linux-kernel - Re: [PATCH 01/16] xtensa: FSF: define XCHAL_HAVE

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Message-ID: <CAMo8BfJs-yygU8UbS5nsSNVVVRVhJMvXAcgScNAX9NNP6tt4Eg@mail.gmail.com>
Date:   Wed, 20 Sep 2023 04:53:05 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-kernel@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Chris Zankel <chris@...kel.net>
Subject: Re: [PATCH 01/16] xtensa: FSF: define XCHAL_HAVE_DIV32

On Tue, Sep 19, 2023 at 10:21 PM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> When variant FSF is set, XCHAL_HAVE_DIV32 is not defined,
> so add the define for FSF to prevent build warnings:
>
> arch/xtensa/lib/divsi3.S:9:5: warning: "XCHAL_HAVE_DIV32" is not defined, evaluates to 0 [-Wundef]
>     9 | #if XCHAL_HAVE_DIV32
> arch/xtensa/lib/modsi3.S:9:5: warning: "XCHAL_HAVE_DIV32" is not defined, evaluates to 0 [-Wundef]
>     9 | #if XCHAL_HAVE_DIV32
>
> Fixes: 173d6681380a ("xtensa: remove extra header files")
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: lore.kernel.org/r/202309150556.t0yCdv3g-lkp@...el.com
> Cc: Chris Zankel <chris@...kel.net>
> Cc: Max Filippov <jcmvbkbc@...il.com>
> ---
>  arch/xtensa/variants/fsf/include/variant/core.h |    1 +
>  1 file changed, 1 insertion(+)

If this configuration overlay doesn't define that macro then other
configurations
from that era may have similar issue. I've posted a different fix that
adds a default
definition for XCHAL_HAVE_DIV32 to asm/core.h instead.

-- 
Thanks.
-- Max