Re: [PATCH][next] can: ucan: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

From: Kees Cook
Date: Mon Sep 26 2022 - 18:01:31 EST


On Mon, Sep 26, 2022 at 04:43:56PM -0500, Gustavo A. R. Silva wrote:
> Zero-length arrays are deprecated and we are moving towards adopting
> C99 flexible-array members, instead. So, replace zero-length arrays
> declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
> helper macro.
>
> This helper allows for flexible-array members in unions.
>
> Link: https://github.com/KSPP/linux/issues/193
> Link: https://github.com/KSPP/linux/issues/214
> Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

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Kees Cook