: reopen the device in blkdev_reread_part")
lost the propagation of I/O errors from the low-level read of the
partition table to the user space caller of the BLKRRPART.
Apparently some user space relies on, so restore the propagation. This
isn't exactly pretty as other block device open calls explicitly do not
are about these errors, so add a new BLK_OPEN_STRICT_SCAN to opt into
the error propagation.
Fixes: 4601b4b130de ("block: reopen the device in blkdev_reread_part")
Reported-by: Saranya Muruganandam <saranyamohan@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://lore.kernel.org/r/20240417144743.2277601-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A couple clk driver fixes, a build fix, and a deadlock fix:
- Mediatek mt7988 has broken PCIe because the wrong parent is used
- Mediatek clk drivers may deadlock when registering their clks
because the clk provider device is repeatedly runtime PM resumed
and suspended during probe and clk registration.
Resuming the clk provider device deadlocks with an ABBA deadlock
due to genpd_lock and the clk prepare_lock. The fix is to keep the
device runtime resumed while registering clks.
- Another runtime PM related deadlock, this time with disabling
unused clks during late init.
We get an ABBA deadlock where a device is runtime PM resuming (or
suspending) while the disabling of unused clks is happening in
parallel. That runtime PM action calls into the clk framework and
tries to grab the clk prepare_lock while the disabling of unused
clks holds the prepare_lock and is waiting for that runtime PM
action to complete.
The fix is to runtime resume all the clk provider devices before
grabbing the clk prepare_lock during disable unused.
- A build fix to provide an empty devm_clk_rate_exclusive_get()
function when CONFIG_COMMON_CLK=n"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: mediatek: mt7988-infracfg: fix clocks for 2nd PCIe port
clk: mediatek: Do a runtime PM get on controllers during probe
clk: Get runtime PM before walking tree for clk_summary
clk: Get runtime PM before walking tree during disable_unused
clk: Initialize struct clk_core kref earlier
clk: Don't hold prepare_lock when calling kref_put()
clk: Remove prepare_lock hold assertion in __clk_release()
clk: Provide !COMMON_CLK dummy for devm_clk_rate_exclusive_get()
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To be able to compile drivers using devm_clk_rate_exclusive_get() also
on platforms without the common clk framework, add a dummy
implementation that does the same as clk_rate_exclusive_get() in that
case (i.e. nothing).
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403270305.ydvX9xq1-lkp@intel.com/
Fixes: b0cde62e4c54 ("clk: Add a devm variant of clk_rate_exclusive_get()")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240327073310.520950-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig fixes from Masami Hiramatsu:
- Fix potential static_command_line buffer overrun.
Currently we allocate the memory for static_command_line based on
"boot_command_line", but it will copy "command_line" into it. So we
use the length of "command_line" instead of "boot_command_line" (as
we previously did)
- Use memblock_free_late() in xbc_exit() instead of memblock_free()
after the buddy system is initialized
- Fix a kerneldoc warning
* tag 'bootconfig-fixes-v6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
bootconfig: Fix the kerneldoc of _xbc_exit()
bootconfig: use memblock_free_late to free xbc memory to buddy
init/main.c: Fix potential static_command_line memory overflow
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On the time to free xbc memory in xbc_exit(), memblock may has handed
over memory to buddy allocator. So it doesn't make sense to free memory
back to memblock. memblock_free() called by xbc_exit() even causes UAF bugs
on architectures with CONFIG_ARCH_KEEP_MEMBLOCK disabled like x86.
Following KASAN logs shows this case.
This patch fixes the xbc memory free problem by calling memblock_free()
in early xbc init error rewind path and calling memblock_free_late() in
xbc exit path to free memory to buddy allocator.
[ 9.410890] ==================================================================
[ 9.418962] BUG: KASAN: use-after-free in memblock_isolate_range+0x12d/0x260
[ 9.426850] Read of size 8 at addr ffff88845dd30000 by task swapper/0/1
[ 9.435901] CPU: 9 PID: 1 Comm: swapper/0 Tainted: G U 6.9.0-rc3-00208-g586b5dfb51b9 #5
[ 9.446403] Hardware name: Intel Corporation RPLP LP5 (CPU:RaptorLake)/RPLP LP5 (ID:13), BIOS IRPPN02.01.01.00.00.19.015.D-00000000 Dec 28 2023
[ 9.460789] Call Trace:
[ 9.463518] <TASK>
[ 9.465859] dump_stack_lvl+0x53/0x70
[ 9.469949] print_report+0xce/0x610
[ 9.473944] ? __virt_addr_valid+0xf5/0x1b0
[ 9.478619] ? memblock_isolate_range+0x12d/0x260
[ 9.483877] kasan_report+0xc6/0x100
[ 9.487870] ? memblock_isolate_range+0x12d/0x260
[ 9.493125] memblock_isolate_range+0x12d/0x260
[ 9.498187] memblock_phys_free+0xb4/0x160
[ 9.502762] ? __pfx_memblock_phys_free+0x10/0x10
[ 9.508021] ? mutex_unlock+0x7e/0xd0
[ 9.512111] ? __pfx_mutex_unlock+0x10/0x10
[ 9.516786] ? kernel_init_freeable+0x2d4/0x430
[ 9.521850] ? __pfx_kernel_init+0x10/0x10
[ 9.526426] xbc_exit+0x17/0x70
[ 9.529935] kernel_init+0x38/0x1e0
[ 9.533829] ? _raw_spin_unlock_irq+0xd/0x30
[ 9.538601] ret_from_fork+0x2c/0x50
[ 9.542596] ? __pfx_kernel_init+0x10/0x10
[ 9.547170] ret_from_fork_asm+0x1a/0x30
[ 9.551552] </TASK>
[ 9.555649] The buggy address belongs to the physical page:
[ 9.561875] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x45dd30
[ 9.570821] flags: 0x200000000000000(node=0|zone=2)
[ 9.576271] page_type: 0xffffffff()
[ 9.580167] raw: 0200000000000000 ffffea0011774c48 ffffea0012ba1848 0000000000000000
[ 9.588823] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
[ 9.597476] page dumped because: kasan: bad access detected
[ 9.605362] Memory state around the buggy address:
[ 9.610714] ffff88845dd2ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 9.618786] ffff88845dd2ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 9.626857] >ffff88845dd30000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 9.634930] ^
[ 9.638534] ffff88845dd30080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 9.646605] ffff88845dd30100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 9.654675] ==================================================================
Link: https://lore.kernel.org/all/20240414114944.1012359-1-qiang4.zhang@linux.intel.com/
Fixes: 40caa127f3c7 ("init: bootconfig: Remove all bootconfig data when the init memory is removed")
Cc: Stable@vger.kernel.org
Signed-off-by: Qiang Zhang <qiang4.zhang@intel.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"15 hotfixes. 9 are cc:stable and the remainder address post-6.8 issues
or aren't considered suitable for backporting.
There are a significant number of fixups for this cycle's page_owner
changes (series "page_owner: print stacks and their outstanding
allocations"). Apart from that, singleton changes all over, mainly in
MM"
* tag 'mm-hotfixes-stable-2024-04-18-14-41' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
nilfs2: fix OOB in nilfs_set_de_type
MAINTAINERS: update Naoya Horiguchi's email address
fork: defer linking file vma until vma is fully initialized
mm/shmem: inline shmem_is_huge() for disabled transparent hugepages
mm,page_owner: defer enablement of static branch
Squashfs: check the inode number is not the invalid value of zero
mm,swapops: update check in is_pfn_swap_entry for hwpoison entries
mm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled
mm/userfaultfd: allow hugetlb change protection upon poison entry
mm,page_owner: fix printing of stack records
mm,page_owner: fix accounting of pages when migrating
mm,page_owner: fix refcount imbalance
mm,page_owner: update metadata for tail pages
userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE
mm/madvise: make MADV_POPULATE_(READ|WRITE) handle VM_FAULT_RETRY properly
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In order to minimize code size (CONFIG_CC_OPTIMIZE_FOR_SIZE=y),
compiler might choose to make a regular function call (out-of-line) for
shmem_is_huge() instead of inlining it. When transparent hugepages are
disabled (CONFIG_TRANSPARENT_HUGEPAGE=n), it can cause compilation
error.
mm/shmem.c: In function `shmem_getattr':
./include/linux/huge_mm.h:383:27: note: in expansion of macro `BUILD_BUG'
383 | #define HPAGE_PMD_SIZE ({ BUILD_BUG(); 0; })
| ^~~~~~~~~
mm/shmem.c:1148:33: note: in expansion of macro `HPAGE_PMD_SIZE'
1148 | stat->blksize = HPAGE_PMD_SIZE;
To prevent the possible error, always inline shmem_is_huge() when
transparent hugepages are disabled.
