kernel/linux.git/drivers/hte/hte.c, branch v7.1

hte: replace use of system_unbound_wq with system_dfl_wq

2026-02-23T18:11:17+00:00

This patch continues the effort to refactor workqueue APIs, which has begun with the changes introducing new workqueues and a new alloc_workqueue flag: commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") The point of the refactoring is to eventually alter the default behavior of workqueues to become unbound by default so that their workload placement is optimized by the scheduler. Before that to happen after a careful review and conversion of each individual case, workqueue users must be converted to the better named new workqueues with no intended behaviour changes: system_wq -> system_percpu_wq system_unbound_wq -> system_dfl_wq This way the old obsolete workqueues (system_wq, system_unbound_wq) can be removed in the future. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Signed-off-by: Dipen Patel

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

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

This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds

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

hte: Use kasprintf() instead of fixed buffer formatting

2023-10-27T21:09:22+00:00

Improve readability and maintainability by replacing a hardcoded string allocation and formatting by the use of the kasprintf() helper. Signed-off-by: Andy Shevchenko Reviewed-by: Dipen Patel Signed-off-by: Dipen Patel

hte: Annotate struct hte_device with __counted_by

2023-10-03T20:18:39+00:00

Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct hte_device. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Dipen Patel Cc: timestamp@lists.linux.dev Signed-off-by: Kees Cook Reviewed-by: Gustavo A. R. Silva Reviewed-by: Dipen Patel Reviewed-by: Justin Stitt Signed-off-by: Dipen Patel

hte: Explicitly include correct DT includes

2023-08-28T18:31:06+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it was merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Dipen Patel Link: https://lore.kernel.org/r/20230714174600.4057041-1-robh@kernel.org Signed-off-by: Rob Herring

hte: Use device_match_of_node()

2023-04-26T22:44:19+00:00

Replace the open-code with device_match_of_node(). Signed-off-by: ye xingchen Acked-by: Dipen Patel Signed-off-by: Dipen Patel

hte: Use of_property_present() for testing DT property presence

2023-04-26T22:43:57+00:00

It is preferred to use typed property access functions (i.e. of_property_read_ functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring Acked-by: Dipen Patel Signed-off-by: Dipen Patel

hte: Uninitialized variable in hte_ts_get()

2022-05-20T13:54:41+00:00

The "free_name" variable is sometimes used without being initialized. Fixes: 31ab09b42188 ("drivers: Add hardware timestamp engine (HTE) subsystem") Signed-off-by: Dan Carpenter Acked-by: Dipen Patel Signed-off-by: Thierry Reding

hte: Fix off by one in hte_push_ts_ns()

2022-05-10T13:35:52+00:00

The &chip->gdev->ei[] array has chip->nlines elements so this > comparison needs to be >= to prevent an out of bounds access. The gdev->ei[] array is allocated in hte_register_chip(). Fixes: 31ab09b42188 ("drivers: Add hardware timestamp engine (HTE) subsystem") Signed-off-by: Dan Carpenter Reviewed-by: Dipen Patel Acked-by: Dipen Patel Signed-off-by: Thierry Reding