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- New AMD processor will support different input/output for same command.
- In some scenarios the input value is not cleared, which will be added to
output before reporting the data.
- Clearing input explicitly will be a cleaner and safer approach.
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Signed-off-by: Akshay Gupta <akshay.gupta@amd.com>
Link: https://lore.kernel.org/r/20250716110729.2193725-3-akshay.gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Smatch warnings are reported for below commit,
Commit bb13a84ed6b7 ("misc: amd-sbi: Add support for CPUID protocol")
from Apr 28, 2025 (linux-next), leads to the following Smatch static
checker warning:
drivers/misc/amd-sbi/rmi-core.c:376 apml_rmi_reg_xfer() warn: maybe return -EFAULT instead of the bytes remaining?
drivers/misc/amd-sbi/rmi-core.c:394 apml_mailbox_xfer() warn: maybe return -EFAULT instead of the bytes remaining?
drivers/misc/amd-sbi/rmi-core.c:411 apml_cpuid_xfer() warn: maybe return -EFAULT instead of the bytes remaining?
drivers/misc/amd-sbi/rmi-core.c:428 apml_mcamsr_xfer() warn: maybe return -EFAULT instead of the bytes remaining?
copy_to/from_user() returns number of bytes, not copied.
In case data not copied, return "-EFAULT".
Additionally, fixes the "-EPROTOTYPE" error return as intended.
Fixes: 35ac2034db72 ("misc: amd-sbi: Add support for AMD_SBI IOCTL")
Fixes: bb13a84ed6b7 ("misc: amd-sbi: Add support for CPUID protocol")
Fixes: 69b1ba83d21c ("misc: amd-sbi: Add support for read MCA register protocol")
Fixes: cf141287b774 ("misc: amd-sbi: Add support for register xfer")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aDVyO8ByVsceybk9@stanley.mountain/
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Signed-off-by: Akshay Gupta <akshay.gupta@amd.com>
Link: https://lore.kernel.org/r/20250716110729.2193725-2-akshay.gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Smatch warnings are reported for below commit,
Commit bb13a84ed6b7 ("misc: amd-sbi: Add support for CPUID protocol")
from Apr 28, 2025 (linux-next), leads to the following Smatch static
checker warning:
drivers/misc/amd-sbi/rmi-core.c:132 rmi_cpuid_read() warn: bitwise OR is zero '0xffffffff00000000 & 0xffff'
drivers/misc/amd-sbi/rmi-core.c:132 rmi_cpuid_read() warn: potential integer overflow from user 'msg->cpu_in_out << 32'
drivers/misc/amd-sbi/rmi-core.c:213 rmi_mca_msr_read() warn: bitwise OR is zero '0xffffffff00000000 & 0xffff'
drivers/misc/amd-sbi/rmi-core.c:213 rmi_mca_msr_read() warn: potential integer overflow from user 'msg->mcamsr_in_out << 32'
CPUID & MCAMSR thread data from input is available at byte 4 & 5, this
patch fixes to copy the user data correctly in the argument.
Previously, CPUID and MCAMSR data is return only for thread 0.
Fixes: bb13a84ed6b7 ("misc: amd-sbi: Add support for CPUID protocol")
Fixes: 69b1ba83d21c ("misc: amd-sbi: Add support for read MCA register protocol")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aDVyO8ByVsceybk9@stanley.mountain/
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Signed-off-by: Akshay Gupta <akshay.gupta@amd.com>
Link: https://lore.kernel.org/r/20250716110729.2193725-1-akshay.gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In `waveform_common_attach()`, the two timers `&devpriv->ai_timer` and
`&devpriv->ao_timer` are initialized after the allocation of the device
private data by `comedi_alloc_devpriv()` and the subdevices by
`comedi_alloc_subdevices()`. The function may return with an error
between those function calls. In that case, `waveform_detach()` will be
called by the Comedi core to clean up. The check that
`waveform_detach()` uses to decide whether to delete the timers is
incorrect. It only checks that the device private data was allocated,
but that does not guarantee that the timers were initialized. It also
needs to check that the subdevices were allocated. Fix it.
Fixes: 73e0e4dfed4c ("staging: comedi: comedi_test: fix timer lock-up")
Cc: stable@vger.kernel.org # 6.15+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250708130627.21743-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some Comedi subdevice instruction handlers are known to access
instruction data elements beyond the first `insn->n` elements in some
cases. The `do_insn_ioctl()` and `do_insnlist_ioctl()` functions
allocate at least `MIN_SAMPLES` (16) data elements to deal with this,
but they do not initialize all of that. For Comedi instruction codes
that write to the subdevice, the first `insn->n` data elements are
copied from user-space, but the remaining elements are left
uninitialized. That could be a problem if the subdevice instruction
handler reads the uninitialized data. Ensure that the first
`MIN_SAMPLES` elements are initialized before calling these instruction
handlers, filling the uncopied elements with 0. For
`do_insnlist_ioctl()`, the same data buffer elements are used for
handling a list of instructions, so ensure the first `MIN_SAMPLES`
elements are initialized for each instruction that writes to the
subdevice.
Fixes: ed9eccbe8970 ("Staging: add comedi core")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707161439.88385-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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For Comedi `INSN_READ` and `INSN_WRITE` instructions on "digital"
subdevices (subdevice types `COMEDI_SUBD_DI`, `COMEDI_SUBD_DO`, and
`COMEDI_SUBD_DIO`), it is common for the subdevice driver not to have
`insn_read` and `insn_write` handler functions, but to have an
`insn_bits` handler function for handling Comedi `INSN_BITS`
instructions. In that case, the subdevice's `insn_read` and/or
`insn_write` function handler pointers are set to point to the
`insn_rw_emulate_bits()` function by `__comedi_device_postconfig()`.
For `INSN_WRITE`, `insn_rw_emulate_bits()` currently assumes that the
supplied `data[0]` value is a valid copy from user memory. It will at
least exist because `do_insnlist_ioctl()` and `do_insn_ioctl()` in
"comedi_fops.c" ensure at lease `MIN_SAMPLES` (16) elements are
allocated. However, if `insn->n` is 0 (which is allowable for
`INSN_READ` and `INSN_WRITE` instructions, then `data[0]` may contain
uninitialized data, and certainly contains invalid data, possibly from a
different instruction in the array of instructions handled by
`do_insnlist_ioctl()`. This will result in an incorrect value being
written to the digital output channel (or to the digital input/output
channel if configured as an output), and may be reflected in the
internal saved state of the channel.
Fix it by returning 0 early if `insn->n` is 0, before reaching the code
that accesses `data[0]`. Previously, the function always returned 1 on
success, but it is supposed to be the number of data samples actually
read or written up to `insn->n`, which is 0 in this case.
Reported-by: syzbot+cb96ec476fb4914445c9@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=cb96ec476fb4914445c9
Fixes: ed9eccbe8970 ("Staging: add comedi core")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707153355.82474-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When checking for a supported IRQ number, the following test is used:
/* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */
if ((1 << it->options[1]) & 0x8cec) {
However, `it->options[i]` is an unchecked `int` value from userspace, so
the shift amount could be negative or out of bounds. Fix the test by
requiring `it->options[1]` to be within bounds before proceeding with
the original test. Valid `it->options[1]` values that select the IRQ
will be in the range [1,15]. The value 0 explicitly disables the use of
interrupts.
