diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:53:58 -0700 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2023-09-22 22:54:52 +0200 |
| commit | de1ca06bc0364a58ba0889d97a7a094d87dd5477 (patch) | |
| tree | f4a3a4c6339fde830589cf150680fa21bc7a3d17 /drivers/power | |
| parent | 7daa3bd4b0b4de1446cd4e6a66bba022101ae9ee (diff) | |
power: supply: axp20x_usb_power: Annotate struct axp20x_usb_power 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 axp20x_usb_power.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230922175358.work.774-kees@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/axp20x_usb_power.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c index bde17406c130..e23308ad4cc7 100644 --- a/drivers/power/supply/axp20x_usb_power.c +++ b/drivers/power/supply/axp20x_usb_power.c @@ -73,7 +73,7 @@ struct axp20x_usb_power { unsigned int old_status; unsigned int online; unsigned int num_irqs; - unsigned int irqs[]; + unsigned int irqs[] __counted_by(num_irqs); }; static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power) |