Re: [PATCH] pinctrl: uniphier: Annotate struct uniphier_pinctrl_reg_region with __counted_by

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Fri, Sep 22, 2023 at 7:50 PM Kees Cook <keescook@xxxxxxxxxxxx> wrote:

> 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@xxxxxxxxxx>
> Cc: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Cc: linux-gpio@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>

Excellent!
Patch applied.

Yours,
Linus Walleij