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Cong Wang says:
====================
flow_dissector: Fix handling of mixed port and port-range keys
This patchset contains two fixes for flow_dissector handling of mixed
port and port-range keys, for both tc-flower case and bpf case. Each
of them also comes with a selftest.
====================
Link: https://patch.msgid.link/20250218043210.732959-1-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After this patch:
#102/1 flow_dissector_classification/ipv4:OK
#102/2 flow_dissector_classification/ipv4_continue_dissect:OK
#102/3 flow_dissector_classification/ipip:OK
#102/4 flow_dissector_classification/gre:OK
#102/5 flow_dissector_classification/port_range:OK
#102/6 flow_dissector_classification/ipv6:OK
#102 flow_dissector_classification:OK
Summary: 1/6 PASSED, 0 SKIPPED, 0 FAILED
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://patch.msgid.link/20250218043210.732959-5-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix how port range keys are handled in __skb_flow_bpf_to_target() by:
- Separating PORTS and PORTS_RANGE key handling
- Using correct key_ports_range structure for range keys
- Properly initializing both key types independently
This ensures port range information is correctly stored in its dedicated
structure rather than incorrectly using the regular ports key structure.
Fixes: 59fb9b62fb6c ("flow_dissector: Fix to use new variables for port ranges in bpf hook")
Reported-by: Qiang Zhang <dtzq01@gmail.com>
Closes: https://lore.kernel.org/netdev/CAPx+-5uvFxkhkz4=j_Xuwkezjn9U6kzKTD5jz4tZ9msSJ0fOJA@mail.gmail.com/
Cc: Yoshiki Komachi <komachi.yoshiki@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://patch.msgid.link/20250218043210.732959-4-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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port-range
After this patch:
# ./tc_flower_port_range.sh
TEST: Port range matching - IPv4 UDP [ OK ]
TEST: Port range matching - IPv4 TCP [ OK ]
TEST: Port range matching - IPv6 UDP [ OK ]
TEST: Port range matching - IPv6 TCP [ OK ]
TEST: Port range matching - IPv4 UDP Drop [ OK ]
Cc: Qiang Zhang <dtzq01@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250218043210.732959-3-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch fixes a bug in TC flower filter where rules combining a
specific destination port with a source port range weren't working
correctly.
The specific case was when users tried to configure rules like:
tc filter add dev ens38 ingress protocol ip flower ip_proto udp \
dst_port 5000 src_port 2000-3000 action drop
The root cause was in the flow dissector code. While both
FLOW_DISSECTOR_KEY_PORTS and FLOW_DISSECTOR_KEY_PORTS_RANGE flags
were being set correctly in the classifier, the __skb_flow_dissect_ports()
function was only populating one of them: whichever came first in
the enum check. This meant that when the code needed both a specific
port and a port range, one of them would be left as 0, causing the
filter to not match packets as expected.
Fix it by removing the either/or logic and instead checking and
populating both key types independently when they're in use.
Fixes: 8ffb055beae5 ("cls_flower: Fix the behavior using port ranges with hw-offload")
Reported-by: Qiang Zhang <dtzq01@gmail.com>
Closes: https://lore.kernel.org/netdev/CAPx+-5uvFxkhkz4=j_Xuwkezjn9U6kzKTD5jz4tZ9msSJ0fOJA@mail.gmail.com/
Cc: Yoshiki Komachi <komachi.yoshiki@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250218043210.732959-2-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima says:
====================
gtp/geneve: Suppress list_del() splat during ->exit_batch_rtnl().
The common pattern in tunnel device's ->exit_batch_rtnl() is iterating
two netdev lists for each netns: (i) for_each_netdev() to clean up
devices in the netns, and (ii) the device type specific list to clean
up devices in other netns.
list_for_each_entry(net, net_list, exit_list) {
for_each_netdev_safe(net, dev, next) {
/* (i) call unregister_netdevice_queue(dev, list) */
}
list_for_each_entry_safe(xxx, xxx_next, &net->yyy, zzz) {
/* (ii) call unregister_netdevice_queue(xxx->dev, list) */
}
}
Then, ->exit_batch_rtnl() could touch the same device twice.
Say we have two netns A & B and device B that is created in netns A and
moved to netns B.
1. cleanup_net() processes netns A and then B.
2. ->exit_batch_rtnl() finds the device B while iterating netns A's (ii)
[ device B is not yet unlinked from netns B as
unregister_netdevice_many() has not been called. ]
3. ->exit_batch_rtnl() finds the device B while iterating netns B's (i)
gtp and geneve calls ->dellink() at 2. and 3. that calls list_del() for (ii)
and unregister_netdevice_queue().
Calling unregister_netdevice_queue() twice is fine because it uses
list_move_tail(), but the 2nd list_del() triggers a splat when
CONFIG_DEBUG_LIST is enabled.
Possible solution is either of
(a) Use list_del_init() in ->dellink()
(b) Iterate dev with empty ->unreg_list for (i) like
#define for_each_netdev_alive(net, d) \
list_for_each_entry(d, &(net)->dev_base_head, dev_list) \
if (list_empty(&d->unreg_list))
(c) Remove (i) and delegate it to default_device_exit_batch().
This series avoids the 2nd ->dellink() by (c) to suppress the splat for
gtp and geneve.
Note that IPv4/IPv6 tunnels calls just unregister_netdevice() during
->exit_batch_rtnl() and dev is unlinked from (ii) later in ->ndo_uninit(),
so they are safe.
