diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-15 13:09:48 -0700 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2023-11-01 11:28:26 +0000 |
| commit | 679cec1809b4140add538f28638546ea2f5c8959 (patch) | |
| tree | 19a0bc853914749b30910c6ce3ec6d7f3c7e624f /drivers/leds | |
| parent | ff861ca9f2d54a81d10cd3e8d2384fe17c10fdc4 (diff) | |
leds: cr0014114: Annotate struct cr0014114 with __counted_by
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 cr0014114.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230915200948.never.728-kees@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-cr0014114.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/leds/leds-cr0014114.c b/drivers/leds/leds-cr0014114.c index b33bca397ea6..c9914fc51f20 100644 --- a/drivers/leds/leds-cr0014114.c +++ b/drivers/leds/leds-cr0014114.c @@ -56,7 +56,7 @@ struct cr0014114 { struct spi_device *spi; u8 *buf; unsigned long delay; - struct cr0014114_led leds[]; + struct cr0014114_led leds[] __counted_by(count); }; static void cr0014114_calc_crc(u8 *buf, const size_t len) |