[PATCH] arm64: cpufeature: Replace inline with __always_inline for GCS checks

[Mark Brown]

On Fri, Aug 15, 2025 at 09:19:05AM +0800, 15074444048 at 163.com wrote:

> When use __always_inline The compiler will almost certainly inline
> system_supports_gcs, which allows the compiler to optimize and check
> earlier during the compilation phase. If system_supports_gcs() returns
> false, then the line of code restore_gcs_context (&user) will not
> actually be generated, so the compiler will not report an error.

> -static inline bool system_supports_gcs(void)
> +static __always_inline bool system_supports_gcs(void)
>  {
>  	return alternative_has_cap_unlikely(ARM64_HAS_GCS);
>  }

If we're doing this for one of the system_supports_foo() functions we
should do it for all of them consistently, not just for one random one.
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