Also, pfcp has the same pattern but is safe because
unregister_netdevice_many() is called for each netns.
====================
Link: https://patch.msgid.link/20250217203705.40342-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As explained in the previous patch, iterating for_each_netdev() and
gn->geneve_list during ->exit_batch_rtnl() could trigger ->dellink()
twice for the same device.
If CONFIG_DEBUG_LIST is enabled, we will see a list_del() corruption
splat in the 2nd call of geneve_dellink().
Let's remove for_each_netdev() in geneve_destroy_tunnels() and delegate
that part to default_device_exit_batch().
Fixes: 9593172d93b9 ("geneve: Fix use-after-free in geneve_find_dev().")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250217203705.40342-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Brad Spengler reported the list_del() corruption splat in
gtp_net_exit_batch_rtnl(). [0]
Commit eb28fd76c0a0 ("gtp: Destroy device along with udp socket's netns
dismantle.") added the for_each_netdev() loop in gtp_net_exit_batch_rtnl()
to destroy devices in each netns as done in geneve and ip tunnels.
However, this could trigger ->dellink() twice for the same device during
->exit_batch_rtnl().
Say we have two netns A & B and gtp device B that resides in netns B but
whose UDP socket is in netns A.
1. cleanup_net() processes netns A and then B.
2. gtp_net_exit_batch_rtnl() finds the device B while iterating
netns A's gn->gtp_dev_list and calls ->dellink().
[ device B is not yet unlinked from netns B
as unregister_netdevice_many() has not been called. ]
3. gtp_net_exit_batch_rtnl() finds the device B while iterating
netns B's for_each_netdev() and calls ->dellink().
gtp_dellink() cleans up the device's hash table, unlinks the dev from
gn->gtp_dev_list, and calls unregister_netdevice_queue().
Basically, calling gtp_dellink() multiple times is fine unless
CONFIG_DEBUG_LIST is enabled.
Let's remove for_each_netdev() in gtp_net_exit_batch_rtnl() and
delegate the destruction to default_device_exit_batch() as done
in bareudp.
[0]:
list_del corruption, ffff8880aaa62c00->next (autoslab_size_M_dev_P_net_core_dev_11127_8_1328_8_S_4096_A_64_n_139+0xc00/0x1000 [slab object]) is LIST_POISON1 (ffffffffffffff02) (prev is 0xffffffffffffff04)
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 UID: 0 PID: 1804 Comm: kworker/u8:7 Tainted: G T 6.12.13-grsec-full-20250211091339 #1
Tainted: [T]=RANDSTRUCT
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:[<ffffffff84947381>] __list_del_entry_valid_or_report+0x141/0x200 lib/list_debug.c:58
Code: c2 76 91 31 c0 e8 9f b1 f7 fc 0f 0b 4d 89 f0 48 c7 c1 02 ff ff ff 48 89 ea 48 89 ee 48 c7 c7 e0 c2 76 91 31 c0 e8 7f b1 f7 fc <0f> 0b 4d 89 e8 48 c7 c1 04 ff ff ff 48 89 ea 48 89 ee 48 c7 c7 60
RSP: 0018:fffffe8040b4fbd0 EFLAGS: 00010283
RAX: 00000000000000cc RBX: dffffc0000000000 RCX: ffffffff818c4054
RDX: ffffffff84947381 RSI: ffffffff818d1512 RDI: 0000000000000000
RBP: ffff8880aaa62c00 R08: 0000000000000001 R09: fffffbd008169f32
R10: fffffe8040b4f997 R11: 0000000000000001 R12: a1988d84f24943e4
R13: ffffffffffffff02 R14: ffffffffffffff04 R15: ffff8880aaa62c08
RBX: kasan shadow of 0x0
RCX: __wake_up_klogd.part.0+0x74/0xe0 kernel/printk/printk.c:4554
RDX: __list_del_entry_valid_or_report+0x141/0x200 lib/list_debug.c:58
RSI: vprintk+0x72/0x100 kernel/printk/printk_safe.c:71
RBP: autoslab_size_M_dev_P_net_core_dev_11127_8_1328_8_S_4096_A_64_n_139+0xc00/0x1000 [slab object]
RSP: process kstack fffffe8040b4fbd0+0x7bd0/0x8000 [kworker/u8:7+netns 1804 ]
R09: kasan shadow of process kstack fffffe8040b4f990+0x7990/0x8000 [kworker/u8:7+netns 1804 ]
R10: process kstack fffffe8040b4f997+0x7997/0x8000 [kworker/u8:7+netns 1804 ]
R15: autoslab_size_M_dev_P_net_core_dev_11127_8_1328_8_S_4096_A_64_n_139+0xc08/0x1000 [slab object]
FS: 0000000000000000(0000) GS:ffff888116000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000748f5372c000 CR3: 0000000015408000 CR4: 00000000003406f0 shadow CR4: 00000000003406f0
Stack:
0000000000000000 ffffffff8a0c35e7 ffffffff8a0c3603 ffff8880aaa62c00
ffff8880aaa62c00 0000000000000004 ffff88811145311c 0000000000000005
0000000000000001 ffff8880aaa62000 fffffe8040b4fd40 ffffffff8a0c360d
Call Trace:
<TASK>
[<ffffffff8a0c360d>] __list_del_entry_valid include/linux/list.h:131 [inline] fffffe8040b4fc28
[<ffffffff8a0c360d>] __list_del_entry include/linux/list.h:248 [inline] fffffe8040b4fc28
[<ffffffff8a0c360d>] list_del include/linux/list.h:262 [inline] fffffe8040b4fc28
[<ffffffff8a0c360d>] gtp_dellink+0x16d/0x360 drivers/net/gtp.c:1557 fffffe8040b4fc28
[<ffffffff8a0d0404>] gtp_net_exit_batch_rtnl+0x124/0x2c0 drivers/net/gtp.c:2495 fffffe8040b4fc88
[<ffffffff8e705b24>] cleanup_net+0x5a4/0xbe0 net/core/net_namespace.c:635 fffffe8040b4fcd0
[<ffffffff81754c97>] process_one_work+0xbd7/0x2160 kernel/workqueue.c:3326 fffffe8040b4fd88
[<ffffffff81757195>] process_scheduled_works kernel/workqueue.c:3407 [inline] fffffe8040b4fec0
[<ffffffff81757195>] worker_thread+0x6b5/0xfa0 kernel/workqueue.c:3488 fffffe8040b4fec0
[<ffffffff817782a0>] kthread+0x360/0x4c0 kernel/kthread.c:397 fffffe8040b4ff78
[<ffffffff814d8594>] ret_from_fork+0x74/0xe0 arch/x86/kernel/process.c:172 fffffe8040b4ffb8
[<ffffffff8110f509>] ret_from_fork_asm+0x29/0xc0 arch/x86/entry/entry_64.S:399 fffffe8040b4ffe8
</TASK>
Modules linked in:
Fixes: eb28fd76c0a0 ("gtp: Destroy device along with udp socket's netns dismantle.")
