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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 20:50:06 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2023-09-27 11:59:06 +0300 |
| commit | e8b4ff6a856d02ee64a6023edf45e11827badeef (patch) | |
| tree | c1cf61b56f0bdf1fe7eb30d2f8aef355ad10e724 /drivers/pinctrl | |
| parent | 07113fea91dc50ff6f6d06893d972109d6416cd8 (diff) | |
| download | linux-e8b4ff6a856d02ee64a6023edf45e11827badeef.tar.xz | |
pinctrl: uniphier: Annotate struct uniphier_pinctrl_reg_region 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 uniphier_pinctrl_reg_region.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175006.work.421-kees@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/uniphier/pinctrl-uniphier-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c index 18d3a4f69e63..fbd0fcdb42c8 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c @@ -31,7 +31,7 @@ struct uniphier_pinctrl_reg_region { struct list_head node; unsigned int base; unsigned int nregs; - u32 vals[]; + u32 vals[] __counted_by(nregs); }; struct uniphier_pinctrl_priv { |