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1,447,411 commits

Author SHA1 Message Date
Yao Zi
365e649361 net: phy: motorcomm: Support YT8531S PHY in YT6801 Ethernet controller
YT6801's internal PHY is confirmed as a GMII-capable variant of YT8531S
by a previous series[1] and reading PHY ID. Add support for
PHY_INTERFACE_MODE_GMII for YT8531S to allow the Ethernet driver to
reuse the PHY code for its internal PHY.

Link: https://lore.kernel.org/all/a48d76ac-db08-46d5-9528-f046a7b541dc@motor-comm.com/ # [1]
Co-developed-by: Frank Sae <Frank.Sae@motor-comm.com>
Signed-off-by: Frank Sae <Frank.Sae@motor-comm.com>
Signed-off-by: Yao Zi <me@ziyao.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20260109093445.46791-3-me@ziyao.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 19:20:56 -08:00
Lorenzo Bianconi
dfdf774656 net: airoha: Fix typo in airoha_ppe_setup_tc_block_cb definition
Fix Typo in airoha_ppe_dev_setup_tc_block_cb routine definition when
CONFIG_NET_AIROHA is not enabled.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601090517.Fj6v501r-lkp@intel.com/
Fixes: f45fc18b6d ("net: airoha: Add airoha_ppe_dev struct definition")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260109-airoha_ppe_dev_setup_tc_block_cb-typo-v1-1-282e8834a9f9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 19:17:24 -08:00
Ankit Khushwaha
088f35ab9f selftests/net/ipsec: Fix variable size type not at the end of struct
The "struct alg" object contains a union of 3 xfrm structures:

	union {
		struct xfrm_algo;
		struct xfrm_algo_aead;
		struct xfrm_algo_auth;
	}

All of them end with a flexible array member used to store key material,
but the flexible array appears at *different offsets* in each struct.
bcz of this, union itself is of variable-sized & Placing it above
char buf[...] triggers:

ipsec.c:835:5: warning: field 'u' with variable sized type 'union
(unnamed union at ipsec.c:831:3)' not at the end of a struct or class
is a GNU extension [-Wgnu-variable-sized-type-not-at-end]
  835 |                 } u;
      |                   ^

one fix is to use "TRAILING_OVERLAP()" which works with one flexible
array member only.

But In "struct alg" flexible array member exists in all union members,
but not at the same offset, so TRAILING_OVERLAP cannot be applied.

so the fix is to explicitly overlay the key buffer at the correct offset
for the largest union member (xfrm_algo_auth). This ensures that the
flexible-array region and the fixed buffer line up.

No functional change.

Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
Link: https://patch.msgid.link/20260109152201.15668-1-ankitkhushwaha.linux@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 19:15:04 -08:00
Thorsten Blum
e405b3c9d4 net: ipconfig: Remove outdated comment and indent code block
The comment has been around ever since commit 1da177e4c3
("Linux-2.6.12-rc2") and can be removed. Remove it and indent the code
block accordingly.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260109121128.170020-2-thorsten.blum@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 19:11:35 -08:00
Alexei Starovoitov
9c1a3525fd Merge branch 'use-correct-destructor-kfunc-types'
Sami Tolvanen says:

====================
While running BPF self-tests with CONFIG_CFI (Control Flow
Integrity) enabled, I ran into a couple of failures in
bpf_obj_free_fields() caused by type mismatches between the
btf_dtor_kfunc_t function pointer type and the registered
destructor functions.

It looks like we can't change the argument type for these
functions to match btf_dtor_kfunc_t because the verifier doesn't
like void pointer arguments for functions used in BPF programs,
so this series fixes the issue by adding stubs with correct types
to use as destructors for each instance of this I found in the
kernel tree.

The last patch changes btf_check_dtor_kfuncs() to enforce the
function type when CFI is enabled, so we don't end up registering
destructors that panic the kernel.

v5:
- Rebased on bpf-next/master again.

v4: https://lore.kernel.org/bpf/20251126221724.897221-6-samitolvanen@google.com/
- Rebased on bpf-next/master.
- Renamed CONFIG_CFI_CLANG to CONFIG_CFI.
- Picked up Acked/Tested-by tags.

v3: https://lore.kernel.org/bpf/20250728202656.559071-6-samitolvanen@google.com/
- Renamed the functions and went back to __bpf_kfunc based
  on review feedback.

v2: https://lore.kernel.org/bpf/20250725214401.1475224-6-samitolvanen@google.com/
- Annotated the stubs with CFI_NOSEAL to fix issues with IBT
  sealing on x86.
- Changed __bpf_kfunc to explicit __used __retain.

v1: https://lore.kernel.org/bpf/20250724223225.1481960-6-samitolvanen@google.com/
====================

Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20260110082548.113748-6-samitolvanen@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-12 18:54:11 -08:00
Sami Tolvanen
99fde4d062 bpf, btf: Enforce destructor kfunc type with CFI
Ensure that registered destructor kfuncs have the same type
as btf_dtor_kfunc_t to avoid a kernel panic on systems with
CONFIG_CFI enabled.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20260110082548.113748-10-samitolvanen@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-12 18:53:57 -08:00
Sami Tolvanen
ba7f1024a1 selftests/bpf: Use the correct destructor kfunc type
With CONFIG_CFI enabled, the kernel strictly enforces that indirect
function calls use a function pointer type that matches the target
function. As bpf_testmod_ctx_release() signature differs from the
btf_dtor_kfunc_t pointer type used for the destructor calls in
bpf_obj_free_fields(), add a stub function with the correct type to
fix the type mismatch.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20260110082548.113748-9-samitolvanen@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-12 18:53:57 -08:00
Sami Tolvanen
c99d97b466 bpf: net_sched: Use the correct destructor kfunc type
With CONFIG_CFI enabled, the kernel strictly enforces that indirect
function calls use a function pointer type that matches the
target function. As bpf_kfree_skb() signature differs from the
btf_dtor_kfunc_t pointer type used for the destructor calls in
bpf_obj_free_fields(), add a stub function with the correct type to
fix the type mismatch.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20260110082548.113748-8-samitolvanen@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-12 18:53:57 -08:00
Sami Tolvanen
b40a5d724f bpf: crypto: Use the correct destructor kfunc type
With CONFIG_CFI enabled, the kernel strictly enforces that indirect
function calls use a function pointer type that matches the target
function. I ran into the following type mismatch when running BPF
self-tests:

  CFI failure at bpf_obj_free_fields+0x190/0x238 (target:
    bpf_crypto_ctx_release+0x0/0x94; expected type: 0xa488ebfc)
  Internal error: Oops - CFI: 00000000f2008228 [#1]  SMP
  ...

As bpf_crypto_ctx_release() is also used in BPF programs and using
a void pointer as the argument would make the verifier unhappy, add
a simple stub function with the correct type and register it as the
destructor kfunc instead.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Tested-by: Viktor Malik <vmalik@redhat.com>
Link: https://lore.kernel.org/r/20260110082548.113748-7-samitolvanen@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-12 18:53:57 -08:00
Zenm Chen
292c0bc8ac wifi: rtw89: Add support for D-Link VR Air Bridge (DWA-F18)
Add the ID 2001:3323 to the table to support an additional RTL8832AU
adapter: D-Link VR Air Bridge (DWA-F18).

Compile tested only.

Link: https://github.com/morrownr/rtw89/pull/44
Signed-off-by: Zenm Chen <zenmchen@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260112004759.6028-1-zenmchen@gmail.com
2026-01-13 10:51:21 +08:00
Zenm Chen
3116f287b8 wifi: rtw89: Add support for MSI AX1800 Nano (GUAX18N)
Add the ID 0db0:f0c8 to the table to support an additional RTL8832BU
adapter: MSI AX1800 Nano (GUAX18N).

Compile tested only.

Link: https://github.com/morrownr/rtl8852bu-20250826/pull/2
Signed-off-by: Zenm Chen <zenmchen@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260112004358.5516-1-zenmchen@gmail.com
2026-01-13 10:47:07 +08:00
Ping-Ke Shih
40714b8a21 wifi: rtw89: mac: set EDCCA configurations for RTL8922D
Update EDCCA settings of MAC part for RTL8922D to consider EDCCA state
signaled by BB circuit.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-14-pkshih@realtek.com
2026-01-13 10:34:47 +08:00
Ping-Ke Shih
6996a4c97a wifi: rtw89: mac: add an entry to enable MAC function in preinit
The preinit is to initialize partial MAC hardware needed before
downloading firmware, and then does post-init after firmware runs.