Reported-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250217203705.40342-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"18 hotfixes. 5 are cc:stable and the remainder address post-6.13
issues or aren't considered necessary for -stable kernels.
10 are for MM and 8 are for non-MM. All are singletons, please see the
changelogs for details"
* tag 'mm-hotfixes-stable-2025-02-19-17-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
test_xarray: fix failure in check_pause when CONFIG_XARRAY_MULTI is not defined
kasan: don't call find_vm_area() in a PREEMPT_RT kernel
MAINTAINERS: update Nick's contact info
selftests/mm: fix check for running THP tests
mm: hugetlb: avoid fallback for specific node allocation of 1G pages
memcg: avoid dead loop when setting memory.max
mailmap: update Nick's entry
mm: pgtable: fix incorrect reclaim of non-empty PTE pages
taskstats: modify taskstats version
getdelays: fix error format characters
mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize()
tools/mm: fix build warnings with musl-libc
mailmap: add entry for Feng Tang
.mailmap: add entries for Jeff Johnson
mm,madvise,hugetlb: check for 0-length range after end address adjustment
mm/zswap: fix inconsistency when zswap_store_page() fails
lib/iov_iter: fix import_iovec_ubuf iovec management
procfs: fix a locking bug in a vmcore_add_device_dump() error path
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We don't want to be holding the srcu lock while waiting on btree write
completions - easily fixed.
Reported-by: Janpieter Sollie <janpieter.sollie@edpnet.be>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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We had some error handling confusion here;
-BCH_ERR_missing_indirect_extent is thrown by
trans_trigger_reflink_p_segment(); at this point we haven't decide
whether we're generating an error.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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When not running in VHE mode, cpu_prepare_hyp_mode() computes the value
of TCR_EL2 using the host's TCR_EL1 settings as a starting point. For
nVHE, this amounts to masking out everything apart from the TG0, SH0,
ORGN0, IRGN0 and T0SZ fields before setting the RES1 bits, shifting the
IPS field down to the PS field and setting DS if LPA2 is enabled.
Unfortunately, for hVHE, things go slightly wonky: EPD1 is correctly set
to disable walks via TTBR1_EL2 but then the T1SZ and IPS fields are
corrupted when we mistakenly attempt to initialise the PS and DS fields
in their E2H=0 positions. Furthermore, many fields are retained from
TCR_EL1 which should not be propagated to TCR_EL2. Notably, this means
we can end up with A1 set despite not initialising TTBR1_EL2 at all.
This has been shown to cause unexpected translation faults at EL2 with
pKVM due to TLB invalidation not taking effect when running with a
non-zero ASID.
Fix the TCR_EL2 initialisation code to set PS and DS only when E2H=0,
masking out HD, HA and A1 when E2H=1.
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Fixes: ad744e8cb346 ("arm64: Allow arm64_sw.hvhe on command line")
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20250214133724.13179-1-will@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
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If the TLS handshake attempt returns -ETIMEDOUT, we currently translate
that error into -EACCES. This becomes problematic for cases where the RPC
layer is attempting to re-connect in paths that don't resonably handle
-EACCES, for example: writeback. The RPC layer can handle -ETIMEDOUT quite
well, however - so if the handshake returns this error let's just pass it
along.
Fixes: 75eb6af7acdf ("SUNRPC: Add a TCP-with-TLS RPC transport class")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
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If the file is sillyrenamed, and slated for delete on close, it is
possible for a server reboot to triggeer an open reclaim, with can again
race with the application call to close(). When that happens, the call
to put_nfs_open_context() can trigger a synchronous delegreturn call
which deadlocks because it is not marked as privileged.
Instead, ensure that the call to nfs4_inode_return_delegation_on_close()
catches the delegreturn, and schedules it asynchronously.
