Re: [PATCH v2 05/16] powerpc: Skip objtool from running on drivers/crypto/vmx/aesp8-ppc.o

[Christophe Leroy <christophe.leroy@csgroup.eu>]

Le 29/08/2022 à 07:52, Sathvika Vasireddy a écrit :
> With objtool enabled, below warnings are seen when trying to build:
> 
> drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: aes_p8_set_encrypt_key+0x44: unannotated intra-function call
> 
> drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: .text+0x2448: unannotated intra-function call
> 
> drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: .text+0x2d68: unannotated intra-function call
> 
> Skip objtool from running on this file, for two main reasons:
> 
> Since this file comes from OpenSSL, and since it is a perl file
> which generates a .S file, it may not be the best choice to
> make too many code changes to such files, unless absolutely
> necessary.
> 
> Second reason is that, at least as far as the objtool --mcount
> functionality is concerned, we do not have to run objtool on
> that file because that file does not have any calls to _mcount.
> 
> Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com>

Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>

> ---
>   drivers/crypto/vmx/Makefile | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
> index 2560cfea1dec..7b41f0da6807 100644
> --- a/drivers/crypto/vmx/Makefile
> +++ b/drivers/crypto/vmx/Makefile
> @@ -9,3 +9,5 @@ targets += aesp8-ppc.S ghashp8-ppc.S
>   
>   $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE
>   	$(call if_changed,perl)
> +
> +OBJECT_FILES_NON_STANDARD_aesp8-ppc.o := y