kernel/linux.git/drivers/net/arcnet, 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

net: arcnet: com20020-pci: fix support for 2.5Mbit cards

2026-02-17T11:14:21+00:00

Commit 8c14f9c70327 ("ARCNET: add com20020 PCI IDs with metadata") converted the com20020-pci driver to use a card info structure instead of a single flag mask in driver_data. However, it failed to take into account that in the original code, driver_data of 0 indicates a card with no special flags, not a card that should not have any card info structure. This introduced a null pointer dereference when cards with no flags were probed. Commit bd6f1fd5d33d ("net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()") then papered over this issue by rejecting cards with no driver_data instead of resolving the problem at its source. Fix the original issue by introducing a new card info structure for 2.5Mbit cards that does not set any flags and using it if no driver_data is present. Fixes: 8c14f9c70327 ("ARCNET: add com20020 PCI IDs with metadata") Fixes: bd6f1fd5d33d ("net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()") Cc: stable@vger.kernel.org Reviewed-by: Simon Horman Signed-off-by: Ethan Nelson-Moore Link: https://patch.msgid.link/20260213045510.32368-1-enelsonmoore@gmail.com Signed-off-by: Paolo Abeni

net: arcnet: com20020-pci: use module_pci_driver

2026-02-10T09:16:33+00:00

The only thing this driver's init/exit functions do is call pci_register/unregister_driver, and in the case of the init function, print an unnecessary message. Replace them with module_pci_driver to simplify the code. Signed-off-by: Ethan Nelson-Moore Reviewed-by: Simon Horman Link: https://patch.msgid.link/20260205070632.37516-1-enelsonmoore@gmail.com Signed-off-by: Paolo Abeni

net: remove unnecessary module_init/exit functions

2026-02-03T01:25:23+00:00

Many network drivers have unnecessary empty module_init and module_exit functions. Remove them (including some that just print a message). Note that if a module_init function exists, a module_exit function must also exist; otherwise, the module cannot be unloaded. Signed-off-by: Ethan Nelson-Moore Acked-by: Marc Kleine-Budde Acked-by: Michael Grzeschik Reviewed-by: Ido Schimmel Acked-by: Ping-Ke Shih Acked-by: Toke Høiland-Jørgensen Link: https://patch.msgid.link/20260131004327.18112-1-enelsonmoore@gmail.com Signed-off-by: Jakub Kicinski

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

arcnet: Add NULL check in com20020pci_probe()

2025-04-04T14:30:51+00:00

devm_kasprintf() returns NULL when memory allocation fails. Currently, com20020pci_probe() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue and ensure no resources are left allocated. Fixes: 6b17a597fc2f ("arcnet: restoring support for multiple Sohard Arcnet cards") Signed-off-by: Henry Martin Link: https://patch.msgid.link/20250402135036.44697-1-bsdhenrymartin@gmail.com Signed-off-by: Jakub Kicinski

net: arcnet: com20020-isa: add missing MODULE_DESCRIPTION() macro

2024-06-20T00:21:12+00:00

With ARCH=m68k, make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/net/arcnet/com20020-isa.o Add the missing invocation of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/20240618-md-m68k-drivers-net-arcnet-v1-1-90e42bc58102@quicinc.com Signed-off-by: Jakub Kicinski

archnet: Convert from tasklet to BH workqueue

2024-04-09T02:44:09+00:00

The only generic interface to execute asynchronously in the BH context is tasklet; however, it's marked deprecated and has some design flaws. To replace tasklets, BH workqueue support was recently added. A BH workqueue behaves similarly to regular workqueues except that the queued work items are executed in the BH context. This patch converts drivers/net/archnet/* from tasklet to BH workqueue. Based on the work done by Tejun Heo Branch: https://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-6.10 Signed-off-by: Allen Pais Link: https://lore.kernel.org/r/20240403162306.20258-1-apais@linux.microsoft.com Signed-off-by: Jakub Kicinski