Reported-by: Li Lingfeng <lilingfeng3@huawei.com>
Fixes: adb4b42d19ae ("Return the delegation when deleting sillyrenamed files")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
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If rpc_signal_task() is called while a task is in an rpc_call_done()
callback function, and the latter calls rpc_restart_call(), the task can
end up looping due to the RPC_TASK_SIGNALLED flag being set without the
tk_rpc_status being set.
Removing the redundant mechanism for signalling the task fixes the
looping behaviour.
Reported-by: Li Lingfeng <lilingfeng3@huawei.com>
Fixes: 39494194f93b ("SUNRPC: Fix races with rpc_killall_tasks()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
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Adjust the timestamps if O_DIRECT is being combined with attribute
delegations.
Fixes: e12912d94137 ("NFSv4: Add support for delegated atime and mtime attributes")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
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While it is uncommon for delegations to be held while O_DIRECT writes
are in progress, it is possible. The xfstests generic/647 and
generic/729 both end up triggering that state, and end up failing due to
the fact that the file size is not adjusted.
Reported-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219738
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
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Move code forcing synchronous execution of multishot read requests out
a more generic __io_read().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4ad7b928c776d1ad59addb9fff64ef2d1fc474d5.1739919038.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Initialise ki_complete during request prep stage, we'll depend on it not
being reset during issue in the following patch.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/817624086bd5f0448b08c80623399919fda82f34.1739919038.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We want to avoid checking ->ki_complete directly in the io_uring
completion path. Fortunately we have only two callback the selection
of which depend on the ring constant flags, i.e. IOPOLL, so use that
to infer the function.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4eb4bdab8cbcf5bc87083f7047edc81e920ab83c.1739919038.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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At the moment we can't sanely handle queuing an async request from a
multishot context, so disable them. It shouldn't matter as pollable
files / socekts don't normally do async.
Patching it in __io_read() is not the cleanest way, but it's simpler
than other options, so let's fix it there and clean up on top.
Cc: stable@vger.kernel.org
Reported-by: chase xd <sl1589472800@gmail.com>
Fixes: fc68fcda04910 ("io_uring/rw: add support for IORING_OP_READ_MULTISHOT")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7d51732c125159d17db4fe16f51ec41b936973f8.1739919038.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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During disabling the transcoder in DP 128b/132b mode (both in case of an
MST master transcoder and in case of SST) the transcoder function must
be first disabled without changing any other field in the register (in
particular leaving the DDI port and mode select fields unchanged) and
clearing the DDI port and mode select fields separately, later during
the disabling sequences. Fix the sequence accordingly.
Bspec: 54128, 65448, 68849
Cc: Jani Nikula <jani.nikula@intel.com>
Fixes: 79a6734cd56e ("drm/i915/ddi: disable trancoder port select for 128b/132b SST")
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250217223828.1166093-3-imre.deak@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 2ed653c7b843db0670136330480842d76cb65cd8)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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At the end of a 128b/132b link training sequence, the HW expects the
transcoder training pattern to be set to TPS2 and from that to normal
mode (disabling the training pattern). Transitioning from TPS1 directly
to normal mode leaves the transcoder in a stuck state, resulting in
page-flip timeouts later in the modeset sequence.
Atm, in case of a failure during link training, the transcoder may be
still set to output the TPS1 pattern. Later the transcoder is then set
from TPS1 directly to normal mode in intel_dp_stop_link_train(), leading
to modeset failures later as described above. Fix this by setting the
training patter to TPS2, if the link training failed at any point.
The clue in the specification about the above HW behavior is the
explicit mention that TPS2 must be set after the link training sequence
(and there isn't a similar requirement specified for the 8b/10b link
training), see the Bspec links below.
v2: Add bspec aspect/link to the commit log. (Jani)
Bspec: 54128, 65448, 68849
Cc: stable@vger.kernel.org # v5.18+
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250217223828.1166093-2-imre.deak@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 8b4bbaf8ddc1f68f3ee96a706f65fdb1bcd9d355)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
|
|
Error handling was wrong, causing unhandled transaction restart errors.
check_directory_size() was also inefficient, since keys in multiple
snapshots would be iterated over once for every snapshot. Convert it to
the same scheme used for i_sectors and subdir count checking.
Cc: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
When compiling without CONFIG_IA32_EMULATION, there can be some errors:
drivers/accel/amdxdna/amdxdna_mailbox.c: In function ‘mailbox_release_msg’:
drivers/accel/amdxdna/amdxdna_mailbox.c:197:2: error: implicit declaration
of function ‘kfree’.
197 | kfree(mb_msg);
| ^~~~~
drivers/accel/amdxdna/amdxdna_mailbox.c: In function ‘xdna_mailbox_send_msg’:
drivers/accel/amdxdna/amdxdna_mailbox.c:418:11: error:implicit declaration
of function ‘kzalloc’.
418 | mb_msg = kzalloc(sizeof(*mb_msg) + pkg_size, GFP_KERNEL);
| ^~~~~~~
Add the missing include.
Fixes: b87f920b9344 ("accel/amdxdna: Support hardware mailbox")
Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211015354.3388171-1-suhui@nfschina.com
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The issue was caused by dput(upper) being called before
ovl_dentry_update_reval(), while upper->d_flags was still
accessed in ovl_dentry_remote().
Move dput(upper) after its last use to prevent use-after-free.
BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
ovl_dentry_remote fs/overlayfs/util.c:162 [inline]
ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167
ovl_link_up fs/overlayfs/copy_up.c:610 [inline]
ovl_copy_up_one+0x2105/0x3490 fs/overlayfs/copy_up.c:1170
ovl_copy_up_flags+0x18d/0x200 fs/overlayfs/copy_up.c:1223
ovl_rename+0x39e/0x18c0 fs/overlayfs/dir.c:1136
vfs_rename+0xf84/0x20a0 fs/namei.c:4893
...
</TASK>
Fixes: b07d5cc93e1b ("ovl: update of dentry revalidate flags after copy up")
Reported-by: syzbot+316db8a1191938280eb6@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=316db8a1191938280eb6
Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org>
Link: https://lore.kernel.org/r/20250214215148.761147-1-kovalev@altlinux.org
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
|
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directory nodes
If the reparse point was not handled (indicated by the -EOPNOTSUPP from
ops->parse_reparse_point() call) but reparse tag is of type name surrogate
directory type, then treat is as a new mount point.
Name surrogate reparse point represents another named entity in the system.
From SMB client point of view, this another entity is resolved on the SMB
server, and server serves its content automatically. Therefore from Linux
client point of view, this name surrogate reparse point of directory type
crosses mount point.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
|
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parse_reparse_point()
This would help to track and detect by caller if the reparse point type was
processed or not.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
|
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POSIX extensions
If a file size has bits 0x410 = ATTR_DIRECTORY | ATTR_REPARSE set
then during queryinfo (stat) the file is regarded as a directory
and subsequent opens can fail. A simple test example is trying
to open any file 1040 bytes long when mounting with "posix"
(SMB3.1.1 POSIX/Linux Extensions).
The cause of this bug is that Attributes field in smb2_file_all_info
struct occupies the same place that EndOfFile field in
smb311_posix_qinfo, and sometimes the latter struct is incorrectly
processed as if it was the first one.
Reported-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
Tested-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
|
|
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
So, in order to avoid ending up with flexible-array members in the
middle of other structs, we use the `__struct_group()` helper to
separate the flexible arrays from the rest of the members in the
flexible structures. We then use the newly created tagged `struct
smb2_file_link_info_hdr` and `struct smb2_file_rename_info_hdr`
to replace the type of the objects causing trouble: `rename_info`
and `link_info` in `struct smb2_compound_vars`.
We also want to ensure that when new members need to be added to the
flexible structures, they are always included within the newly created
tagged structs. For this, we use `static_assert()`. This ensures that the
memory layout for both the flexible structure and the new tagged struct
is the same after any changes.
So, with these changes, fix 86 of the following warnings:
fs/smb/client/cifsglob.h:2335:36: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/smb/client/cifsglob.h:2334:38: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Due to job transitions, both Joel and Jeremy can no longer maintain
the FSI subsystem. I will take over.
I also replaced Alistair with Ninad as a reviewer, as Alistair doesn't
have access to hardware and hasn't been active.
I also removed the link to Joel's FSI tree as he won't be maintaining
it.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Link: https://lore.kernel.org/r/20250213225746.2159118-1-eajames@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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IO_NODE_ALLOC_CACHE_MAX has been unused since commit fbbb8e991d86
("io_uring/rsrc: get rid of io_rsrc_node allocation cache") removed the
rsrc_node_cache.
IO_RSRC_TAG_TABLE_SHIFT and IO_RSRC_TAG_TABLE_MASK have been unused
since commit 7029acd8a950 ("io_uring/rsrc: get rid of per-ring
io_rsrc_node list") removed the separate tag table for registered nodes.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Li Zetao <lizetao1@huawei.com>
Link: https://lore.kernel.org/r/20250219033444.2020136-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This allows ntsync to be usuable by non-root processes out of the box
Signed-off-by: Mike Lothian <mike@fireburn.co.uk>
Reviewed-by: Elizabeth Figura <zfigura@codeweavers.com>
Link: https://lore.kernel.org/r/20250214122759.2629-2-mike@fireburn.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
There are multiple places from where the recovery work gets scheduled
asynchronously. Also, there are multiple places where the caller waits
synchronously for the recovery to be completed. One such place is during
the PM shutdown() callback.
If the device is not alive during recovery_work, it will try to reset the
device using pci_reset_function(). This function internally will take the
device_lock() first before resetting the device. By this time, if the lock
has already been acquired, then recovery_work will get stalled while
waiting for the lock. And if the lock was already acquired by the caller
which waits for the recovery_work to be completed, it will lead to
deadlock.
This is what happened on the X1E80100 CRD device when the device died
before shutdown() callback. Driver core calls the driver's shutdown()
callback while holding the device_lock() leading to deadlock.
And this deadlock scenario can occur on other paths as well, like during
the PM suspend() callback, where the driver core would hold the
device_lock() before calling driver's suspend() callback. And if the
recovery_work was already started, it could lead to deadlock. This is also
observed on the X1E80100 CRD.
So to fix both issues, use pci_try_reset_function() in recovery_work. This
function first checks for the availability of the device_lock() before
trying to reset the device. If the lock is available, it will acquire it
and reset the device. Otherwise, it will return -EAGAIN. If that happens,
recovery_work will fail with the error message "Recovery failed" as not
much could be done.
Cc: stable@vger.kernel.org # 5.12
Reported-by: Johan Hovold <johan@kernel.org>
Closes: https://lore.kernel.org/mhi/Z1me8iaK7cwgjL92@hovoldconsulting.com
Fixes: 7389337f0a78 ("mhi: pci_generic: Add suspend/resume/recovery procedure")
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Analyzed-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/mhi/Z2KKjWY2mPen6GPL@hovoldconsulting.com/
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/20250108-mhi_recovery_fix-v1-1-a0a00a17da46@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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It is observed that on some systems an initial PPM reset during the boot
phase can trigger a timeout:
[ 6.482546] ucsi_acpi USBC000:00: failed to reset PPM!