For RTL8922D, initialize some DMAC and CMAC at this step.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-13-pkshih@realtek.com
2026-01-13 10:33:36 +08:00
Ping-Ke Shih
c16673247b wifi: rtw89: mac: separate functions of CMAC power and function enable
To enable/disable CMAC function somewhere, separate controls of CMAC power
and function into individual functions. Also correct the hardware settings
by the way.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-12-pkshih@realtek.com
2026-01-13 10:31:58 +08:00
Ping-Ke Shih
baf3863146 wifi: rtw89: mac: configure DMA_STOP1 by predefined mask
For coming chip 8922DE, the DMA channel set is different from existing one,
so use predefined mask to handle the difference.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-11-pkshih@realtek.com
2026-01-13 10:30:26 +08:00
Ping-Ke Shih
7ded59e69a wifi: rtw89: mac: define preload_init for generations
The preload_init is to define preload size from memory to transmitting
buffer. The different generations should call its callback respectively
but suddenly it is missed. However, the register definitions of WiFi 6/7
are the same, things are well. For the coming RTL8922D, settings are
different, so abstract it.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-10-pkshih@realtek.com
2026-01-13 10:29:15 +08:00
Ping-Ke Shih
a69c2c9a58 wifi: rtw89: mac: update WP quota for RTL8922D
WP (WiFi payload) quota is to point to payload being transmitting in
memory. Assign quota to indicate WP page full.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-9-pkshih@realtek.com
2026-01-13 10:27:40 +08:00
Ping-Ke Shih
9cf039ee49 wifi: rtw89: mac: update MPDU quota according to chip DLE definition
MPDU quota is to define number of memory used to handle packets in DLE
(Data Link Engine). All chips use the same value before, but the RTL8922D
need to use chip specific value.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-8-pkshih@realtek.com
2026-01-13 10:25:56 +08:00
Ping-Ke Shih
70cd273aae wifi: rtw89: mac: set quota 13 for PLE SNRPT
The RTL8922D has additional quota 13 of SNRPT for PLE (payload engine).
Set value to the quota according to predefined tables.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-7-pkshih@realtek.com
2026-01-13 10:24:19 +08:00
Ping-Ke Shih
5afb451bb5 wifi: rtw89: mac: add dle_mem and ple_{min,max}_qt quota for RTL8922D
The quota of DLE and PLE depends on hardware design and consideration of
performance and application. Define them accordingly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-6-pkshih@realtek.com
2026-01-13 10:22:43 +08:00
Ping-Ke Shih
9d6a2a636c wifi: rtw89: mac: remove unnecessary return from rtw89_fwdl_secure_idmem_share_mode()
The return type of rtw89_fwdl_secure_idmem_share_mode() is void, so no need
a return.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-5-pkshih@realtek.com
2026-01-13 10:21:30 +08:00
Thorsten Blum
99853d9dae ecryptfs: Replace memcpy + NUL termination in ecryptfs_copy_filename
Use kmemdup_nul() to copy 'name' instead of using memcpy() followed by a
manual NUL termination.  Remove the local return variable and the goto
label to simplify the code.  No functional changes.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Tyler Hicks <code@tyhicks.com>
Signed-off-by: Tyler Hicks <code@tyhicks.com>
2026-01-12 20:21:27 -06:00
Chia-Yuan Li
286bb07889 wifi: rtw89: coex: update coex software control for RTL8922D
Update software control API due to 8922D PTA hardware changes.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-4-pkshih@realtek.com
2026-01-13 10:20:03 +08:00
Ping-Ke Shih
ed2feda12f wifi: rtw89: coex: update scoreboard value according to power state for two BT
Assign timeslot to WiFi if power state is on. Since firmware isn't working
at this moment, write scoreboard register to notify BT. Extend the code to
support two BT for coming chips.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-3-pkshih@realtek.com
2026-01-13 10:19:48 +08:00
Ping-Ke Shih
95052ab2d7 wifi: rtw89: coex: make coex scoreboard as chip info
The coex scoreboard is to exchange WiFi and BT profiles, and the coming
chip 8922D changes the design including extend to two scoreboards and
individual register for cfg/get. Follow the changes to abstract current
code, but not change logic for existing chips at all.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260108120320.2217402-2-pkshih@realtek.com
2026-01-13 10:18:00 +08:00
Jakub Kicinski
d2f59bf975 Merge branch 'net-stmmac-cleanups-and-low-priority-fixes'
Russell King says:

====================
net: stmmac: cleanups and low priority fixes

Further cleanups and a few low priority fixes:

- Remove duplicated register definitions from header files
- Fix harmless wrong definition used for PTP message type in
  descriptors
- Fix norm_set_tx_desc_len_on_ring() off-by-one error (and make
  enh_set_tx_desc_len_on_ring() follow a similar pattern.)
  Document the buffer size limits. I believe we never call
  norm_set_tx_desc_len_on_ring() with 2KiB lengths.
- use u32 rather than unsigned int for 32-bit quantities in
  descriptors
- modernise: convert to use FIELD_PREP() rather than separate mask
  and shift definitions.
- Reorganise register and register field definitions: registers
  defined in address offset order followed by their register field
  definitions.
- Remove lots of unused register definitions.
====================

Link: https://patch.msgid.link/aV_q2Kneinrk3Z-W@shell.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:13 -08:00
Russell King (Oracle)
5a78fd3deb net: stmmac: remove unused definitions
Potentially unused definitions were discovered using:

$ for m in $(grep '#define ' $header | sed -e 's,#define[  ]*\([^  ]*\)[   ].*,\1,;s,(.*,,'); do if ! grep -q $m *.c; then echo $m; fi; done

Each was verified, and then removed where truly unused.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtwI-00000002Gu6-1HYu@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:12 -08:00
Russell King (Oracle)
58bc0f0bfc net: stmmac: arrange register fields after register offsets
Arrange the register fields to be after their corresponding register
offset definitions, which groups all the definitions for a register
together.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtwD-00000002Gu0-0nTN@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:11 -08:00
Russell King (Oracle)
8409495bf6 net: stmmac: cores: remove many xxx_SHIFT definitions
We have many xxx_SHIFT definitions along side their corresponding
xxx_MASK definitions for the various cores. Manually using the
shift and mask can be error prone, as shown with the dwmac4 RXFSTS
fix patch.

Convert sites that use xxx_SHIFT and xxx_MASK directly to use
FIELD_GET(), FIELD_PREP(), and u32_replace_bits() as appropriate.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtw8-00000002Gtu-0Hyu@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:11 -08:00
Russell King (Oracle)
670d10509f net: stmmac: descs: remove many xxx_SHIFT definitions
Remove many xxx_SHIFT definitions for descriptors, isntead using
FIELD_PREP(), FIELD_GET(), and u32_replace_bits() as appropriate to
manipulate the bitfields. This avoids potential errors where an
incorrect shift is used with a mask.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtw2-00000002Gto-3ZPt@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:11 -08:00
Russell King (Oracle)
d3b8c9b393 net: stmmac: descs: use u32 for descriptors
Use u32 rather than unsigned int for 32-bit descriptor variables.
This will allow the u32 bitfield helpers to be used. Note, we use
__le32 for the in-memory descriptor structures.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtvx-00000002Gth-32RU@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:11 -08:00
Russell King (Oracle)
ec3fde9eea net: stmmac: descs: fix buffer 1 off-by-one error
norm_set_tx_desc_len_on_ring() incorrectly tests the buffer length,
leading to a length of 2048 being squeezed into a bitfield covering
bits 10:0 - which results in the buffer 1 size being zero.

If this field is zero, buffer 1 is ignored, and thus is equivalent to
transmitting a zero length buffer.

The path to norm_set_tx_desc_len_on_ring() is only possible when the
hardware does not support enhanced descriptors (plat->enh_desc clear)
which is dependent on the hardware.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtvs-00000002Gtb-2U9G@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:11 -08:00
Russell King (Oracle)
e91a7e45bf net: stmmac: dwmac4: fix PTP message type field extraction
In dwmac4_wrback_get_rx_status(), the code extracts the PTP message
type from receive descriptor 1 using the dwmac enhanced descriptor
definitions:

	message_type = (rdes1 & ERDES4_MSG_TYPE_MASK) >> 8;

This is defined as:

 #define ERDES4_MSG_TYPE_MASK            GENMASK(11, 8)

The correct definition is RDES1_PTP_MSG_TYPE_MASK, which is also
defined as:

 #define RDES1_PTP_MSG_TYPE_MASK         GENMASK(11, 8)

Use the correct definition, converting to use FIELD_GET() to extract
it without needing an open-coded shift right that is dependent on the
mask definition.

As this change has no effect on the generated code, there is no need
to treat this as a bug fix.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtvn-00000002GtV-1wCS@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:11 -08:00
Russell King (Oracle)
65b21a7d4d net: stmmac: dwmac4: fix RX FIFO fill statistics
In dwmac4_debug(), the wrong shift is used with the RXFSTS mask:

 #define MTL_DEBUG_RXFSTS_MASK          GENMASK(5, 4)
 #define MTL_DEBUG_RXFSTS_SHIFT         4
 #define MTL_DEBUG_RRCSTS_SHIFT         1

                       u32 rxfsts = (value & MTL_DEBUG_RXFSTS_MASK)
                                    >> MTL_DEBUG_RRCSTS_SHIFT;

where rxfsts is tested against small integers 1 .. 3. This results in
the tests always failing, causing the "mtl_rx_fifo__fill_level_empty"
statistic counter to always be incremented no matter what the fill
level actually is.

Fix this by using FIELD_GET() and remove the unnecessary
MTL_DEBUG_RXFSTS_SHIFT definition as FIELD_GET() will shift according
to the least siginificant set bit in the supplied field mask.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtvi-00000002GtP-1Os1@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:10 -08:00
Russell King (Oracle)
1fd3b57371 net: stmmac: dwmac4: remove duplicated definitions
dwmac4.h duplicates some of the debug register definitions. Remove
the second copy.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vdtvd-00000002GtJ-0qFI@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:02:10 -08:00
Jijie Shao
e02f2a0f1f net: phy: motorcomm: fix duplex setting error for phy leds
fix duplex setting error for phy leds

Fixes: 355b82c54c ("net: phy: motorcomm: Add support for PHY LEDs on YT8521")
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260108071409.2750607-1-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:01:09 -08:00
Bobby Eshleman
5c024716f5 net: devmem: convert binding refcount to percpu_ref
Convert net_devmem_dmabuf_binding refcount from refcount_t to percpu_ref
to optimize common-case reference counting on the hot path.

The typical devmem workflow involves binding a dmabuf to a queue
(acquiring the initial reference on binding->ref), followed by
high-volume traffic where every skb fragment acquires a reference.
Eventually traffic stops and the unbind operation releases the initial
reference. Additionally, the high traffic hot path is often multi-core.
This access pattern is ideal for percpu_ref as the first and last
reference during bind/unbind normally book-ends activity in the hot
path.

