diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 19:51:55 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-09-25 09:39:44 +0200 |
| commit | 997a29bbb1e0d6d10ebc2291fac604c4cded5828 (patch) | |
| tree | 744e6ffb50ce9d4c149a6a680a8d82867a21065b /drivers/misc | |
| parent | eeprom: at24: Drop at24_get_chip_data() (diff) | |
| download | linux-997a29bbb1e0d6d10ebc2291fac604c4cded5828.tar.xz linux-997a29bbb1e0d6d10ebc2291fac604c4cded5828.zip | |
eeprom: at24: Annotate struct at24_data 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 at24_data.
[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>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/eeprom/at24.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index af83aca452b7..7dfd7fdb423e 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -92,7 +92,7 @@ struct at24_data { * them for us. */ u8 bank_addr_shift; - struct regmap *client_regmaps[]; + struct regmap *client_regmaps[] __counted_by(num_addresses); }; /* |