Fixes: 79e5e6addbb1 ("staging: comedi: das6402: rewrite broken driver")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707135737.77448-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When checking for a supported IRQ number, the following test is used:
if ((1 << it->options[1]) & 0xdcfc) {
However, `it->options[i]` is an unchecked `int` value from userspace, so
the shift amount could be negative or out of bounds. Fix the test by
requiring `it->options[1]` to be within bounds before proceeding with
the original test. Valid `it->options[1]` values that select the IRQ
will be in the range [1,15]. The value 0 explicitly disables the use of
interrupts.
Fixes: ad7a370c8be4 ("staging: comedi: aio_iiro_16: add command support for change of state detection")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707134622.75403-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When checking for a supported IRQ number, the following test is used:
if ((1 << it->options[1]) & board->irq_bits) {
However, `it->options[i]` is an unchecked `int` value from userspace, so
the shift amount could be negative or out of bounds. Fix the test by
requiring `it->options[1]` to be within bounds before proceeding with
the original test. Valid `it->options[1]` values that select the IRQ
will be in the range [1,15]. The value 0 explicitly disables the use of
interrupts.
Reported-by: syzbot+32de323b0addb9e114ff@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=32de323b0addb9e114ff
Fixes: fcdb427bc7cf ("Staging: comedi: add pcl821 driver")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707133429.73202-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When checking for a supported IRQ number, the following test is used:
/* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */
if ((1 << it->options[1]) & 0xdcfc) {
However, `it->options[i]` is an unchecked `int` value from userspace, so
the shift amount could be negative or out of bounds. Fix the test by
requiring `it->options[1]` to be within bounds before proceeding with
the original test.
Reported-by: syzbot+c52293513298e0fd9a94@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=c52293513298e0fd9a94
Fixes: 729988507680 ("staging: comedi: das16m1: tidy up the irq support in das16m1_attach()")
Tested-by: syzbot+c52293513298e0fd9a94@syzkaller.appspotmail.com
Suggested-by: "Enju, Kohei" <enjuk@amazon.co.jp>
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707130908.70758-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Correct some left shifts of the signed integer constant 1 by some
unsigned number less than 32. Change the constant to 1U to avoid
shifting a 1 into the sign bit.
The corrected functions are comedi_dio_insn_config(),
comedi_dio_update_state(), and __comedi_device_postconfig().
Fixes: e523c6c86232 ("staging: comedi: drivers: introduce comedi_dio_insn_config()")
Fixes: 05e60b13a36b ("staging: comedi: drivers: introduce comedi_dio_update_state()")
Fixes: 09567cb4373e ("staging: comedi: initialize subdevice s->io_bits in postconfig")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707121555.65424-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to
hold the array of `struct comedi_insn`, getting the length from the
`n_insns` member of the `struct comedi_insnlist` supplied by the user.
The allocation will fail with a WARNING and a stack dump if it is too
large.
Avoid that by failing with an `-EINVAL` error if the supplied `n_insns`
value is unreasonable.
Define the limit on the `n_insns` value in the `MAX_INSNS` macro. Set
this to the same value as `MAX_SAMPLES` (65536), which is the maximum
allowed sum of the values of the member `n` in the array of `struct
comedi_insn`, and sensible comedi instructions will have an `n` of at
least 1.
Reported-by: syzbot+d6995b62e5ac7d79557a@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d6995b62e5ac7d79557a
Fixes: ed9eccbe8970 ("Staging: add comedi core")
Tested-by: Ian Abbott <abbotti@mev.co.uk>
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250704120405.83028-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The lockdep tool can report a circular lock dependency warning in the loop
driver's AIO read/write path:
```
[ 6540.587728] kworker/u96:5/72779 is trying to acquire lock:
[ 6540.593856] ff110001b5968440 (sb_writers#9){.+.+}-{0:0}, at: loop_process_work+0x11a/0xf70 [loop]
[ 6540.603786]
[ 6540.603786] but task is already holding lock:
[ 6540.610291] ff110001b5968440 (sb_writers#9){.+.+}-{0:0}, at: loop_process_work+0x11a/0xf70 [loop]
[ 6540.620210]
[ 6540.620210] other info that might help us debug this:
[ 6540.627499] Possible unsafe locking scenario:
[ 6540.627499]
[ 6540.634110] CPU0
[ 6540.636841] ----
[ 6540.639574] lock(sb_writers#9);
[ 6540.643281] lock(sb_writers#9);
[ 6540.646988]
[ 6540.646988] *** DEADLOCK ***
```
This patch fixes the issue by using the AIO-specific helpers
`kiocb_start_write()` and `kiocb_end_write()`. These functions are
designed to be used with a `kiocb` and manage write sequencing
correctly for asynchronous I/O without introducing the problematic
lock dependency.
The `kiocb` is already part of the `loop_cmd` struct, so this change
also simplifies the completion function `lo_rw_aio_do_completion()` by
using the `iocb` from the `cmd` struct directly, instead of retrieving
the loop device from the request queue.
Fixes: 39d86db34e41 ("loop: add file_start_write() and file_end_write()")
Cc: Changhui Zhong <czhong@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250716114808.3159657-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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- Added a handler in DRM buddy manager to reset the cleared
flag for the blocks in the freelist.
- This is necessary because, upon resuming, the VRAM becomes
cluttered with BIOS data, yet the VRAM backend manager
believes that everything has been cleared.
v2:
- Add lock before accessing drm_buddy_clear_reset_blocks()(Matthew Auld)
- Force merge the two dirty blocks.(Matthew Auld)
- Add a new unit test case for this issue.(Matthew Auld)
- Having this function being able to flip the state either way would be
good. (Matthew Brost)
v3(Matthew Auld):
- Do merge step first to avoid the use of extra reset flag.
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Cc: stable@vger.kernel.org
Fixes: a68c7eaa7a8f ("drm/amdgpu: Enable clear page functionality")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3812
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250716075125.240637-2-Arunpravin.PaneerSelvam@amd.com
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A new warning in clang [1] points out that id_reg is uninitialized then
passed to memstick_init_req() as a const pointer:
drivers/memstick/core/memstick.c:330:59: error: variable 'id_reg' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer]
330 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, &id_reg,
| ^~~~~~
Commit de182cc8e882 ("drivers/memstick/core/memstick.c: avoid -Wnonnull
warning") intentionally passed this variable uninitialized to avoid an
-Wnonnull warning from a NULL value that was previously there because
id_reg is never read from the call to memstick_init_req() in
h_memstick_read_dev_id(). Just zero initialize id_reg to avoid the
warning, which is likely happening in the majority of builds using
modern compilers that support '-ftrivial-auto-var-init=zero'.
Cc: stable@vger.kernel.org
Fixes: de182cc8e882 ("drivers/memstick/core/memstick.c: avoid -Wnonnull warning")
Link: https://github.com/llvm/llvm-project/commit/00dacf8c22f065cb52efb14cd091d441f19b319e [1]
Closes: https://github.com/ClangBuiltLinux/linux/issues/2105
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250715-memstick-fix-uninit-const-pointer-v1-1-f6753829c27a@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The ovpn_netdev_write() function is responsible for injecting
decapsulated and decrypted packets back into the local network stack.
Prior to this patch, the skb could retain GSO metadata from the outer,
encrypted tunnel packet. This original GSO metadata, relevant to the
sender's transport context, becomes invalid and misleading for the
tunnel/data path once the inner packet is exposed.
Leaving this stale metadata intact causes internal GSO validation checks
further down the kernel's network stack (validate_xmit_skb()) to fail,
leading to packet drops. The reasons for these failures vary by
protocol, for example:
- for ICMP, no offload handler is registered;
- for TCP and UDP, the respective offload handlers return errors when
comparing skb->len to the outdated skb_shinfo(skb)->gso_size.
By calling skb_gso_reset(skb) we ensure the inner packet is presented to
gro_cells_receive() with a clean state, correctly indicating it is an
individual packet from the perspective of the local stack.
This change eliminates the "Driver has suspect GRO implementation, TCP
performance may be compromised" warning and improves overall TCP
performance by allowing GSO/GRO to function as intended on the
decapsulated traffic.
Fixes: 11851cbd60ea ("ovpn: implement TCP transport")
Reported-by: Gert Doering <gert@greenie.muc.de>
Closes: https://github.com/OpenVPN/ovpn-net-next/issues/4
Tested-by: Gert Doering <gert@greenie.muc.de>
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
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Netlink ops do not expect all attributes to be always set, however
this condition is not explicitly coded any where, leading the user
to believe that all sent attributes are somewhat processed.
Fix this behaviour by introducing explicit checks.
For CMD_OVPN_PEER_GET and CMD_OVPN_KEY_GET directly open-code the
needed condition in the related ops handlers.
While for all other ops use attribute subsets in the ovpn.yaml spec file.
Fixes: b7a63391aa98 ("ovpn: add basic netlink support")
Reported-by: Ralf Lici <ralf@mandelbit.com>
Closes: https://github.com/OpenVPN/ovpn-net-next/issues/19
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
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OpenVPN allows users to configure a FW mark on sockets used to
communicate with other peers. The mark is set by means of the
`SO_MARK` Linux socket option.
However, in the ovpn UDP code path, the socket's `sk_mark` value is
currently ignored and it is not propagated to outgoing `skbs`.
This commit ensures proper inheritance of the field by setting
`skb->mark` to `sk->sk_mark` before handing the `skb` to the network
stack for transmission.
Fixes: 08857b5ec5d9 ("ovpn: implement basic TX path (UDP)")
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Link: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg31877.html
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
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Hub driver warm-resets ports in SS.Inactive or Compliance mode to
recover a possible connected device. The port reset code correctly
detects if a connection is lost during reset, but hub driver
port_event() fails to take this into account in some cases.
port_event() ends up using stale values and assumes there is a
connected device, and will try all means to recover it, including
power-cycling the port.
Details:
This case was triggered when xHC host was suspended with DbC (Debug
Capability) enabled and connected. DbC turns one xHC port into a simple
usb debug device, allowing debugging a system with an A-to-A USB debug
cable.
xhci DbC code disables DbC when xHC is system suspended to D3, and
enables it back during resume.
We essentially end up with two hosts connected to each other during
suspend, and, for a short while during resume, until DbC is enabled back.
The suspended xHC host notices some activity on the roothub port, but
can't train the link due to being suspended, so xHC hardware sets a CAS
(Cold Attach Status) flag for this port to inform xhci host driver that
the port needs to be warm reset once xHC resumes.
CAS is xHCI specific, and not part of USB specification, so xhci driver
tells usb core that the port has a connection and link is in compliance
mode. Recovery from complinace mode is similar to CAS recovery.
xhci CAS driver support that fakes a compliance mode connection was added
in commit 8bea2bd37df0 ("usb: Add support for root hub port status CAS")
Once xHCI resumes and DbC is enabled back, all activity on the xHC
roothub host side port disappears. The hub driver will anyway think
port has a connection and link is in compliance mode, and hub driver
will try to recover it.
The port power-cycle during recovery seems to cause issues to the active
DbC connection.
Fix this by clearing connect_change flag if hub_port_reset() returns
-ENOTCONN, thus avoiding the whole unnecessary port recovery and
initialization attempt.
Cc: stable@vger.kernel.org
Fixes: 8bea2bd37df0 ("usb: Add support for root hub port status CAS")
Tested-by: Łukasz Bartosik <ukaszb@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20250623133947.3144608-1-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Most of the users of vchiq_shutdown ignore the return value,
which is bad because this could lead to resource leaks.
So instead of changing all calls to vchiq_shutdown, it's easier
to make vchiq_shutdown never fail.
Fixes: 71bad7f08641 ("staging: add bcm2708 vchiq driver")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20250715161108.3411-4-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The commit 86bc88217006 ("staging: vchiq_arm: Create keep-alive thread
during probe") introduced a regression for certain configurations,
which doesn't have a VCHIQ user. This results in a unused and hanging
keep-alive thread:
INFO: task vchiq-keep/0:85 blocked for more than 120 seconds.
Not tainted 6.12.34-v8-+ #13
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:vchiq-keep/0 state:D stack:0 pid:85 tgid:85 ppid:2
Call trace:
__switch_to+0x188/0x230
__schedule+0xa54/0xb28
schedule+0x80/0x120
schedule_preempt_disabled+0x30/0x50
kthread+0xd4/0x1a0
ret_from_fork+0x10/0x20
Fixes: 86bc88217006 ("staging: vchiq_arm: Create keep-alive thread during probe")
Reported-by: Maíra Canal <mcanal@igalia.com>
Closes: https://lore.kernel.org/linux-staging/ba35b960-a981-4671-9f7f-060da10feaa1@usp.br/
Cc: stable@kernel.org
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20250715161108.3411-3-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The commit 3e5def4249b9 ("staging: vchiq_arm: Improve initial VCHIQ connect")
based on the assumption that in good case the VCHIQ connect always happen and
therefore the keep-alive thread is guaranteed to be woken up. This is wrong,
because in certain configurations there are no VCHIQ users and so the VCHIQ
connect never happen. So revert it.
Fixes: 3e5def4249b9 ("staging: vchiq_arm: Improve initial VCHIQ connect")
Reported-by: Maíra Canal <mcanal@igalia.com>
Closes: https://lore.kernel.org/linux-staging/ba35b960-a981-4671-9f7f-060da10feaa1@usp.br/
Cc: stable@kernel.org
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20250715161108.3411-2-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Multicast good packets received by PF rings that pass ethternet MAC
address filtering are counted for rtnl_link_stats64.multicast. The
counter is not cleared on read. Fix the duplicate counting on updating
statistics.
Fixes: 46b92e10d631 ("net: libwx: support hardware statistics")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/DA229A4F58B70E51+20250714015656.91772-1-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When device reset is triggered by feature changes such as toggling Rx
VLAN offload, wx->do_reset() is called to reinitialize Rx rings. The
hardware descriptor ring may retain stale values from previous sessions.
And only set the length to 0 in rx_desc[0] would result in building
malformed SKBs. Fix it to ensure a clean slate after device reset.
[ 549.186435] [ C16] ------------[ cut here ]------------
[ 549.186457] [ C16] kernel BUG at net/core/skbuff.c:2814!
