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| author | Kees Cook <keescook@chromium.org> | 2023-09-15 13:10:10 -0700 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2023-11-01 11:28:31 +0000 |
| commit | bcbadbb29cb6aa6f51505514ae635fd467ebca43 (patch) | |
| tree | 0943729083fe30065741404018fa4c4a974e7070 /drivers/leds | |
| parent | 52cd75108a426bdd43161d0e73e7bee95d103ed1 (diff) | |
| download | linux-bcbadbb29cb6aa6f51505514ae635fd467ebca43.tar.gz | |
leds: lm3697: Annotate struct lm3697 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 lm3697.
[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/20230915201010.never.399-kees@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-lm3697.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/leds/leds-lm3697.c b/drivers/leds/leds-lm3697.c index cfb8ac220db6d..380d17a58fe93 100644 --- a/drivers/leds/leds-lm3697.c +++ b/drivers/leds/leds-lm3697.c @@ -89,7 +89,7 @@ struct lm3697 { int bank_cfg; int num_banks; - struct lm3697_led leds[]; + struct lm3697_led leds[] __counted_by(num_banks); }; static const struct reg_default lm3697_reg_defs[] = { |