Link: https://lkml.kernel.org/r/20240409155407.2322714-1-sumanthk@linux.ibm.com
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Tony reported that the Machine check recovery was broken in v6.9-rc1, as
he was hitting a VM_BUG_ON when injecting uncorrectable memory errors to
DRAM.
After some more digging and debugging on his side, he realized that this
went back to v6.1, with the introduction of 'commit 0d206b5d2e0d
("mm/swap: add swp_offset_pfn() to fetch PFN from swap entry")'. That
commit, among other things, introduced swp_offset_pfn(), replacing
hwpoison_entry_to_pfn() in its favour.
The patch also introduced a VM_BUG_ON() check for is_pfn_swap_entry(), but
is_pfn_swap_entry() never got updated to cover hwpoison entries, which
means that we would hit the VM_BUG_ON whenever we would call
swp_offset_pfn() for such entries on environments with CONFIG_DEBUG_VM
set. Fix this by updating the check to cover hwpoison entries as well,
and update the comment while we are it.
Link: https://lkml.kernel.org/r/20240407130537.16977-1-osalvador@suse.de
Fixes: 0d206b5d2e0d ("mm/swap: add swp_offset_pfn() to fetch PFN from swap entry")
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reported-by: Tony Luck <tony.luck@intel.com>
Closes: https://lore.kernel.org/all/Zg8kLSl2yAlA3o5D@agluck-desk3/
Tested-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: <stable@vger.kernel.org> [6.1.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"A little calmer than usual, probably just the timing of sub-tree PRs.
Including fixes from netfilter.
Current release - regressions:
- inet: bring NLM_DONE out to a separate recv() again, fix user space
which assumes multiple recv()s will happen and gets blocked forever
- drv: mlx5:
- restore mistakenly dropped parts in register devlink flow
- use channel mdev reference instead of global mdev instance for
coalescing
- acquire RTNL lock before RQs/SQs activation/deactivation
Previous releases - regressions:
- net: change maximum number of UDP segments to 128, fix virtio
compatibility with Windows peers
- usb: ax88179_178a: avoid writing the mac address before first
reading
Previous releases - always broken:
- sched: fix mirred deadlock on device recursion
- netfilter:
- br_netfilter: skip conntrack input hook for promisc packets
- fixes removal of duplicate elements in the pipapo set backend
- various fixes for abort paths and error handling
- af_unix: don't peek OOB data without MSG_OOB
- drv: flower: fix fragment flags handling in multiple drivers
- drv: ravb: fix jumbo frames and packet stats accounting
Misc:
- kselftest_harness: fix Clang warning about zero-length format
- tun: limit printing rate when illegal packet received by tun dev"
* tag 'net-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
net: ethernet: ti: am65-cpsw-nuss: cleanup DMA Channels before using them
net: usb: ax88179_178a: avoid writing the mac address before first reading
net: ravb: Fix RX byte accounting for jumbo packets
net: ravb: Fix GbEth jumbo packet RX checksum handling
net: ravb: Allow RX loop to move past DMA mapping errors
net: ravb: Count packets instead of descriptors in R-Car RX path
net: ethernet: mtk_eth_soc: fix WED + wifi reset
net:usb:qmi_wwan: support Rolling modules
selftests: kselftest_harness: fix Clang warning about zero-length format
net/sched: Fix mirred deadlock on device recursion
netfilter: nf_tables: fix memleak in map from abort path
netfilter: nf_tables: restore set elements when delete set fails
netfilter: nf_tables: missing iterator type in lookup walk
s390/ism: Properly fix receive message buffer allocation
net: dsa: mt7530: fix port mirroring for MT7988 SoC switch
net: dsa: mt7530: fix mirroring frames received on local port
tun: limit printing rate when illegal packet received by tun dev
ice: Fix checking for unsupported keys on non-tunnel device
ice: tc: allow zero flags in parsing tc flower
ice: tc: check src_vsi in case of traffic from VF
...
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When the mirred action is used on a classful egress qdisc and a packet is
mirrored or redirected to self we hit a qdisc lock deadlock.
See trace below.
[..... other info removed for brevity....]