[ 549.186468] [ C16] Oops: invalid opcode: 0000 [#1] SMP NOPTI
[ 549.186472] [ C16] CPU: 16 UID: 0 PID: 0 Comm: swapper/16 Kdump: loaded Not tainted 6.16.0-rc4+ #23 PREEMPT(voluntary)
[ 549.186476] [ C16] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024
[ 549.186478] [ C16] RIP: 0010:__pskb_pull_tail+0x3ff/0x510
[ 549.186484] [ C16] Code: 06 f0 ff 4f 34 74 7b 4d 8b 8c 24 c8 00 00 00 45 8b 84 24 c0 00 00 00 e9 c8 fd ff ff 48 c7 44 24 08 00 00 00 00 e9 5e fe ff ff <0f> 0b 31 c0 e9 23 90 5b ff 41 f7 c6 ff 0f 00 00 75 bf 49 8b 06 a8
[ 549.186487] [ C16] RSP: 0018:ffffb391c0640d70 EFLAGS: 00010282
[ 549.186490] [ C16] RAX: 00000000fffffff2 RBX: ffff8fe7e4d40200 RCX: 00000000fffffff2
[ 549.186492] [ C16] RDX: ffff8fe7c3a4bf8e RSI: 0000000000000180 RDI: ffff8fe7c3a4bf40
[ 549.186494] [ C16] RBP: ffffb391c0640da8 R08: ffff8fe7c3a4c0c0 R09: 000000000000000e
[ 549.186496] [ C16] R10: ffffb391c0640d88 R11: 000000000000000e R12: ffff8fe7e4d40200
[ 549.186497] [ C16] R13: 00000000fffffff2 R14: ffff8fe7fa01a000 R15: 00000000fffffff2
[ 549.186499] [ C16] FS: 0000000000000000(0000) GS:ffff8fef5ae40000(0000) knlGS:0000000000000000
[ 549.186502] [ C16] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 549.186503] [ C16] CR2: 00007f77d81d6000 CR3: 000000051a032000 CR4: 0000000000750ef0
[ 549.186505] [ C16] PKRU: 55555554
[ 549.186507] [ C16] Call Trace:
[ 549.186510] [ C16] <IRQ>
[ 549.186513] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5
[ 549.186517] [ C16] __skb_pad+0xc7/0xf0
[ 549.186523] [ C16] wx_clean_rx_irq+0x355/0x3b0 [libwx]
[ 549.186533] [ C16] wx_poll+0x92/0x120 [libwx]
[ 549.186540] [ C16] __napi_poll+0x28/0x190
[ 549.186544] [ C16] net_rx_action+0x301/0x3f0
[ 549.186548] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5
[ 549.186551] [ C16] ? __raw_spin_lock_irqsave+0x1e/0x50
[ 549.186554] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5
[ 549.186557] [ C16] ? wake_up_nohz_cpu+0x35/0x160
[ 549.186559] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5
[ 549.186563] [ C16] handle_softirqs+0xf9/0x2c0
[ 549.186568] [ C16] __irq_exit_rcu+0xc7/0x130
[ 549.186572] [ C16] common_interrupt+0xb8/0xd0
[ 549.186576] [ C16] </IRQ>
[ 549.186577] [ C16] <TASK>
[ 549.186579] [ C16] asm_common_interrupt+0x22/0x40
[ 549.186582] [ C16] RIP: 0010:cpuidle_enter_state+0xc2/0x420
[ 549.186585] [ C16] Code: 00 00 e8 11 0e 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 0d ed 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d
[ 549.186587] [ C16] RSP: 0018:ffffb391c0277e78 EFLAGS: 00000246
[ 549.186590] [ C16] RAX: ffff8fef5ae40000 RBX: 0000000000000003 RCX: 0000000000000000
[ 549.186591] [ C16] RDX: 0000007fde0faac5 RSI: ffffffff826e53f6 RDI: ffffffff826fa9b3
[ 549.186593] [ C16] RBP: ffff8fe7c3a20800 R08: 0000000000000002 R09: 0000000000000000
[ 549.186595] [ C16] R10: 0000000000000000 R11: 000000000000ffff R12: ffffffff82ed7a40
[ 549.186596] [ C16] R13: 0000007fde0faac5 R14: 0000000000000003 R15: 0000000000000000
[ 549.186601] [ C16] ? cpuidle_enter_state+0xb3/0x420
[ 549.186605] [ C16] cpuidle_enter+0x29/0x40
[ 549.186609] [ C16] cpuidle_idle_call+0xfd/0x170
[ 549.186613] [ C16] do_idle+0x7a/0xc0
[ 549.186616] [ C16] cpu_startup_entry+0x25/0x30
[ 549.186618] [ C16] start_secondary+0x117/0x140
[ 549.186623] [ C16] common_startup_64+0x13e/0x148
[ 549.186628] [ C16] </TASK>
Fixes: 3c47e8ae113a ("net: libwx: Support to receive packets in NAPI")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250714024755.17512-4-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The wx_rx_buffer structure contained two DMA address fields: 'dma' and
'page_dma'. However, only 'page_dma' was actually initialized and used
to program the Rx descriptor. But 'dma' was uninitialized and used in
some paths.
This could lead to undefined behavior, including DMA errors or
use-after-free, if the uninitialized 'dma' was used. Althrough such
error has not yet occurred, it is worth fixing in the code.
Fixes: 3c47e8ae113a ("net: libwx: Support to receive packets in NAPI")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250714024755.17512-3-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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page_pool_put_full_page() should only be invoked when freeing Rx buffers
or building a skb if the size is too short. At other times, the pages
need to be reused. So remove the redundant page put. In the original
code, double free pages cause kernel panic:
[ 876.949834] __irq_exit_rcu+0xc7/0x130
[ 876.949836] common_interrupt+0xb8/0xd0
[ 876.949838] </IRQ>
[ 876.949838] <TASK>
[ 876.949840] asm_common_interrupt+0x22/0x40
[ 876.949841] RIP: 0010:cpuidle_enter_state+0xc2/0x420
[ 876.949843] Code: 00 00 e8 d1 1d 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 cd fc 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d
[ 876.949844] RSP: 0018:ffffaa7340267e78 EFLAGS: 00000246
[ 876.949845] RAX: ffff9e3f135be000 RBX: 0000000000000002 RCX: 0000000000000000
[ 876.949846] RDX: 000000cc2dc4cb7c RSI: ffffffff89ee49ae RDI: ffffffff89ef9f9e
[ 876.949847] RBP: ffff9e378f940800 R08: 0000000000000002 R09: 00000000000000ed
[ 876.949848] R10: 000000000000afc8 R11: ffff9e3e9e5a9b6c R12: ffffffff8a6d8580
[ 876.949849] R13: 000000cc2dc4cb7c R14: 0000000000000002 R15: 0000000000000000
[ 876.949852] ? cpuidle_enter_state+0xb3/0x420
[ 876.949855] cpuidle_enter+0x29/0x40
[ 876.949857] cpuidle_idle_call+0xfd/0x170
[ 876.949859] do_idle+0x7a/0xc0
[ 876.949861] cpu_startup_entry+0x25/0x30
[ 876.949862] start_secondary+0x117/0x140
[ 876.949864] common_startup_64+0x13e/0x148
[ 876.949867] </TASK>
[ 876.949868] ---[ end trace 0000000000000000 ]---
[ 876.949869] ------------[ cut here ]------------
[ 876.949870] list_del corruption, ffffead40445a348->next is NULL
[ 876.949873] WARNING: CPU: 14 PID: 0 at lib/list_debug.c:52 __list_del_entry_valid_or_report+0x67/0x120