__net_devmem_dmabuf_binding_free becomes the percpu_ref callback invoked
when the last reference is dropped.

kperf test:
- 4MB message sizes
- 60s of workload each run
- 5 runs
- 4 flows

Throughput:
	Before: 45.31 GB/s (+/- 3.17 GB/s)
	After: 48.67 GB/s (+/- 0.01 GB/s)

Picking throughput-matched kperf runs (both before and after matched at
~48 GB/s) for apples-to-apples comparison:

Summary (averaged across 4 workers):

  TX worker CPU idle %:
    Before: 34.44%
    After: 87.13%

  RX worker CPU idle %:
    Before: 5.38%
    After: 9.73%

kperf before:

client: == Source
client:   Tx 98.100 Gbps (735764807680 bytes in 60001149 usec)
client:   Tx102.798 Gbps (770996961280 bytes in 60001149 usec)
client:   Tx101.534 Gbps (761517834240 bytes in 60001149 usec)
client:   Tx 82.794 Gbps (620966707200 bytes in 60001149 usec)
client:   net CPU 56: usr: 0.01% sys: 0.12% idle:17.06% iow: 0.00% irq: 9.89% sirq:72.91%
client:   app CPU 60: usr: 0.08% sys:63.30% idle:36.24% iow: 0.00% irq: 0.30% sirq: 0.06%
client:   net CPU 57: usr: 0.03% sys: 0.08% idle:75.68% iow: 0.00% irq: 2.96% sirq:21.23%
client:   app CPU 61: usr: 0.06% sys:67.67% idle:31.94% iow: 0.00% irq: 0.28% sirq: 0.03%
client:   net CPU 58: usr: 0.01% sys: 0.06% idle:76.87% iow: 0.00% irq: 2.84% sirq:20.19%
client:   app CPU 62: usr: 0.06% sys:69.78% idle:29.79% iow: 0.00% irq: 0.30% sirq: 0.05%
client:   net CPU 59: usr: 0.06% sys: 0.16% idle:74.97% iow: 0.00% irq: 3.76% sirq:21.03%
client:   app CPU 63: usr: 0.06% sys:59.82% idle:39.80% iow: 0.00% irq: 0.25% sirq: 0.05%
client: == Target
client:   Rx 98.092 Gbps (735764807680 bytes in 60006084 usec)
client:   Rx102.785 Gbps (770962161664 bytes in 60006084 usec)
client:   Rx101.523 Gbps (761499566080 bytes in 60006084 usec)
client:   Rx 82.783 Gbps (620933136384 bytes in 60006084 usec)
client:   net CPU  2: usr: 0.00% sys: 0.01% idle:24.51% iow: 0.00% irq: 1.67% sirq:73.79%
client:   app CPU  6: usr: 1.51% sys:96.43% idle: 1.13% iow: 0.00% irq: 0.36% sirq: 0.55%
client:   net CPU  1: usr: 0.00% sys: 0.01% idle:25.18% iow: 0.00% irq: 1.99% sirq:72.80%
client:   app CPU  5: usr: 2.21% sys:94.54% idle: 2.54% iow: 0.00% irq: 0.38% sirq: 0.30%
client:   net CPU  3: usr: 0.00% sys: 0.01% idle:26.34% iow: 0.00% irq: 2.12% sirq:71.51%
client:   app CPU  7: usr: 2.22% sys:94.28% idle: 2.52% iow: 0.00% irq: 0.59% sirq: 0.37%
client:   net CPU  0: usr: 0.00% sys: 0.03% idle: 0.00% iow: 0.00% irq:10.44% sirq:89.51%
client:   app CPU  4: usr: 2.39% sys:81.46% idle:15.33% iow: 0.00% irq: 0.50% sirq: 0.30%

kperf after:

