kernel/linux.git/drivers/fwctl/pds, branch v7.0-rc7

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

pds_fwctl: Replace kzalloc + copy_from_user with memdup_user in pdsfc_fw_rpc

2025-09-22T13:33:10+00:00

Replace kzalloc() followed by copy_from_user() with memdup_user() to improve and simplify pdsfc_fw_rpc(). Return early if an error occurs and remove the obsolete 'err_out' label. No functional changes intended. Link: https://patch.msgid.link/r/20250917150941.168887-1-thorsten.blum@linux.dev Signed-off-by: Thorsten Blum Reviewed-by: Dave Jiang Reviewed-by: Jason Gunthorpe Tested-by: Brett Creeley Signed-off-by: Jason Gunthorpe

pds_fwctl: Remove the use of dev_err_probe()

2025-08-22T13:14:18+00:00

Logging messages that show some type of "out of memory" error are generally unnecessary as there is a generic message and a stack dump done by the memory subsystem. These messages generally increase kernel size without much added value[1]. The dev_err_probe() doesn't do anything when error is '-ENOMEM'. Therefore, remove the useless call to dev_err_probe(), and just return the value instead. [1]: https://lore.kernel.org/lkml/1402419340.30479.18.camel@joe-AO725/ Link: https://patch.msgid.link/r/20250820124011.474224-1-liaoyuanhong@vivo.com Signed-off-by: Liao Yuanhong Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Reviewed-by: Brett Creeley Signed-off-by: Jason Gunthorpe

pds_fwctl: Fix type and endian complaints

2025-04-11T23:47:45+00:00

Fix a number of type and endian complaints from the sparse checker. Link: https://patch.msgid.link/r/20250402165630.24288-1-shannon.nelson@amd.com Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202504020246.Dfbhxoo9-lkp@intel.com/ Signed-off-by: Shannon Nelson Reviewed-by: Jonathan Cameron Reviewed-by: Dave Jiang Signed-off-by: Jason Gunthorpe

pds_fwctl: add rpc and query support

2025-03-21T23:57:55+00:00

The pds_fwctl driver doesn't know what RPC operations are available in the firmware, so also doesn't know what scope they might have. The userland utility supplies the firmware "endpoint" and "operation" id values and this driver queries the firmware for endpoints and their available operations. The operation descriptions include the scope information which the driver uses for scope testing. Link: https://patch.msgid.link/r/20250320194412.67983-6-shannon.nelson@amd.com Reviewed-by: Leon Romanovsky Signed-off-by: Brett Creeley Reviewed-by: Jonathan Cameron Signed-off-by: Shannon Nelson Signed-off-by: Jason Gunthorpe

pds_fwctl: initial driver framework

2025-03-21T23:57:55+00:00

Initial files for adding a new fwctl driver for the AMD/Pensando PDS devices. This sets up a simple auxiliary_bus driver that registers with fwctl subsystem. It expects that a pds_core device has set up the auxiliary_device pds_core.fwctl Link: https://patch.msgid.link/r/20250320194412.67983-5-shannon.nelson@amd.com Reviewed-by: Leon Romanovsky Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Signed-off-by: Shannon Nelson Signed-off-by: Jason Gunthorpe