[ 82.890906]
[ 82.890906] ============================================
[ 82.890906] WARNING: possible recursive locking detected
[ 82.890906] 6.8.0-05205-g77fadd89fe2d-dirty #213 Tainted: G W
[ 82.890906] --------------------------------------------
[ 82.890906] ping/418 is trying to acquire lock:
[ 82.890906] ffff888006994110 (&sch->q.lock){+.-.}-{3:3}, at:
__dev_queue_xmit+0x1778/0x3550
[ 82.890906]
[ 82.890906] but task is already holding lock:
[ 82.890906] ffff888006994110 (&sch->q.lock){+.-.}-{3:3}, at:
__dev_queue_xmit+0x1778/0x3550
[ 82.890906]
[ 82.890906] other info that might help us debug this:
[ 82.890906] Possible unsafe locking scenario:
[ 82.890906]
[ 82.890906] CPU0
[ 82.890906] ----
[ 82.890906] lock(&sch->q.lock);
[ 82.890906] lock(&sch->q.lock);
[ 82.890906]
[ 82.890906] *** DEADLOCK ***
[ 82.890906]
[..... other info removed for brevity....]
Example setup (eth0->eth0) to recreate
tc qdisc add dev eth0 root handle 1: htb default 30
tc filter add dev eth0 handle 1: protocol ip prio 2 matchall \
action mirred egress redirect dev eth0
Another example(eth0->eth1->eth0) to recreate
tc qdisc add dev eth0 root handle 1: htb default 30
tc filter add dev eth0 handle 1: protocol ip prio 2 matchall \
action mirred egress redirect dev eth1
tc qdisc add dev eth1 root handle 1: htb default 30
tc filter add dev eth1 handle 1: protocol ip prio 2 matchall \
action mirred egress redirect dev eth0
We fix this by adding an owner field (CPU id) to struct Qdisc set after
root qdisc is entered. When the softirq enters it a second time, if the
qdisc owner is the same CPU, the packet is dropped to break the loop.
Reported-by: Mingshuai Ren <renmingshuai@huawei.com>
Closes: https://lore.kernel.org/netdev/20240314111713.5979-1-renmingshuai@huawei.com/
Fixes: 3bcb846ca4cf ("net: get rid of spin_trylock() in net_tx_action()")
Fixes: e578d9c02587 ("net: sched: use counter to break reclassify loops")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Tested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20240415210728.36949-1-victor@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The commit fc8b2a619469
("net: more strict VIRTIO_NET_HDR_GSO_UDP_L4 validation")
adds check of potential number of UDP segments vs
UDP_MAX_SEGMENTS in linux/virtio_net.h.
After this change certification test of USO guest-to-guest
transmit on Windows driver for virtio-net device fails,
for example with packet size of ~64K and mss of 536 bytes.
In general the USO should not be more restrictive than TSO.
Indeed, in case of unreasonably small mss a lot of segments
can cause queue overflow and packet loss on the destination.
Limit of 128 segments is good for any practical purpose,
with minimal meaningful mss of 536 the maximal UDP packet will
be divided to ~120 segments.
The number of segments for UDP packets is validated vs
UDP_MAX_SEGMENTS also in udp.c (v4,v6), this does not affect
quest-to-guest path but does affect packets sent to host, for
example.
It is important to mention that UDP_MAX_SEGMENTS is kernel-only
define and not available to user mode socket applications.
In order to request MSS smaller than MTU the applications
just uses setsockopt with SOL_UDP and UDP_SEGMENT and there is
no limitations on socket API level.
Fixes: fc8b2a619469 ("net: more strict VIRTIO_NET_HDR_GSO_UDP_L4 validation")
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
netfilter pull request 24-04-11
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
Patches #1 and #2 add missing rcu read side lock when iterating over
expression and object type list which could race with module removal.
Patch #3 prevents promisc packet from visiting the bridge/input hook
to amend a recent fix to address conntrack confirmation race
in br_netfilter and nf_conntrack_bridge.
Patch #4 adds and uses iterate decorator type to fetch the current
pipapo set backend datastructure view when netlink dumps the
set elements.
Patch #5 fixes removal of duplicate elements in the pipapo set backend.
Patch #6 flowtable validates pppoe header before accessing it.
Patch #7 fixes flowtable datapath for pppoe packets, otherwise lookup
fails and pppoe packets follow classic path.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ensure there is sufficient room to access the protocol field of the
PPPoe header. Validate it once before the flowtable lookup, then use a
helper function to access protocol field.
Reported-by: syzbot+b6f07e1c07ef40199081@syzkaller.appspotmail.com
Fixes: 72efd585f714 ("netfilter: flowtable: add pppoe support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The generation mask can be updated while netlink dump is in progress.
The pipapo set backend walk iterator cannot rely on it to infer what
view of the datastructure is to be used. Add notation to specify if user
wants to read/update the set.
Based on patch from Florian Westphal.
Fixes: 2b84e215f874 ("netfilter: nft_set_pipapo: .walk does not deal with generations")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- use -ENOTSUPP consistently in Intel GPIO drivers
- don't include dt-bindings headers in gpio-swnode code
- add missing of device table to gpio-lpc32xx and fix autoloading
* tag 'gpio-fixes-for-v6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: swnode: Remove wrong header inclusion
gpio: lpc32xx: fix module autoloading
gpio: crystalcove: Use -ENOTSUPP consistently
gpio: wcove: Use -ENOTSUPP consistently
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The flags in the software node properties are supposed to be
the GPIO lookup flags, which are provided by gpio/machine.h,
as the software nodes are the kernel internal thing and doesn't
need to rely to any of ABIs.
Fixes: e7f9ff5dc90c ("gpiolib: add support for software nodes")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix a potential tracepoint crash
- Fix NFSv4 GETATTR on big-endian platforms
* tag 'nfsd-6.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
NFSD: fix endianness issue in nfsd4_encode_fattr4
SUNRPC: Fix rpcgss_context trace event acceptor field
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The rpcgss_context trace event acceptor field is a dynamically sized
string that records the "data" parameter. But this parameter is also
dependent on the "len" field to determine the size of the data.
It needs to use __string_len() helper macro where the length can be passed
in. It also incorrectly uses strncpy() to save it instead of
__assign_str(). As these macros can change, it is not wise to open code
them in trace events.
As of commit c759e609030c ("tracing: Remove __assign_str_len()"),
__assign_str() can be used for both __string() and __string_len() fields.
Before that commit, __assign_str_len() is required to be used. This needs
to be noted for backporting. (In actuality, commit c1fa617caeb0 ("tracing:
Rework __assign_str() and __string() to not duplicate getting the string")
is the commit that makes __string_str_len() obsolete).
Cc: stable@vger.kernel.org
Fixes: 0c77668ddb4e ("SUNRPC: Introduce trace points in rpc_auth_gss.ko")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
- Address a (valid) W=1 build warning
- Fix timer self-tests
- Annotate a KCSAN warning wrt. accesses to the tick_do_timer_cpu
global variable
- Address a !CONFIG_BUG build warning
* tag 'timers-urgent-2024-04-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests: kselftest: Fix build failure with NOLIBC
selftests: timers: Fix abs() warning in posix_timers test
selftests: kselftest: Mark functions that unconditionally call exit() as __noreturn
selftests: timers: Fix posix_timers ksft_print_msg() warning
selftests: timers: Fix valid-adjtimex signed left-shift undefined behavior
bug: Fix no-return-statement warning with !CONFIG_BUG
timekeeping: Use READ/WRITE_ONCE() for tick_do_timer_cpu
selftests/timers/posix_timers: Reimplement check_timer_distribution()
irqflags: Explicitly ignore lockdep_hrtimer_exit() argument
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BUG() does not return, and arch implementations of BUG() use unreachable()
or other non-returning code. However with !CONFIG_BUG, the default
implementation is often used instead, and that does not do that. x86 always
uses its own implementation, but powerpc with !CONFIG_BUG gives a build
error:
kernel/time/timekeeping.c: In function ‘timekeeping_debug_get_ns’:
kernel/time/timekeeping.c:286:1: error: no return statement in function
returning non-void [-Werror=return-type]
Add unreachable() to default !CONFIG_BUG BUG() implementation.
Fixes: e8e9d21a5df6 ("timekeeping: Refactor timekeeping helpers")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Link: https://lore.kernel.org/r/20240410153212.127477-1-adrian.hunter@intel.com
Closes: https://lore.kernel.org/all/CA+G9fYvjdZCW=7ZGxS6A_3bysjQ56YF7S-+PNLQ_8a4DKh1Bhg@mail.gmail.com/
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When building with 'make W=1' but CONFIG_TRACE_IRQFLAGS=n, the
unused argument to lockdep_hrtimer_exit() causes a warning:
kernel/time/hrtimer.c:1655:14: error: variable 'expires_in_hardirq' set but not used [-Werror=unused-but-set-variable]
This is intentional behavior, so add a cast to void to shut up the warning.