[ 876.949875] Modules linked in: snd_hrtimer(E) bnep(E) binfmt_misc(E) amdgpu(E) squashfs(E) vfat(E) loop(E) fat(E) amd_atl(E) snd_hda_codec_realtek(E) intel_rapl_msr(E) snd_hda_codec_generic(E) intel_rapl_common(E) snd_hda_scodec_component(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) edac_mce_amd(E) snd_intel_dspcfg(E) snd_hda_codec(E) snd_hda_core(E) amdxcp(E) kvm_amd(E) snd_hwdep(E) gpu_sched(E) drm_panel_backlight_quirks(E) cec(E) snd_pcm(E) drm_buddy(E) snd_seq_dummy(E) drm_ttm_helper(E) btusb(E) kvm(E) snd_seq_oss(E) btrtl(E) ttm(E) btintel(E) snd_seq_midi(E) btbcm(E) drm_exec(E) snd_seq_midi_event(E) i2c_algo_bit(E) snd_rawmidi(E) bluetooth(E) drm_suballoc_helper(E) irqbypass(E) snd_seq(E) ghash_clmulni_intel(E) sha512_ssse3(E) drm_display_helper(E) aesni_intel(E) snd_seq_device(E) rfkill(E) snd_timer(E) gf128mul(E) drm_client_lib(E) drm_kms_helper(E) snd(E) i2c_piix4(E) joydev(E) soundcore(E) wmi_bmof(E) ccp(E) k10temp(E) i2c_smbus(E) gpio_amdpt(E) i2c_designware_platform(E) gpio_generic(E) sg(E)
[ 876.949914] i2c_designware_core(E) sch_fq_codel(E) parport_pc(E) drm(E) ppdev(E) lp(E) parport(E) fuse(E) nfnetlink(E) ip_tables(E) ext4 crc16 mbcache jbd2 sd_mod sfp mdio_i2c i2c_core txgbe ahci ngbe pcs_xpcs libahci libwx r8169 phylink libata realtek ptp pps_core video wmi
[ 876.949933] CPU: 14 UID: 0 PID: 0 Comm: swapper/14 Kdump: loaded Tainted: G W E 6.16.0-rc2+ #20 PREEMPT(voluntary)
[ 876.949935] Tainted: [W]=WARN, [E]=UNSIGNED_MODULE
[ 876.949936] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024
[ 876.949936] RIP: 0010:__list_del_entry_valid_or_report+0x67/0x120
[ 876.949938] Code: 00 00 00 48 39 7d 08 0f 85 a6 00 00 00 5b b8 01 00 00 00 5d 41 5c e9 73 0d 93 ff 48 89 fe 48 c7 c7 a0 31 e8 89 e8 59 7c b3 ff <0f> 0b 31 c0 5b 5d 41 5c e9 57 0d 93 ff 48 89 fe 48 c7 c7 c8 31 e8
[ 876.949940] RSP: 0018:ffffaa73405d0c60 EFLAGS: 00010282
[ 876.949941] RAX: 0000000000000000 RBX: ffffead40445a348 RCX: 0000000000000000
[ 876.949942] RDX: 0000000000000105 RSI: 0000000000000001 RDI: 00000000ffffffff
[ 876.949943] RBP: 0000000000000000 R08: 000000010006dfde R09: ffffffff8a47d150
[ 876.949944] R10: ffffffff8a47d150 R11: 0000000000000003 R12: dead000000000122
[ 876.949945] R13: ffff9e3e9e5af700 R14: ffffead40445a348 R15: ffff9e3e9e5af720
[ 876.949946] FS: 0000000000000000(0000) GS:ffff9e3f135be000(0000) knlGS:0000000000000000
[ 876.949947] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 876.949948] CR2: 00007fa58b480048 CR3: 0000000156724000 CR4: 0000000000750ef0
[ 876.949949] PKRU: 55555554
[ 876.949950] Call Trace:
[ 876.949951] <IRQ>
[ 876.949952] __rmqueue_pcplist+0x53/0x2c0
[ 876.949955] alloc_pages_bulk_noprof+0x2e0/0x660
[ 876.949958] __page_pool_alloc_pages_slow+0xa9/0x400
[ 876.949961] page_pool_alloc_pages+0xa/0x20
[ 876.949963] wx_alloc_rx_buffers+0xd7/0x110 [libwx]
[ 876.949967] wx_clean_rx_irq+0x262/0x430 [libwx]
[ 876.949971] wx_poll+0x92/0x130 [libwx]
[ 876.949975] __napi_poll+0x28/0x190
[ 876.949977] net_rx_action+0x301/0x3f0
[ 876.949980] ? srso_alias_return_thunk+0x5/0xfbef5
[ 876.949981] ? profile_tick+0x30/0x70
[ 876.949983] ? srso_alias_return_thunk+0x5/0xfbef5
[ 876.949984] ? srso_alias_return_thunk+0x5/0xfbef5
[ 876.949986] ? timerqueue_add+0xa3/0xc0
[ 876.949988] ? srso_alias_return_thunk+0x5/0xfbef5
[ 876.949989] ? __raise_softirq_irqoff+0x16/0x70
[ 876.949991] ? srso_alias_return_thunk+0x5/0xfbef5
[ 876.949993] ? srso_alias_return_thunk+0x5/0xfbef5
[ 876.949994] ? wx_msix_clean_rings+0x41/0x50 [libwx]
[ 876.949998] handle_softirqs+0xf9/0x2c0
Fixes: 3c47e8ae113a ("net: libwx: Support to receive packets in NAPI")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250714024755.17512-2-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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callback
get_time_fn() callback implementations are expected to fill out the
entire system_counterval_t struct as it may be initially uninitialized.
This broke with the removal of convert_art_to_tsc() helper functions
which left use_nsecs uninitialized.
Initially assign the entire struct with default values.
Fixes: f5e1d0db3f02 ("stmmac: intel: Remove convert_art_to_tsc()")
Cc: stable@vger.kernel.org
Signed-off-by: Markus Blöchl <markus@blochl.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250713-stmmac_crossts-v1-1-31bfe051b5cb@blochl.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2025-07-15
Brett Werling's patch for the tcan4x5x glue code driver fixes the
detection of chips which are held in reset/sleep and must be woken up
by GPIO prior to communication.
* tag 'linux-can-fixes-for-6.16-20250715' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: tcan4x5x: fix reset gpio usage during probe
====================
Link: https://patch.msgid.link/20250715101625.3202690-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The driver checks for having three endpoints and
having bulk in and out endpoints, but not that
the third endpoint is interrupt input.
Rectify the omission.
Reported-by: syzbot+3f89ec3d1d0842e95d50@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-usb/686d5a9f.050a0220.1ffab7.0017.GAE@google.com/
Tested-by: syzbot+3f89ec3d1d0842e95d50@syzkaller.appspotmail.com
Fixes: eb4fd8cd355c8 ("net/usb: add sierra_net.c driver")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20250714111326.258378-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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pf->ice_debugfs_pf_fwlog should be checked for an error here.
Fixes: 96a9a9341cda ("ice: configure FW logging")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The function ice_lag_is_switchdev_running() is being called from outside of
the LAG event handler code. This results in the lag->upper_netdev being
NULL sometimes. To avoid a NULL-pointer dereference, there needs to be a
check before it is dereferenced.