[ 6.482551] ucsi_acpi USBC000:00: error -ETIMEDOUT: PPM init failed
Still, increasing the timeout value, albeit being the most straightforward
solution, eliminates the problem: the initial PPM reset may take up to
~8000-10000ms on some Lenovo laptops. When it is reset after the above
period of time (or even if ucsi_reset_ppm() is not called overall), UCSI
works as expected.
Moreover, if the ucsi_acpi module is loaded/unloaded manually after the
system has booted, reading the CCI values and resetting the PPM works
perfectly, without any timeout. Thus it's only a boot-time issue.
The reason for this behavior is not clear but it may be the consequence
of some tricks that the firmware performs or be an actual firmware bug.
As a workaround, increase the timeout to avoid failing the UCSI
initialization prematurely.
Fixes: b1b59e16075f ("usb: typec: ucsi: Increase command completion timeout value")
Cc: stable <stable@kernel.org>
Signed-off-by: Fedor Pchelkin <boddah8794@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250217105442.113486-3-boddah8794@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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For the ACPI backend of UCSI the UCSI "registers" are just a memory copy
of the register values in an opregion. The ACPI implementation in the
BIOS ensures that the opregion contents are synced to the embedded
controller and it ensures that the registers (in particular CCI) are
synced back to the opregion on notifications. While there is an ACPI call
that syncs the actual registers to the opregion there is rarely a need to
do this and on some ACPI implementations it actually breaks in various
interesting ways.
The only reason to force a sync from the embedded controller is to poll
CCI while notifications are disabled. Only the ucsi core knows if this
is the case and guessing based on the current command is suboptimal, i.e.
leading to the following spurious assertion splat:
WARNING: CPU: 3 PID: 76 at drivers/usb/typec/ucsi/ucsi.c:1388 ucsi_reset_ppm+0x1b4/0x1c0 [typec_ucsi]
CPU: 3 UID: 0 PID: 76 Comm: kworker/3:0 Not tainted 6.12.11-200.fc41.x86_64 #1
Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN45WW 03/17/2023
Workqueue: events_long ucsi_init_work [typec_ucsi]
RIP: 0010:ucsi_reset_ppm+0x1b4/0x1c0 [typec_ucsi]
Call Trace:
<TASK>
ucsi_init_work+0x3c/0xac0 [typec_ucsi]
process_one_work+0x179/0x330
worker_thread+0x252/0x390
kthread+0xd2/0x100
ret_from_fork+0x34/0x50
ret_from_fork_asm+0x1a/0x30
</TASK>
Thus introduce a ->poll_cci() method that works like ->read_cci() with an
additional forced sync and document that this should be used when polling
with notifications disabled. For all other backends that presumably don't
have this issue use the same implementation for both methods.
Fixes: fa48d7e81624 ("usb: typec: ucsi: Do not call ACPI _DSM method for UCSI read operations")
Cc: stable <stable@kernel.org>
Signed-off-by: Christian A. Ehrhardt <lk@c--e.de>
Tested-by: Fedor Pchelkin <boddah8794@gmail.com>
Signed-off-by: Fedor Pchelkin <boddah8794@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250217105442.113486-2-boddah8794@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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During probe, the TCPC alert interrupts are getting masked to
avoid unwanted interrupts during chip setup: this is ok to do
but there is no unmasking happening at any later time, which
means that the chip will not raise any interrupt, essentially
making it not functional as, while internally it does perform
all of the intended functions, it won't signal anything to the
outside.
Unmask the alert interrupts to fix functionality.
Fixes: ce08eaeb6388 ("staging: typec: rt1711h typec chip driver")
Cc: stable <stable@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250219114700.41700-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the USB gadget will be set as bus-powered based solely
on whether its bMaxPower is greater than 100mA, but this may miss
devices that may legitimately draw less than 100mA but still want
to report as bus-powered. Similarly during suspend & resume, USB
gadget is incorrectly marked as bus/self powered without checking
the bmAttributes field. Fix these by configuring the USB gadget
as self or bus powered based on bmAttributes, and explicitly set
it as bus-powered if it draws more than 100mA.
Cc: stable <stable@kernel.org>
Fixes: 5e5caf4fa8d3 ("usb: gadget: composite: Inform controller driver of self-powered")
Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250217120328.2446639-1-prashanth.k@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently while UDC suspends, u_ether attempts to remote wakeup
the host if there are any pending transfers. However, if remote
wakeup fails, the UDC remains suspended but the is_suspend flag
is not set. And since is_suspend flag isn't set, the subsequent
eth_start_xmit() would queue USB requests to suspended UDC.
To fix this, bail out from gether_suspend() only if remote wakeup
operation is successful.
Cc: stable <stable@kernel.org>
Fixes: 0a1af6dfa077 ("usb: gadget: f_ecm: Add suspend/resume and remote wakeup support")
Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250212100840.3812153-1-prashanth.k@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Syzbot once again identified a flaw in usb endpoint checking, see [1].
This time the issue stems from a commit authored by me (2eabb655a968
("usb: atm: cxacru: fix endpoint checking in cxacru_bind()")).