client: == Source
client:   Tx 99.257 Gbps (744447016960 bytes in 60001303 usec)
client:   Tx101.013 Gbps (757617131520 bytes in 60001303 usec)
client:   Tx 88.179 Gbps (661357854720 bytes in 60001303 usec)
client:   Tx101.002 Gbps (757533245440 bytes in 60001303 usec)
client:   net CPU 56: usr: 0.00% sys: 0.01% idle: 6.22% iow: 0.00% irq: 8.68% sirq:85.06%
client:   app CPU 60: usr: 0.08% sys:12.56% idle:87.21% iow: 0.00% irq: 0.08% sirq: 0.05%
client:   net CPU 57: usr: 0.00% sys: 0.05% idle:69.53% iow: 0.00% irq: 2.02% sirq:28.38%
client:   app CPU 61: usr: 0.11% sys:13.40% idle:86.36% iow: 0.00% irq: 0.08% sirq: 0.03%
client:   net CPU 58: usr: 0.00% sys: 0.03% idle:70.04% iow: 0.00% irq: 3.38% sirq:26.53%
client:   app CPU 62: usr: 0.10% sys:11.46% idle:88.31% iow: 0.00% irq: 0.08% sirq: 0.03%
client:   net CPU 59: usr: 0.01% sys: 0.06% idle:71.18% iow: 0.00% irq: 1.97% sirq:26.75%
client:   app CPU 63: usr: 0.10% sys:13.10% idle:86.64% iow: 0.00% irq: 0.10% sirq: 0.05%
client: == Target
client:   Rx 99.250 Gbps (744415182848 bytes in 60003297 usec)
client:   Rx101.006 Gbps (757589737472 bytes in 60003297 usec)
client:   Rx 88.171 Gbps (661319475200 bytes in 60003297 usec)
client:   Rx100.996 Gbps (757514792960 bytes in 60003297 usec)
client:   net CPU  2: usr: 0.00% sys: 0.01% idle:28.02% iow: 0.00% irq: 1.95% sirq:70.00%
client:   app CPU  6: usr: 2.03% sys:87.20% idle:10.04% iow: 0.00% irq: 0.37% sirq: 0.33%
client:   net CPU  3: usr: 0.00% sys: 0.00% idle:27.63% iow: 0.00% irq: 1.90% sirq:70.45%
client:   app CPU  7: usr: 1.78% sys:89.70% idle: 7.79% iow: 0.00% irq: 0.37% sirq: 0.34%
client:   net CPU  0: usr: 0.00% sys: 0.01% idle: 0.00% iow: 0.00% irq: 9.96% sirq:90.01%
client:   app CPU  4: usr: 2.33% sys:83.51% idle:13.24% iow: 0.00% irq: 0.64% sirq: 0.26%
client:   net CPU  1: usr: 0.00% sys: 0.01% idle:27.60% iow: 0.00% irq: 1.94% sirq:70.43%
client:   app CPU  5: usr: 1.88% sys:89.61% idle: 7.86% iow: 0.00% irq: 0.35% sirq: 0.27%

Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260107-upstream-precpu-ref-v2-v2-1-a709f098b3dc@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 18:00:12 -08:00
Jakub Kicinski
218f8dc9c2 Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2026-01-09 (ice, ixgbe, idpf)

For ice:
Grzegorz commonizes firmware loading process across all ice devices.

Michal adjusts default queue allocation to be based on
netif_get_num_default_rss_queues() rather than num_online_cpus().

For ixgbe:
Birger Koblitz adds support for 10G-BX modules.

For idpf:
Sreedevi converts always successful function to return void.

Andy Shevchenko fixes kdocs for missing 'Return:' in idpf_txrx.c file.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  idpf: Fix kernel-doc descriptions to avoid warnings
  idpf: update idpf_up_complete() return type to void
  ice: use netif_get_num_default_rss_queues()
  ixgbe: Add 10G-BX support
  ice: unify PHY FW loading status handler for E800 devices
====================

Link: https://patch.msgid.link/20260109210647.3849008-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 17:26:45 -08:00
Jakub Kicinski
669aa3e3fa First set of changes for the current -next cycle, of note:
- ath12k gets an overhaul to support multi-wiphy device
    wiphy and pave the way for future device support in the
    same driver (rather than splitting to ath13k)
  - mac80211 gets some better iteration macros
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Merge tag 'wireless-next-2026-01-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
First set of changes for the current -next cycle, of note:

 - ath12k gets an overhaul to support multi-wiphy device
   wiphy and pave the way for future device support in
   the same driver (rather than splitting to ath13k)

 - mac80211 gets some better iteration macros

* tag 'wireless-next-2026-01-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (120 commits)
  wifi: mac80211: remove width argument from ieee80211_parse_bitrates
  wifi: mac80211_hwsim: remove NAN by default
  wifi: mac80211: improve station iteration ergonomics
  wifi: mac80211: improve interface iteration ergonomics
  wifi: cfg80211: include S1G_NO_PRIMARY flag when sending channel
  wifi: mac80211: unexport ieee80211_get_bssid()
  wl1251: Replace strncpy with strscpy in wl1251_acx_fw_version
  wifi: iwlegacy: 3945-rs: remove redundant pointer check in il3945_rs_tx_status() and il3945_rs_get_rate()
  wifi: mac80211: don't send an unused argument to ieee80211_check_combinations
  wifi: libertas: fix WARNING in usb_tx_block
  wifi: mwifiex: Allocate dev name earlier for interface workqueue name
  wifi: wlcore: sdio: Use pm_ptr instead of #ifdef CONFIG_PM
  wifi: cfg80211: Fix use_for flag update on BSS refresh
  wifi: brcmfmac: rename function that frees vif
  wifi: brcmfmac: fix/add kernel-doc comments
  wifi: mac80211: Update csa_finalize to use link_id
  wifi: cfg80211: add cfg80211_stop_link() for per-link teardown
  wifi: ath12k: Skip DP peer creation for scan vdev
  wifi: ath12k: move firmware stats request outside of atomic context
  wifi: ath12k: add the missing RCU lock in ath12k_dp_tx_free_txbuf()
  ...
====================

Link: https://patch.msgid.link/20260112185836.378736-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 17:02:02 -08:00
Tetsuo Handa
ec69daabe4 bpf: Fix reference count leak in bpf_prog_test_run_xdp()
syzbot is reporting

  unregister_netdevice: waiting for sit0 to become free. Usage count = 2

problem. A debug printk() patch found that a refcount is obtained at
xdp_convert_md_to_buff() from bpf_prog_test_run_xdp().