Fixes: 776fe19953b0 ("ice: block default rule setting on LAG interface")
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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With large values of CONFIG_NR_CPUS, three Intel ethernet drivers fail to
compile like:
In function ‘i40e_free_q_vector’,
inlined from ‘i40e_vsi_alloc_q_vectors’ at drivers/net/ethernet/intel/i40e/i40e_main.c:12112:3:
571 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
include/linux/rcupdate.h:1084:17: note: in expansion of macro ‘BUILD_BUG_ON’
1084 | BUILD_BUG_ON(offsetof(typeof(*(ptr)), rhf) >= 4096); \
drivers/net/ethernet/intel/i40e/i40e_main.c:5113:9: note: in expansion of macro ‘kfree_rcu’
5113 | kfree_rcu(q_vector, rcu);
| ^~~~~~~~~
The problem is that the 'rcu' member in 'q_vector' is too far from the start
of the structure. Move this member before the CPU mask instead, in all three
drivers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add buffer_recv_size to store the size of the received bytes.
Validate buffer_recv_size in send_usb_cmd().
Reported-by: syzbot+3bbbade4e1a7ab45ca3b@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-hwmon/61233ba1-e5ad-4d7a-ba31-3b5d0adcffcc@roeck-us.net
Fixes: 40c3a4454225 ("hwmon: add Corsair Commander Pro driver")
Signed-off-by: Marius Zachmann <mail@mariuszachmann.de>
Link: https://lore.kernel.org/r/20250619132817.39764-5-mail@mariuszachmann.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"There are 18 devicetree fixes for three arm64 plaforms: Qualcomm
Snapdragon, Rockchips and NXP i.MX. These get updated to more
correctly describe the hardware, fixing issues with:
- real-time clock on Snapdragon based laptops
- SD card detection, PCI probing and HDMI/DDC communication on
Rockchips
- ethernet and SPI probing on certain i.MX based boards
- a regression with the i.MX watchdog
Aside from the devicetree fixes, there are two additional fixes for
the merged ASPEED LPC snoop driver that saw some changes in 6.16, and
one additional driver enabled in arm64 defconfig to fix CPU frequency
scaling"
* tag 'soc-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
arm64: dts: freescale: imx8mm-verdin: Keep LDO5 always on
soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled
soc: aspeed: lpc-snoop: Cleanup resources in stack-order
arm64: dts: imx95: Correct the DMA interrupter number of pcie0_ep
arm64: dts: rockchip: Add missing fan-supply to rk3566-quartz64-a
arm64: dts: rockchip: use cs-gpios for spi1 on ringneck
arm64: dts: add big-endian property back into watchdog node
arm64: dts: imx95-15x15-evk: fix the overshoot issue of NETC
arm64: dts: imx95-19x19-evk: fix the overshoot issue of NETC
arm64: dts: rockchip: list all CPU supplies on ArmSoM Sige5
arm64: dts: imx8mp-venice-gw74xx: fix TPM SPI frequency
arm64: dts: imx8mp-venice-gw73xx: fix TPM SPI frequency
arm64: dts: imx8mp-venice-gw72xx: fix TPM SPI frequency
arm64: dts: imx8mp-venice-gw71xx: fix TPM SPI frequency
arm64: dts: qcom: x1e80100: describe uefi rtc offset
arm64: dts: qcom: sc8280xp-x13s: describe uefi rtc offset
arm64: defconfig: Enable Qualcomm CPUCP mailbox driver
arm64: dts: rockchip: Add cd-gpios for sdcard detect on Cool Pi 4B
arm64: dts: rockchip: Add cd-gpios for sdcard detect on Cool Pi CM5
arm64: dts: rockchip: Adjust the HDMI DDC IO driver strength for rk3588
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Benjamin Tissoires:
- one warning cleanup introduced in the last PR (Andy Shevchenko)
- a nasty syzbot buffer underflow fix co-debugged with Alan Stern
(Benjamin Tissoires)
* tag 'hid-for-linus-2025071501' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
selftests/hid: add a test case for the recent syzbot underflow
HID: core: do not bypass hid_hw_raw_request
HID: core: ensure __hid_request reserves the report ID as the first byte
HID: core: ensure the allocated report buffer can contain the reserved report ID
HID: debug: Remove duplicate entry (BTN_WHEEL)
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The function dw_edma_pcie_probe() in dw-edma-pcie.c triggered a
frame size warning:
ld.lld:warning:
drivers/dma/dw-edma/dw-edma-pcie.c:162:0: stack frame size (1040) exceeds limit (1024) in function 'dw_edma_pcie_probe'
This patch reduces the stack usage by dynamically allocating the
`vsec_data` structure using kmalloc(), rather than placing it on
the stack. This eliminates the overflow warning and improves kernel
robustness.
Signed-off-by: Abinash Singh <abinashsinghlalotra@gmail.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20250705160055.808165-1-abinashsinghlalotra@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The nbpf->chan[] array is allocated earlier in the nbpf_probe() function
and it has "num_channels" elements. These three loops iterate one
element farther than they should and corrupt memory.
The changes to the second loop are more involved. In this case, we're
copying data from the irqbuf[] array into the nbpf->chan[] array. If
the data in irqbuf[i] is the error IRQ then we skip it, so the iterators
are not in sync. I added a check to ensure that we don't go beyond the
end of the irqbuf[] array. I'm pretty sure this can't happen, but it
seemed harmless to add a check.
On the other hand, after the loop has ended there is a check to ensure
that the "chan" iterator is where we expect it to be. In the original
code we went one element beyond the end of the array so the iterator
wasn't in the correct place and it would always return -EINVAL. However,
now it will always be in the correct place. I deleted the check since
we know the result.
Cc: stable@vger.kernel.org
Fixes: b45b262cefd5 ("dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/b13c5225-7eff-448c-badc-a2c98e9bcaca@sabinyo.mountain
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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When phy->ref_clk is NULL PTR_ERR(NULL) will be a success. Fix this by
using -ENOENT when phy->ref_clk is NULL instead.
Fixes: 80090810f5d3 ("phy: qcom: Add QCOM SNPS eUSB2 driver")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aDCbeuCTy9zyWJAM@stanley.mountain/
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20250710172403.2593193-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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TRAINING_PATTERN_SET
Commit a3ef3c2da675 ("drm/dp: Change AUX DPCD probe address from
DPCD_REV to LANE0_1_STATUS") stopped using the DPCD_REV register for
DPCD probing, since this results in link training failures at least when
using an Intel Barlow Ridge TBT hub at UHBR link rates (the
DP_INTRA_HOP_AUX_REPLY_INDICATION never getting cleared after the failed
link training). Since accessing DPCD_REV during link training is
prohibited by the DP Standard, LANE0_1_STATUS (0x202) was used instead,
as it falls within the Standard's valid register address range
(0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) and it fixed the link
training on the above TBT hub.
However, reading the LANE0_1_STATUS register also has a side-effect at
least on a Novatek eDP panel, as reported on the Closes: link below,
resulting in screen flickering on that panel. One clear side-effect when
doing the 1-byte probe reads from LANE0_1_STATUS during link training
before reading out the full 6 byte link status starting at the same
address is that the panel will report the link training as completed
with voltage swing 0. This is different from the normal, flicker-free
scenario when no DPCD probing is done, the panel reporting the link
training complete with voltage swing 2.
