linux-kernel - Re: [PATCH] MIPS: Fix fallback march for SB1

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Message-ID: <ZpWZKcm+IieM+eZm@alpha.franken.de>
Date: Mon, 15 Jul 2024 23:48:25 +0200
From: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To: Jiaxun Yang <jiaxun.yang@...goat.com>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] MIPS: Fix fallback march for SB1

On Sun, Jul 14, 2024 at 10:52:57AM +0800, Jiaxun Yang wrote:
> Fallback march for SB1 should be mips64 instead of mips64r1.
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202407111851.LwDasTcp-lkp@intel.com/
> Fixes: bfc0a330c1b4 ("MIPS: Fallback CPU -march flag to ISA level if unsupported")
> Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
> ---
>  arch/mips/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
> index 80aecba24892..5785a3d5ccfb 100644
> --- a/arch/mips/Makefile
> +++ b/arch/mips/Makefile
> @@ -170,7 +170,7 @@ cflags-$(CONFIG_CPU_NEVADA)	+= $(call cc-option,-march=rm5200,-march=mips4) \
>  			-Wa,--trap
>  cflags-$(CONFIG_CPU_RM7000)	+= $(call cc-option,-march=rm7000,-march=mips4) \
>  			-Wa,--trap
> -cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1,-march=mips64r1) \
> +cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1,-march=mips64) \
>  			-Wa,--trap
>  cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mdmx)
>  cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mips3d)
> 
> ---
> base-commit: 3fe121b622825ff8cc995a1e6b026181c48188db
> change-id: 20240714-fix-flags-9f8ee5d7c033

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]