According to commit ec94670fcb ("bpf: Support specifying ingress via
xdp_md context in BPF_PROG_TEST_RUN"), the refcount obtained by
xdp_convert_md_to_buff() will be released by xdp_convert_buff_to_md().

Therefore, we can consider that the error handling path introduced by
commit 1c19499825 ("bpf: introduce frags support to
bpf_prog_test_run_xdp()") forgot to call xdp_convert_buff_to_md().

Reported-by: syzbot+881d65229ca4f9ae8c84@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=881d65229ca4f9ae8c84
Fixes: 1c19499825 ("bpf: introduce frags support to bpf_prog_test_run_xdp()")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/af090e53-9d9b-4412-8acb-957733b3975c@I-love.SAKURA.ne.jp
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-12 16:37:40 -08:00
Julia Filipchuk
9512d9fc2a drm/i915/guc: Recommend GuC v70.53.0 for DG2, MTL
UAPI compatibility version 1.26.0

Update recommended GuC version for DG2, MTL.

Signed-off-by: Julia Filipchuk <julia.filipchuk@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patch.msgid.link/20251112182606.1470733-2-julia.filipchuk@intel.com
2026-01-12 14:21:10 -08:00
Ming Lei
65955a0993 selftests: ublk: add stop command with --safe option
Add 'stop' subcommand to kublk utility that uses the new
UBLK_CMD_TRY_STOP_DEV command when --safe option is specified.
This allows stopping a device only if it has no active openers,
returning -EBUSY otherwise.

Also add test_generic_16.sh to test the new functionality.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-12 15:07:31 -07:00
Yoav Cohen
93ada1b3da ublk: add UBLK_CMD_TRY_STOP_DEV command
Add a best-effort stop command, UBLK_CMD_TRY_STOP_DEV, which only stops a
ublk device when it has no active openers.

Unlike UBLK_CMD_STOP_DEV, this command does not disrupt existing users.
New opens are blocked only after disk_openers has reached zero; if the
device is busy, the command returns -EBUSY and leaves it running.

The ub->block_open flag is used only to close a race with an in-progress
open and does not otherwise change open behavior.

Advertise support via the UBLK_F_SAFE_STOP_DEV feature flag.

Signed-off-by: Yoav Cohen <yoav@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-12 15:07:31 -07:00
Yoav Cohen
9e386f49fa ublk: make ublk_ctrl_stop_dev return void
This function always returns 0, so there is no need to return a value.

Signed-off-by: Yoav Cohen <yoav@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-12 15:07:31 -07:00
Karthik Poosa
49a4983384
drm/xe/hwmon: Expose individual VRAM channel temperature
Expose individual VRAM temperature attributes.
Update Xe hwmon documentation for this entry.

v2:
 - Avoid using default switch case for VRAM individual temperatures.
 - Append labels with VRAM channel number.
 - Update kernel version in Xe hwmon documentation.

v3:
 - Add missing brackets in Xe hwmon documentation from VRAM channel sysfs.
 - Reorder BMG_VRAM_TEMPERATURE_N macro in xe_pcode_regs.h.
 - Add api to check if VRAM is available on the channel.

v4:
 - Improve VRAM label handling to eliminate temp variable by
   introducing a dedicated array vram_label in xe_hwmon_thermal_info.
 - Remove a magic number.
 - Change the label from vram_X to vram_ch_X.

v5:
 - Address review comments from Raag.
 - Change vram to VRAM in commit title and subject.
 - Refactor BMG_VRAM_TEMPERATURE_N macro.
 - Refactor is_vram_ch_available().
 - Rephrase a comment.
 - Check individual VRAM temperature limits in addition to VRAM
   availability in xe_hwmon_temp_is_visible. (Raag)
 - Move VRAM label change out of this patch.

v6:
 - Use in_range() for VRAM_N index check instead of if check. (Raag)
 - Minor aesthetic changes.

Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20260112203521.1014388-5-karthik.poosa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-01-12 17:00:29 -05:00
Karthik Poosa
8d2511686e
drm/xe/hwmon: Expose GPU PCIe temperature
Expose GPU PCIe average temperature and its limits via hwmon sysfs entry
temp5_xxx.
Update Xe hwmon sysfs documentation for this.

v2: Update kernel version in Xe hwmon documentation. (Raag)

v3:
 - Address review comments from Raag.
 - Remove redundant debug log.
 - Update kernel version in Xe hwmon documentation. (Raag)

v4:
 - Address review comments from Raag.
 - Group new temperature attributes with existing temperature attributes
   as per channel index in Xe hwmon documentation.
 - Use TEMP_MASK instead of TEMP_MASK_MAILBOX.
 - Add PCIE_SENSOR_MASK which uses REG_FIELD_GET as replacement of
   PCIE_SENSOR_SHIFT.

v5:
 - Address review comments from Raag.
 - Use REG_FIELD_GET to get PCIe temperature.
 - Move PCIE_SENSOR_GROUP_ID and PCIE_SENSOR_MASK to xe_pcode_api.h
 - Cosmetic change.

Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20260112203521.1014388-4-karthik.poosa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-01-12 17:00:29 -05:00
Karthik Poosa
3a0cb885e1
drm/xe/hwmon: Expose memory controller temperature
Expose GPU memory controller average temperature and its limits under
temp4_xxx.
Update Xe hwmon documentation for this.

v2:
 - Rephrase commit message. (Badal)
 - Update kernel version in Xe hwmon documentation. (Raag)

v3:
 - Update kernel version in Xe hwmon documentation.
 - Address review comments from Raag.
 - Remove obvious comments.
 - Remove redundant debug logs.
 - Remove unnecessary checks.
 - Avoid magic numbers.
 - Add new comments.
 - Use temperature sensors count to make memory controller visible.
 - Use temperature limits of package for memory controller.

v4:
 - Address review comments from Raag.
 - Group new temperature attributes with existing temperature attributes
   as per channel index in Xe hwmon documentation.
 - Use DIV_ROUND_UP to calculate dwords needed for temperature limits.
 - Minor aesthetic refinements.
 - Remove unused TEMP_MASK_MAILBOX.

v5:
 - Use REG_FIELD_GET to get count from READ_THERMAL_DATA output. (Raag)
 - Change count print from decimal to hexadecimal.
 - Cosmetic changes.

Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20260112203521.1014388-3-karthik.poosa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-01-12 17:00:29 -05:00
Karthik Poosa
c332fba805
drm/xe/hwmon: Expose temperature limits
Read temperature limits using pcode mailbox and expose shutdown
temperature limit as tempX_emergency, critical temperature limit as
tempX_crit and GPU max temperature limit as temp2_max.

Update Xe hwmon documentation with above entries.

v2:
 - Resolve a documentation warning.
 - Address below review comments from Raag.
 - Update date and kernel version in Xe hwmon documentation.
 - Remove explicit disable of has_mbx_thermal_info for unsupported
   platforms.
 - Remove unnecessary default case in switches.
 - Remove obvious comments.
 - Use TEMP_LIMIT_MAX to compute number of dwords needed in
   xe_hwmon_thermal_info.
 - Remove THERMAL_LIMITS_DWORDS macro.
 - Use has_mbx_thermal_info for checking thermal mailbox support.

v3:
 - Address below minor comments. (Raag)
 - Group new temperature attributes with existing temperature attributes
   as per channel index in Xe hwmon documentation.
 - Rename enums of xe_temp_limit to improve clarity.
 - Use DIV_ROUND_UP to calculate dwords needed for temperature limits.
 - Use return instead of breaks in xe_hwmon_temp_read.
 - Minor aesthetic refinements.

v4:
 - Remove a redundant break. (Raag)
 - Update drm_dbg to drm_warn to inform user of unavailability for
   thermal mailbox on expected platforms.

Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20260112203521.1014388-2-karthik.poosa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-01-12 17:00:29 -05:00
Jakub Kicinski
2f2d896ec5 Merge branch 'tools-ynl-cli-improve-the-help-and-doc'
Jakub Kicinski says:

====================
tools: ynl: cli: improve the help and doc

I had some time on the plane to LPC, so here are improvements
to the --help and --list-attrs handling of YNL CLI which seem
in order given growing use of YNL as a real CLI tool.
====================

Link: https://patch.msgid.link/20260110233142.3921386-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 13:30:39 -08:00
Jakub Kicinski
60411adedf tools: ynl: cli: print reply in combined format if possible
As pointed out during review of the --list-attrs support the GET
ops very often return the same attrs from do and dump. Make the
output more readable by combining the reply information, from:

  Do request attributes:
    - ifindex: u32
      netdev ifindex

  Do reply attributes:
    - ifindex: u32
      netdev ifindex
    [ .. other attrs .. ]

  Dump reply attributes:
    - ifindex: u32
      netdev ifindex
    [ .. other attrs .. ]

To, after:

  Do request attributes:
    - ifindex: u32
      netdev ifindex

  Do and Dump reply attributes:
    - ifindex: u32
      netdev ifindex
    [ .. other attrs .. ]

Tested-by: Gal Pressman <gal@nvidia.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20260110233142.3921386-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-12 13:29:31 -08:00