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SubjectRe: [PATCH] sparse doesn't support indirect_branch attribute
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On 02/27/2018 11:48 AM, Matthew Wilcox wrote:
>
> Don't use __attribute__((indirect_branch)) if we're compiling with
> sparse.
>
> Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
>
> diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
> index e2c7f4369eff..b6be4cc25e9d 100644
> --- a/include/linux/compiler-gcc.h
> +++ b/include/linux/compiler-gcc.h
> @@ -93,7 +93,7 @@
> #define __weak __attribute__((weak))
> #define __alias(symbol) __attribute__((alias(#symbol)))
>
> -#ifdef RETPOLINE
> +#if defined(RETPOLINE) && !defined(__CHECKER__)
> #define __noretpoline __attribute__((indirect_branch("keep")))
> #endif
>
>

I don't mind the patch, but I did send a patch for this attribute on Feb. 13, 2018,
to the sparse mailing list.

--
~Randy

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