Re: [PATCH] x86/mm: Fix warning on build with X86_MEM_ENCRYPT=y

From: David Rientjes
Date: Wed Jan 26 2022 - 13:57:19 EST


On Wed, 26 Jan 2022, Kirill A. Shutemov wrote:

> So far, AMD_MEM_ENCRYPT is the only user of X86_MEM_ENCRYPT. TDX will be
> the second. It will make mem_encrypt.c build without AMD_MEM_ENCRYPT,
> which triggers a warning:
>
> arch/x86/mm/mem_encrypt.c:69:13: warning: no previous prototype for
> function 'mem_encrypt_init' [-Wmissing-prototypes]
>
> Fix it by moving mem_encrypt_init() declaration outside of #ifdef
> CONFIG_AMD_MEM_ENCRYPT.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Fixes: 20f07a044a76 ("x86/sev: Move common memory encryption code to mem_encrypt.c")

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>