Re: [PATCH 2/4] x86/vdso: Use 32-bit CHECKFLAGS for compat vDSO

[Thomas Gleixner]

On Fri, Jan 16 2026 at 08:40, Thomas Weißschuh wrote:
> Manually override the CHECKFLAGS for the compat vDSO with the correct
> 32-bit configuration.

Fun. I just fixed the same thing half an hour ago:

   https://lore.kernel.org/lkml/20260117215542.342638347@xxxxxxxxxx/

> Reported-by: Sun Jian <sun.jian.kdev@xxxxxxxxx>
> Closes: https://lore.kernel.org/lkml/20260114084529.1676356-1-sun.jian.kdev@xxxxxxxxx/
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
> ---
>  arch/x86/entry/vdso/Makefile | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
> index f247f5f5cb44..ab571ad9b9ac 100644
> --- a/arch/x86/entry/vdso/Makefile
> +++ b/arch/x86/entry/vdso/Makefile
> @@ -142,7 +142,10 @@ ifneq ($(RETPOLINE_VDSO_CFLAGS),)
>  endif
>  endif
>  
> +CHECKFLAGS_32 := $(CHECKFLAGS) -U__x86_64__ -D__i386__ -m32

Hmm. That keeps -m64. Seems not to matter much, but substituting both
seems to be more correct.

Thanks,

        tglx