Re: [PATCH net-next V2] net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs
From: Arnd Bergmann
Date: Tue Sep 16 2025 - 04:59:13 EST
On Tue, Sep 16, 2025, at 10:39, Patrisious Haddad wrote:
> On 9/16/2025 2:15 AM, Nathan Chancellor wrote:
>> External email: Use caution opening links or attachments
>
> ifeq ($(ARCH),arm64)
> CFLAGS_lib/neon_iowrite64_copy.o += -ffreestanding
> CFLAGS_REMOVE_lib/neon_iowrite64_copy.o += -mgeneral-regs-only
> endif
>
> Which is actually equivalent to the diff you sent, Thanks for the
> heads-up will fix and resend.
>
I think it's better to handle this inside of the inline asm itself
by adding
".arch_extension simd;\n\t"
at the start of it.
Arnd