While using usb_find_common_endpoints() may usually be enough to
discard devices with wrong endpoints, in this case one needs more
than just finding and identifying the sufficient number of endpoints
of correct types - one needs to check the endpoint's address as well.
Since cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind,
switch the endpoint verification approach to usb_check_XXX_endpoints()
instead to fix incomplete ep testing.
[1] Syzbot report:
usb 5-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503
...
RIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503
...
Call Trace:
<TASK>
cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649
cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline]
cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223
usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058
cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377
usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396
really_probe+0x2b9/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
...
Reported-and-tested-by: syzbot+ccbbc229a024fa3e13b5@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=ccbbc229a024fa3e13b5
Fixes: 2eabb655a968 ("usb: atm: cxacru: fix endpoint checking in cxacru_bind()")
Cc: stable@kernel.org
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Link: https://lore.kernel.org/r/20250213122259.730772-1-n.zhandarovich@fintech.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The _CRS ACPI resources table has 2 entries for the host wakeup GPIO,
the first one being a regular GpioIo () resource while the second one
is a GpioInt () resource for the same pin.
The acpi_gpio_mapping table used by vsc-tp.c maps the first Gpio ()
resource to "wakeuphost-gpios" where as the second GpioInt () entry
is mapped to "wakeuphostint-gpios".
Using "wakeuphost" to request the GPIO as was done until now, means
that the gpiolib-acpi code does not know that the GPIO is active-low
as that info is only available in the GpioInt () entry.
Things were still working before due to the following happening:
1. Since the 2 entries point to the same pin they share a struct gpio_desc
2. The SPI core creates the SPI device vsc-tp.c binds to and calls
acpi_dev_gpio_irq_get(). This does use the second entry and sets
FLAG_ACTIVE_LOW in gpio_desc.flags .
3. vsc_tp_probe() requests the "wakeuphost" GPIO and inherits the
active-low flag set by acpi_dev_gpio_irq_get()
But there is a possible scenario where things do not work:
1. - 3. happen as above
4. After requesting the "wakeuphost" GPIO, the "resetfw" GPIO is requested
next, but its USB GPIO controller is not available yet, so this call
returns -EPROBE_DEFER.
5. The gpio_desc for "wakeuphost" is put() and during this the active-low
flag is cleared from gpio_desc.flags .
6. Later on vsc_tp_probe() requests the "wakeuphost" GPIO again, but now it
is not marked active-low.
The difference can also be seen in /sys/kernel/debug/gpio, which contains
the following line for this GPIO:
gpio-535 ( |wakeuphost ) in hi IRQ ACTIVE LOW
If the second scenario is hit the "ACTIVE LOW" at the end disappears and
things do not work.
Fix this by requesting the GPIO through the "wakeuphostint" mapping instead
which provides active-low info without relying on acpi_dev_gpio_irq_get()
pre-populating this info in the gpio_desc.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2316918
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Tested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device")
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20250214212425.84021-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Add Panther Lake P device id.
Cc: stable <stable@kernel.org>
Co-developed-by: Tomas Winkler <tomasw@gmail.com>
Signed-off-by: Tomas Winkler <tomasw@gmail.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://lore.kernel.org/r/20250209110550.1582982-1-alexander.usyskin@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/fixes
Fix writes on SST flashes
Commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write
operation to `sst_nor_write_data()`") introduced a bug where only one
byte of data is written, regardless of the number of bytes requested.
This causes the driver to use the incorrect write size for flashes using
the SST byte programming, and to spit out a warning.
# -----BEGIN PGP SIGNATURE-----
#
# iIoEABYIADIWIQQTlUWNzXGEo3bFmyIR4drqP028CQUCZ7NEiBQccHJhdHl1c2hA
# a2VybmVsLm9yZwAKCRAR4drqP028CTVnAP9krBOLfmlYO94PntaDscgjcehnxbuF
# PEQby8/KlEnX0gEA5K73/0oQIZUnHQ98E6ntAtKoYD5zGNAJaYDpw+66CAU=
# =5xea
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 17 Feb 2025 03:15:36 PM CET
# gpg: using EDDSA key 1395458DCD7184A376C59B2211E1DAEA3F4DBC09
# gpg: issuer "pratyush@kernel.org"
# gpg: Good signature from "Pratyush Yadav <p.yadav@ti.com>" [expired]
# gpg: aka "Pratyush Yadav <me@yadavpratyush.com>" [expired]
# gpg: issuer "pratyush@kernel.org" does not match any User ID
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 805C 3923 2FBE 108C 49E1 663C F650 3556 C11B 1CCD
# Subkey fingerprint: 1395 458D CD71 84A3 76C5 9B22 11E1 DAEA 3F4D BC09
|
|
Add NULL check before variable dereference to fix static checker warning.
Fixes: d76d22b5096c ("mtd: rawnand: cadence: use dma_map_resource for sdma address")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/e448a22c-bada-448d-9167-7af71305130d@stanley.mountain/
Signed-off-by: Niravkumar L Rabara <niravkumar.l.rabara@intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
|
|
I was pondering with myself for a while if I should just make it official
that I'm not really involved in the kernel community anymore, neither as a
reviewer, nor as a maintainer.
Most of the time I simply excused myself with "if something urgent comes
up, I can chime in and help out". Lyude and Danilo are doing a wonderful
job and I've put all my trust into them.
However, there is one thing I can't stand and it's hurting me the most.
I'm convinced, no, my core believe is, that inclusivity and respect,
working with others as equals, no power plays involved, is how we should
work together within the Free and Open Source community.
