[PATCH] alpha: Add syscall_get_return_value()

[He Zhe]

This is depended by https://lore.kernel.org/lkml/20210423103533.30121-3-zhe.he@windriver.com/

Thanks,
Zhe

On 4/26/21 5:16 PM, He Zhe wrote:
> audit now reuquires syscall_get_return_value instead of regs_return_value
> to retrieve syscall return code . Other architectures that support audit
> have already define this function.
>
> Signed-off-by: He Zhe <zhe.he at windriver.com>
> ---
>  arch/alpha/include/asm/syscall.h | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h
> index 11c688c1d7ec..f21babaeed85 100644
> --- a/arch/alpha/include/asm/syscall.h
> +++ b/arch/alpha/include/asm/syscall.h
> @@ -9,4 +9,10 @@ static inline int syscall_get_arch(struct task_struct *task)
>  	return AUDIT_ARCH_ALPHA;
>  }
>  
> +static inline long syscall_get_return_value(struct task_struct *task,
> +					    struct pt_regs *regs)
> +{
> +	return regs->r0;
> +}
> +
>  #endif	/* _ASM_ALPHA_SYSCALL_H */