kernel/git/stable/linux.git/drivers/platform/mellanox, branch master

mlxbf-bootctl: fix the build error with FIELD_PREP()

2026-08-18T14:30:32+00:00

rsh_log_store() calls the FIELD_PREP() macro without including the required header file, resulting a build error: CC drivers/platform/mellanox/mlxbf-bootctl.o drivers/platform/mellanox/mlxbf-bootctl.c: In function ‘rsh_log_store’: drivers/platform/mellanox/mlxbf-bootctl.c:429:16: error: implicit declaration of function ‘FIELD_PREP’ [-Wimplicit-function-declaration] 429 | data = FIELD_PREP(MLXBF_RSH_LOG_TYPE_MASK, MLXBF_RSH_LOG_TYPE_MSG); | ^~~~~~~~~~ Fix this by including the file. Fixes: e9d1b2d0f7d0 ("mlxbf-bootctl: Add sysfs file for BlueField boot log") Signed-off-by: Nikolay Kulikov Link: https://patch.msgid.link/20260810-mellanox_fix_implicit_declaration-v1-1-352e647b8f28@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL

2026-07-10T13:33:55+00:00

Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. mlxbf_pmc_probe() passes the result of ACPI_COMPANION() to acpi_device_hid(), which dereferences it, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. Accordingly, add a requisite ACPI_COMPANION() check against NULL to the mlxbf-pmc driver and return -ENODEV when the companion is missing. Fixes: 1a218d312e65 ("platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver") Signed-off-by: Linmao Li Link: https://patch.msgid.link/20260706012056.524096-1-lilinmao@kylinos.cn Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/mellanox: nvsw-sn2201: Drop unused include

2026-03-23T09:55:32+00:00

This driver includes the legacy header but does not use any symbols from it. Drop the inclusion. Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20260320222033.3238317-1-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

platform: mellanox: mlx-platform: Add support DGX flavor of next-generation 800GB/s ethernet switch.

2026-01-28T12:38:21+00:00

This system is based on Nvidia SN5600 Spectrum-4 Based 64x800Gb/s ETH Switch System, with the following key changes: Key changes: 1. New system SKU: HI174. 2. Power Supply: PSU AC replaiced with PDB board (added pdb/pwr attributes). 3. CPLD: Update register map with new PDB related signals. Signed-off-by: Oleksandr Shamray Reviewed-by: Vadim Pasternak Link: https://patch.msgid.link/20260128075939.2704019-3-oleksandrs@nvidia.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform: mellanox: mlx-platform: Add support for new Nvidia DGX system based on class VMOD0010

2026-01-28T12:38:18+00:00

This system is based on Nvidia QM9700 64x400G QTM-2 switch, with the following key changes: Key changes: 1. New system SKU: HI73. 2. Power Supply: PSU AC replaiced with PDB board (added pdb/pwr attributes). 3. CPLD: Update register map with new PDB related signals. Signed-off-by: Oleksandr Shamray Reviewed-by: Vadim Pasternak Link: https://patch.msgid.link/20260128075939.2704019-2-oleksandrs@nvidia.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/mellanox: Fix SN5640/SN5610 LED platform data

2026-01-15T13:54:52+00:00

In SN5640/SN5610 platforms should be used XDR style LED data with predefined slot index per led_fan. Fixes: 317bbe169c46 ("platform: mellanox: mlx-platform: Add support for new Nvidia system") Signed-off-by: Oleksandr Shamray Reviewed-by: Vadim Pasternak Link: https://patch.msgid.link/20260107142548.916556-1-oleksandrs@nvidia.com Signed-off-by: Ilpo Järvinen

platform/mellanox: mlxbf-pmc: Remove trailing whitespaces from event names

2025-12-22T14:09:29+00:00

Some event names have trailing whitespaces at the end which causes programming of counters using the name for these specific events to fail and hence need to be removed. Fixes: 423c3361855c ("platform/mellanox: mlxbf-pmc: Add support for BlueField-3") Signed-off-by: Shravan Kumar Ramani Reviewed-by: David Thompson Link: https://patch.msgid.link/065cbae0717dcc1169681c4dbb1a6e050b8574b3.1766059953.git.shravankr@nvidia.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/mellanox: mlxbf-pmc: add sysfs_attr_init() to count_clock init

2025-10-15T08:12:57+00:00

The lock-related debug logic (CONFIG_LOCK_STAT) in the kernel is noting the following warning when the BlueField-3 SOC is booted: BUG: key ffff00008a3402a8 has not been registered! ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 4 PID: 592 at kernel/locking/lockdep.c:4801 lockdep_init_map_type+0x1d4/0x2a0 Call trace: lockdep_init_map_type+0x1d4/0x2a0 __kernfs_create_file+0x84/0x140 sysfs_add_file_mode_ns+0xcc/0x1cc internal_create_group+0x110/0x3d4 internal_create_groups.part.0+0x54/0xcc sysfs_create_groups+0x24/0x40 device_add+0x6e8/0x93c device_register+0x28/0x40 __hwmon_device_register+0x4b0/0x8a0 devm_hwmon_device_register_with_groups+0x7c/0xe0 mlxbf_pmc_probe+0x1e8/0x3e0 [mlxbf_pmc] platform_probe+0x70/0x110 The mlxbf_pmc driver must call sysfs_attr_init() during the initialization of the "count_clock" data structure to avoid this warning. Fixes: 5efc800975d9 ("platform/mellanox: mlxbf-pmc: Add support for monitoring cycle count") Reviewed-by: Shravan Kumar Ramani Signed-off-by: David Thompson Link: https://patch.msgid.link/20251013155605.3589770-1-davthompson@nvidia.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen