linux-kernel - Re: [PATCH 2/2] powerpc/vdso64: remove meaningless vgettimeofday.o build rule

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Date:   Thu, 28 Jan 2021 13:01:56 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Greentime Hu <green.hu@...il.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] powerpc/vdso64: remove meaningless vgettimeofday.o
 build rule

On Thu, Dec 24, 2020 at 2:12 AM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> VDSO64 is only built for the 64-bit kernel, hence vgettimeofday.o is
> built by the generic rule in scripts/Makefile.build.
>
> This line does not provide anything useful.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>


Michael, please take a  look at this too.



> ---
>
>  arch/powerpc/kernel/vdso64/Makefile | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
> index b50b39fedf74..422addf394c7 100644
> --- a/arch/powerpc/kernel/vdso64/Makefile
> +++ b/arch/powerpc/kernel/vdso64/Makefile
> @@ -32,8 +32,6 @@ asflags-y := -D__VDSO64__ -s
>  targets += vdso64.lds
>  CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
>
> -$(obj)/vgettimeofday.o: %.o: %.c FORCE
> -
>  # link rule for the .so file, .lds has to be first
>  $(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) $(obj)/vgettimeofday.o FORCE
>         $(call if_changed,vdso64ld_and_check)
> --
> 2.27.0
>


-- 
Best Regards
Masahiro Yamada