linux-kernel - Re: [PATCH] MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa

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Message-ID: <20200527113527.GE13537@alpha.franken.de>
Date:   Wed, 27 May 2020 13:35:27 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     YuanJunQing <yuanjunqing66@....com>
Cc:     paulburton@...nel.org, chenhc@...ote.com,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        liulichao@...ngson.cn
Subject: Re: [PATCH] MIPS: Fix IRQ tracing when call handle_fpe() and
 handle_msa_fpe()

On Wed, May 27, 2020 at 02:11:30PM +0800, YuanJunQing wrote:
>  Register "a1" is unsaved in this function,
>  when CONFIG_TRACE_IRQFLAGS is enabled,
>  the TRACE_IRQS_OFF macro will call trace_hardirqs_off(),
>  and this may change register "a1".
>  The changed register "a1" as argument will be send
>  to do_fpe() and do_msa_fpe().
> 
> Signed-off-by: YuanJunQing <yuanjunqing66@....com>
> ---
>  arch/mips/kernel/genex.S | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)

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 ]