Using the TRAINING_PATTERN_SET register for DPCD probing doesn't have
the above side-effect, the panel will link train with voltage swing 2 as
expected and it will stay flicker-free. This register is also in the
above valid register range and is unlikely to have a side-effect as that
of LANE0_1_STATUS: Reading LANE0_1_STATUS is part of the link training
CR/EQ sequences and so it may cause a state change in the sink - even if
inadvertently as I suspect in the case of the above Novatek panel. As
opposed to this, reading TRAINING_PATTERN_SET is not part of the link
training sequence (it must be only written once at the beginning of the
CR/EQ sequences), so it's unlikely to cause any state change in the
sink.
As a side-note, this Novatek panel also lacks support for TPS3, while
claiming support for HBR2, which violates the DP Standard (the Standard
mandating TPS3 for HBR2).
Besides the Novatek panel (PSR 1), which this change fixes, I also
verified the change on a Samsung (PSR 1) and an Analogix (PSR 2) eDP
panel as well as on the Intel Barlow Ridge TBT hub.
Note that in the drm-tip tree (targeting the v6.17 kernel version) the
i915 and xe drivers keep DPCD probing enabled only for the panel known
to require this (HP ZR24w), hence those drivers in drm-tip are not
affected by the above problem.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Fixes: a3ef3c2da675 ("drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS")
Reported-and-tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14558
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250708212331.112898-1-imre.deak@intel.com
(cherry picked from commit bba9aa41654036534d86b198f5647a9ce15ebd7f)
[Imre: Rebased on drm-intel-fixes]
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Rodrigo: Changed original commit hash to match with the one propagated in fixes]
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After commit aa7a9275ab81 ("PM: sleep: Suspend async parents after
suspending children"), the following scenario is possible:
1. Device A is async and it depends on device B that is sync.
2. Async suspend is scheduled for A before the processing of B is
started.
3. A is waiting for B.
4. In the meantime, an unrelated device fails to suspend and returns
an error.
5. The processing of B doesn't start at all and its power.completion is
not updated.
6. A is still waiting for B when async_synchronize_full() is called.
7. Deadlock ensues.
To prevent this from happening, update power.completion for all devices
on errors in all suspend phases, but do not do it directly for devices
that are already being processed or are waiting for the processing to
start because in those cases it may be necessary to wait for the
processing to actually complete before updating power.completion for
the device.
Fixes: aa7a9275ab81 ("PM: sleep: Suspend async parents after suspending children")
Fixes: 443046d1ad66 ("PM: sleep: Make suspend of devices more asynchronous")
Closes: https://lore.kernel.org/linux-pm/e13740a0-88f3-4a6f-920f-15805071a7d6@linaro.org/
Reported-and-tested-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://patch.msgid.link/6191258.lOV4Wx5bFT@rjwysocki.net
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This reverts commit 7796c97df6b1b2206681a07f3c80f6023a6593d5.
This patch broke Dragonboard 845c (sdm845). I see:
Unexpected kernel BRK exception at EL1
Internal error: BRK handler: 00000000f20003e8 [#1] SMP
pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom]
lr : snd_soc_dai_set_channel_map+0x34/0x78
Call trace:
qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P)
sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845]
snd_soc_link_init+0x28/0x6c
snd_soc_bind_card+0x5f4/0xb0c
snd_soc_register_card+0x148/0x1a4
devm_snd_soc_register_card+0x50/0xb0
sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845]
platform_probe+0x6c/0xd0
really_probe+0xc0/0x2a4
__driver_probe_device+0x7c/0x130
driver_probe_device+0x40/0x118
__device_attach_driver+0xc4/0x108
bus_for_each_drv+0x8c/0xf0
__device_attach+0xa4/0x198
device_initial_probe+0x18/0x28
bus_probe_device+0xb8/0xbc
deferred_probe_work_func+0xac/0xfc
process_one_work+0x244/0x658
worker_thread+0x1b4/0x360
kthread+0x148/0x228
ret_from_fork+0x10/0x20
Kernel panic - not syncing: BRK handler: Fatal exception
Dan has also reported following issues with the original patch
https://lore.kernel.org/all/33fe8fe7-719a-405a-9ed2-d9f816ce1d57@sabinyo.mountain/
Bug #1:
The zeroeth element of ctrl->pconfig[] is supposed to be unused. We
start counting at 1. However this code sets ctrl->pconfig[0].ch_mask = 128.
Bug #2:
There are SLIM_MAX_TX_PORTS (16) elements in tx_ch[] array but only
QCOM_SDW_MAX_PORTS + 1 (15) in the ctrl->pconfig[] array so it corrupts
memory like Yongqin Liu pointed out.
Bug 3:
Like Jie Gan pointed out, it erases all the tx information with the rx
information.
Cc: stable@vger.kernel.org # v6.15+
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Acked-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://lore.kernel.org/r/20250709174949.8541-1-amit.pundir@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB serial device ids for 6.16-rc7
Here are some more device ids for 6.16-rc7.
All have been in linux-next with no reported issues.
* tag 'usb-serial-6.16-rc7' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add Telit Cinterion FE910C04 (ECM) composition
USB: serial: ftdi_sio: add support for NDI EMGUIDE GEMINI
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https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
Miri Korenblit says:
====================
iwlwifi-fixes
- missing unlock in error path
- Avoid FW assert on bad command values
- fix kernel panic due to incorrect index calculation
====================
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Fixes reset GPIO usage during probe by ensuring we retrieve the GPIO and
take the device out of reset (if it defaults to being in reset) before
we attempt to communicate with the device. This is achieved by moving
the call to tcan4x5x_get_gpios() before tcan4x5x_find_version() and
avoiding any device communication while getting the GPIOs. Once we
determine the version, we can then take the knowledge of which GPIOs we
obtained and use it to decide whether we need to disable the wake or
state pin functions within the device.
This change is necessary in a situation where the reset GPIO is pulled
high externally before the CPU takes control of it, meaning we need to
explicitly bring the device out of reset before we can start
communicating with it at all.
This also has the effect of fixing an issue where a reset of the device
would occur after having called tcan4x5x_disable_wake(), making the
original behavior not actually disable the wake. This patch should now
disable wake or state pin functions well after the reset occurs.
Signed-off-by: Brett Werling <brett.werling@garmin.com>
Link: https://patch.msgid.link/20250711141728.1826073-1-brett.werling@garmin.com
Cc: Markus Schneider-Pargmann <msp@baylibre.com>
Fixes: 142c6dc6d9d7 ("can: tcan4x5x: Add support for tcan4552/4553")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-current
intel-gpio for v6.16-2
* Add a quirk for Acer Nitro V15 against wakeup capability
The following is an automated git shortlog grouped by driver:
gpiolib:
- acpi: Add a quirk for Acer Nitro V15
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The conversion from compiler assisted indexing to manual
indexing wasn't done correctly. The array is still made
up of __le16 elements so multiplying the outer index by
the element size is not what we want. Fix it up.