Fixes: 73d20564e0dc ("hrtimer: Don't dereference the hrtimer pointer after the callback")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240408074609.3170807-1-arnd@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202311191229.55QXHVc6-lkp@intel.com/
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Ingo Molnar:
"Fix a PREEMPT_RT build bug"
* tag 'locking-urgent-2024-04-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking: Make rwsem_assert_held_write_nolockdep() build with PREEMPT_RT=y
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The commit cited below broke the build for PREEMPT_RT because
rwsem_assert_held_write_nolockdep() passes a struct rw_semaphore but
rw_base_assert_held_write() expects struct rwbase_rt. Fixing the type alone
leads to the problem that WARN_ON() is not found because bug.h is missing.
In order to resolve this:
- Keep the assert (WARN_ON()) in rwsem.h (not rwbase_rt.h)
- Make rwsem_assert_held_write_nolockdep() do the implementation
specific (rw_base) writer check.
- Replace the "inline" with __always_inline which was used before.
Fixes: f70405afc99b1 ("locking: Add rwsem_assert_held() and rwsem_assert_held_write()")
Reported-by: Clark Williams <williams@redhat.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20240319182050.U4AzUF3I@linutronix.de
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Pull virtio bugfixes from Michael Tsirkin:
"Some small, obvious (in hindsight) bugfixes:
- new ioctl in vhost-vdpa has a wrong # - not too late to fix
- vhost has apparently been lacking an smp_rmb() - due to code
duplication :( The duplication will be fixed in the next merge
cycle, this is a minimal fix
- an error message in vhost talks about guest moving used index -
which of course never happens, guest only ever moves the available
index
- i2c-virtio didn't set the driver owner so it did not get refcounted
correctly"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: correct misleading printing information
vhost-vdpa: change ioctl # for VDPA_GET_VRING_SIZE
virtio: store owner from modules with register_virtio_driver()
vhost: Add smp_rmb() in vhost_enable_notify()
vhost: Add smp_rmb() in vhost_vq_avail_empty()
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VDPA_GET_VRING_SIZE by mistake uses the already occupied
ioctl # 0x80 and we never noticed - it happens to work
because the direction and size are different, but confuses
tools such as perf which like to look at just the number,
and breaks the extra robustness of the ioctl numbering macros.
To fix, sort the entries and renumber the ioctl - not too late
since it wasn't in any released kernels yet.
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Reported-by: Namhyung Kim <namhyung@kernel.org>
Fixes: 1496c47065f9 ("vhost-vdpa: uapi to support reporting per vq size")
Cc: "Zhu Lingshan" <lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <41c1c5489688abe5bfef9f7cf15584e3fb872ac5.1712092759.git.mst@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Zhu Lingshan <lingshan.zhu@intel.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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Modules registering driver with register_virtio_driver() might forget to
set .owner field. i2c-virtio.c for example has it missing. The field
is used by some other kernel parts for reference counting
(try_module_get()), so it is expected that drivers will set it.
Solve the problem by moving this task away from the drivers to the core
virtio code, just like we did for platform_driver in
commit 9447057eaff8 ("platform_device: use a macro instead of
platform_driver_register").
Fixes: 3cfc88380413 ("i2c: virtio: add a virtio i2c frontend driver")
Cc: "Jie Deng" <jie.deng@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-Id: <20240331-module-owner-virtio-v2-1-98f04bfaf46a@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Pull io_uring fixes from Jens Axboe:
- Fix for sigmask restoring while waiting for events (Alexey)
- Typo fix in comment (Haiyue)
- Fix for a msg_control retstore on SEND_ZC retries (Pavel)
* tag 'io_uring-6.9-20240412' of git://git.kernel.dk/linux:
io-uring: correct typo in comment for IOU_F_TWQ_LAZY_WAKE
io_uring/net: restore msg_control on sendzc retry
io_uring: Fix io_cqring_wait() not restoring sigmask on get_timespec64() failure
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The 'r' key is near to 't' key, that makes 'with' to be 'wirh' ? :)
Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Link: https://lore.kernel.org/r/20240409173531.846714-1-haiyue.wang@intel.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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