I can understand maintainers needing to learn, being concerned on
technical points. Everybody deserves the time to understand and learn. It
is my true belief that most people are capable of change eventually. I
truly believe this community can change from within, however this doesn't
mean it's going to be a smooth process.
The moment I made up my mind about this was reading the following words
written by a maintainer within the kernel community:
"we are the thin blue line"
This isn't okay. This isn't creating an inclusive environment. This isn't
okay with the current political situation especially in the US. A
maintainer speaking those words can't be kept. No matter how important
or critical or relevant they are. They need to be removed until they
learn. Learn what those words mean for a lot of marginalized people. Learn
about what horrors it evokes in their minds.
I can't in good faith remain to be part of a project and its community
where those words are tolerated. Those words are not technical, they are
a political statement. Even if unintentionally, such words carry power,
they carry meanings one needs to be aware of. They do cause an immense
amount of harm.
I wish the best of luck for everybody to continue to try to work from
within. You got my full support and I won't hold it against anybody trying
to improve the community, it's a thankless job, it's a lot of work. People
will continue to burn out.
I got burned out enough by myself caring about the bits I maintained, but
eventually I had to realize my limits. The obligation I felt was eating me
from inside. It stopped being fun at some point and I reached a point
where I simply couldn't continue the work I was so motivated doing as I've
did in the early days.
Please respect my wishes and put this statement as is into the tree.
Leaving anything out destroys its entire meaning.
Respectfully
Karol
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250215073753.1217002-2-kherbst@redhat.com
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Most kernel configs enable multiple Tegra SoC generations, causing this
typo to go unnoticed. But in the case where a kernel config is strictly
for Tegra186, this is a problem.
Fixes: 989863d7cbe5 ("drm/nouveau/pmu: select implementation based on available firmware")
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250218-nouveau-gm10b-guard-v2-1-a4de71500d48@gmail.com
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The system can experience a random crash a few minutes after the driver is
removed. This issue occurs due to improper handling of memory freeing in
the ishtp_hid_remove() function.
The function currently frees the `driver_data` directly within the loop
that destroys the HID devices, which can lead to accessing freed memory.
Specifically, `hid_destroy_device()` uses `driver_data` when it calls
`hid_ishtp_set_feature()` to power off the sensor, so freeing
`driver_data` beforehand can result in accessing invalid memory.
This patch resolves the issue by storing the `driver_data` in a temporary
variable before calling `hid_destroy_device()`, and then freeing the
`driver_data` after the device is destroyed.
Fixes: 0b28cb4bcb17 ("HID: intel-ish-hid: ISH HID client driver")
Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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During the `rmmod` operation for the `intel_ishtp_hid` driver, a
use-after-free issue can occur in the hid_ishtp_cl_remove() function.
The function hid_ishtp_cl_deinit() is called before ishtp_hid_remove(),
which can lead to accessing freed memory or resources during the
removal process.
Call Trace:
? ishtp_cl_send+0x168/0x220 [intel_ishtp]
? hid_output_report+0xe3/0x150 [hid]
hid_ishtp_set_feature+0xb5/0x120 [intel_ishtp_hid]
ishtp_hid_request+0x7b/0xb0 [intel_ishtp_hid]
hid_hw_request+0x1f/0x40 [hid]
sensor_hub_set_feature+0x11f/0x190 [hid_sensor_hub]
_hid_sensor_power_state+0x147/0x1e0 [hid_sensor_trigger]
hid_sensor_runtime_resume+0x22/0x30 [hid_sensor_trigger]
sensor_hub_remove+0xa8/0xe0 [hid_sensor_hub]
hid_device_remove+0x49/0xb0 [hid]
hid_destroy_device+0x6f/0x90 [hid]
ishtp_hid_remove+0x42/0x70 [intel_ishtp_hid]
hid_ishtp_cl_remove+0x6b/0xb0 [intel_ishtp_hid]
ishtp_cl_device_remove+0x4a/0x60 [intel_ishtp]
...
Additionally, ishtp_hid_remove() is a HID level power off, which should
occur before the ISHTP level disconnect.
This patch resolves the issue by reordering the calls in
hid_ishtp_cl_remove(). The function ishtp_hid_remove() is now
called before hid_ishtp_cl_deinit().
Fixes: f645a90e8ff7 ("HID: intel-ish-hid: ishtp-hid-client: use helper functions for connection")
Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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As reported by the kernel test robot, the following warning occurs:
>> drivers/hid/hid-google-hammer.c:261:36: warning: 'cbas_ec_acpi_ids' defined but not used [-Wunused-const-variable=]
261 | static const struct acpi_device_id cbas_ec_acpi_ids[] = {
| ^~~~~~~~~~~~~~~~
The 'cbas_ec_acpi_ids' array is only used when CONFIG_ACPI is enabled.
Wrapping its definition and 'MODULE_DEVICE_TABLE' in '#ifdef CONFIG_ACPI'
prevents a compiler warning when ACPI is disabled.
Fixes: eb1aac4c8744f75 ("HID: google: add support tablet mode switch for Whiskers")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501201141.jctFH5eB-lkp@intel.com/
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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This fixes the button event map to match the 3-button recommendation
as well as the redundant 'z' in the button map events for the Sega
MD/Gen 6 Button.
Signed-off-by: Ryan McClelland <rymcclel@gmail.com>
Reviewed-by: Daniel J. Ogorchock <djogorchock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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