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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 19:53:55 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2023-09-22 22:54:36 +0200 |
| commit | 7daa3bd4b0b4de1446cd4e6a66bba022101ae9ee (patch) | |
| tree | cc74e912fd299322f045b479de00ab04be9151ee /drivers/power | |
| parent | power: supply: pm8916_lbc: observe EXTCON config setting (diff) | |
| download | linux-7daa3bd4b0b4de1446cd4e6a66bba022101ae9ee.tar.xz linux-7daa3bd4b0b4de1446cd4e6a66bba022101ae9ee.zip | |
power: supply: axp20x_ac_power: Annotate struct axp20x_ac_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_ac_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/20230922175355.work.006-kees@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/axp20x_ac_power.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/power/supply/axp20x_ac_power.c b/drivers/power/supply/axp20x_ac_power.c index 19a118633115..e5733cb9e19e 100644 --- a/drivers/power/supply/axp20x_ac_power.c +++ b/drivers/power/supply/axp20x_ac_power.c @@ -45,7 +45,7 @@ struct axp20x_ac_power { struct iio_channel *acin_i; bool has_acin_path_sel; unsigned int num_irqs; - unsigned int irqs[]; + unsigned int irqs[] __counted_by(num_irqs); }; static irqreturn_t axp20x_ac_power_irq(int irq, void *devid) |