Re: [PATCH] video: fbdev: mmp: Annotate struct mmphw_ctrl with __counted_by

On 9/23/23 18:33, Gustavo A. R. Silva wrote:

On 9/22/23 11:51, Kees Cook wrote:

quoted

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 mmphw_ctrl.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci

Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Kees Cook <redacted>

Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Both fbdev patches applied to fbdev git tree.

Thank you Kees!

Helge