Re: [PATCH net-next] net: skb: prevent the split of kfree_skb_reason() by gcc

[Miguel Ojeda]

On Thu, Aug 11, 2022 at 2:07 PM <menglong8.dong@xxxxxxxxx> wrote:
>
> diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
> index 445e80517cab..51f7c13bca98 100644
> --- a/include/linux/compiler_attributes.h
> +++ b/include/linux/compiler_attributes.h
> @@ -371,4 +371,6 @@
>   */
>  #define __weak                          __attribute__((__weak__))
>
> +#define __nofnsplit                     __attribute__((optimize("O1")))
> +
>  #endif /* __LINUX_COMPILER_ATTRIBUTES_H */

Two notes on this: please use the double underscore form:
`__optimize__` and keep the file sorted (it should go after
`__overloadable__`, since we sort by the actual attribute name).

Thanks!

Cheers,
Miguel