This causes the kernel to oops when trying to transfer any
significant amount of data over wifi:
BUG: unable to handle page fault for address: ffffc900009f5282
PGD 100000067 P4D 100000067 PUD 1000fb067 PMD 102e82067 PTE 0
Oops: Oops: 0002 [#1] SMP
CPU: 1 UID: 0 PID: 99 Comm: kworker/u8:3 Not tainted 6.15.0-rc2-cl-bisect3-00604-g6204d5130a64-dirty #78 PREEMPT
Hardware name: Dell Inc. Latitude E5400 /0D695C, BIOS A19 06/13/2013
Workqueue: events_unbound cfg80211_wiphy_work [cfg80211]
RIP: 0010:iwl_trans_pcie_tx+0x4dd/0xe60 [iwlwifi]
Code: 00 00 66 81 fa ff 0f 0f 87 42 09 00 00 3d ff 00 00 00 0f 8f 37 09 00 00 41 c1 e0 0c 41 09 d0 48 8d 14 b6 48 c1 e2 07 48 01 ca <66> 44 89 04 57 48 8d 0c 12 83 f8 3f 0f 8e 84 01 00 00 41 8b 85 80
RSP: 0018:ffffc900001c3b50 EFLAGS: 00010206
RAX: 00000000000000c1 RBX: ffff88810b180028 RCX: 00000000000000c1
RDX: 0000000000002141 RSI: 000000000000000d RDI: ffffc900009f1000
RBP: 0000000000000002 R08: 0000000000000025 R09: ffffffffa050fa60
R10: 00000000fbdbf4bc R11: 0000000000000082 R12: ffff88810e5ade40
R13: ffff88810af81588 R14: 000000000000001a R15: ffff888100dfe0c8
FS: 0000000000000000(0000) GS:ffff8881998c3000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900009f5282 CR3: 0000000001e39000 CR4: 00000000000426f0
Call Trace:
<TASK>
? rcu_is_watching+0xd/0x40
? __iwl_dbg+0xb1/0xe0 [iwlwifi]
iwlagn_tx_skb+0x8e2/0xcb0 [iwldvm]
iwlagn_mac_tx+0x18/0x30 [iwldvm]
ieee80211_handle_wake_tx_queue+0x6c/0xc0 [mac80211]
ieee80211_agg_start_txq+0x140/0x2e0 [mac80211]
ieee80211_agg_tx_operational+0x126/0x210 [mac80211]
ieee80211_process_addba_resp+0x27b/0x2a0 [mac80211]
ieee80211_iface_work+0x4bd/0x4d0 [mac80211]
? _raw_spin_unlock_irq+0x1f/0x40
cfg80211_wiphy_work+0x117/0x1f0 [cfg80211]
process_one_work+0x1ee/0x570
worker_thread+0x1c5/0x3b0
? bh_worker+0x240/0x240
kthread+0x110/0x220
? kthread_queue_delayed_work+0x90/0x90
ret_from_fork+0x28/0x40
? kthread_queue_delayed_work+0x90/0x90
ret_from_fork_asm+0x11/0x20
</TASK>
Modules linked in: ctr aes_generic ccm sch_fq_codel bnep xt_tcpudp xt_multiport xt_state iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv4 ip_tables x_tables btusb btrtl btintel btbcm bluetooth ecdh_generic ecc libaes hid_generic usbhid hid binfmt_misc joydev mousedev snd_hda_codec_hdmi iwldvm snd_hda_codec_idt snd_hda_codec_generic mac80211 coretemp iTCO_wdt watchdog kvm_intel i2c_dev snd_hda_intel libarc4 kvm snd_intel_dspcfg sdhci_pci sdhci_uhs2 snd_hda_codec iwlwifi sdhci irqbypass cqhci snd_hwdep snd_hda_core cfg80211 firewire_ohci mmc_core psmouse snd_pcm i2c_i801 firewire_core pcspkr led_class uhci_hcd i2c_smbus tg3 crc_itu_t iosf_mbi snd_timer rfkill libphy ehci_pci snd ehci_hcd lpc_ich mfd_core usbcore video intel_agp usb_common soundcore intel_gtt evdev agpgart parport_pc wmi parport backlight
CR2: ffffc900009f5282
---[ end trace 0000000000000000 ]---
RIP: 0010:iwl_trans_pcie_tx+0x4dd/0xe60 [iwlwifi]
Code: 00 00 66 81 fa ff 0f 0f 87 42 09 00 00 3d ff 00 00 00 0f 8f 37 09 00 00 41 c1 e0 0c 41 09 d0 48 8d 14 b6 48 c1 e2 07 48 01 ca <66> 44 89 04 57 48 8d 0c 12 83 f8 3f 0f 8e 84 01 00 00 41 8b 85 80
RSP: 0018:ffffc900001c3b50 EFLAGS: 00010206
RAX: 00000000000000c1 RBX: ffff88810b180028 RCX: 00000000000000c1
RDX: 0000000000002141 RSI: 000000000000000d RDI: ffffc900009f1000
RBP: 0000000000000002 R08: 0000000000000025 R09: ffffffffa050fa60
R10: 00000000fbdbf4bc R11: 0000000000000082 R12: ffff88810e5ade40
R13: ffff88810af81588 R14: 000000000000001a R15: ffff888100dfe0c8
FS: 0000000000000000(0000) GS:ffff8881998c3000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900009f5282 CR3: 0000000001e39000 CR4: 00000000000426f0
Kernel panic - not syncing: Fatal exception in interrupt
Kernel Offset: disabled
---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
Cc: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Fixes: 6204d5130a64 ("wifi: iwlwifi: use bc entries instead of bc table also for pre-ax210")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20250711205744.28723-1-ville.syrjala@linux.intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath
Jeff Johnson says:
==================
ath.git update for v6.16-rc7
Fix an ath12k performance regression introduce in v6.16-rc1
==================
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When restoring the default socket callbacks during a TLS handshake, we
need to acquire a write lock on sk_callback_lock. Previously, a read
lock was used, which is insufficient for modifying sk_user_data and
sk_data_ready.
Fixes: 675b453e0241 ("nvmet-tcp: enable TLS handshake upcall")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Procedures for nvme-mpath IO accounting:
1) initialize nvme_request and clear flags;
2) set NVME_MPATH_IO_STATS and increase inflight counter when IO
started;
3) check NVME_MPATH_IO_STATS and decrease inflight counter when IO is
done;
However, for the case nvme_fail_nonready_command(), both step 1) and 2)
are skipped, and if old nvme_request set NVME_MPATH_IO_STATS and then
request is reused, step 3) will still be executed, causing inflight I/O
counter to be negative.
Fix the problem by clearing nvme_request in nvme_fail_nonready_command().
Fixes: ea5e5f42cd2c ("nvme-fabrics: avoid double completions in nvmf_fail_nonready_command")
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Closes: https://lore.kernel.org/all/CAHj4cs_+dauobyYyP805t33WMJVzOWj=7+51p4_j9rA63D9sog@mail.gmail.com/
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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This was originally added by commit 8695f060a029 ("nvme: all namespaces
in a subsystem must adhere to a common atomic write size") to check
the all controllers in a subsystem report the same atomic write size,
but the check wasn't quite correct and caused problems for devices
with multiple namespaces that report different LBA sizes. Commit
f46d273449ba ("nvme: fix atomic write size validation") tried to fix
this, but then caused problems for namespace rediscovery after a
format with an LBA size change that changes the AWUPF value.
This drops the validation and essentially reverts those two commits while
keeping the cleanup that went in between the two. We'll need to figure
out how to properly check for the mouse trap that nvme left us, but for
now revert the check to keep devices working for users who couldn't care
less about the atomic write feature.
Fixes: 8695f060a029 ("nvme: all namespaces in a subsystem must adhere to a common atomic write size")
Fixes: f46d273449ba ("nvme: fix atomic write size validation")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alan Adamson <alan.adamson@oracle.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by: Alan Adamson <alan.adamson@oracle.com>
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