linux-kernel - Re: [RFC] MIPS: Fix a compilation issue

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Message-ID: <20230127162811.GC6090@alpha.franken.de>
Date:   Fri, 27 Jan 2023 17:28:11 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     xurui <xurui@...inos.cn>
Cc:     ralf@...ux-mips.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, rdunlap@...radead.org
Subject: Re: [RFC] MIPS: Fix a compilation issue

On Wed, Jan 18, 2023 at 04:59:12PM +0800, xurui wrote:
> arch/mips/include/asm/mach-rc32434/pci.h:377:
> cc1: error: result of ‘-117440512 << 16’ requires 44 bits to represent, but ‘int’ only has 32 bits [-Werror=shift-overflow=]
> 
> I guss we don`t need a left shift here?
> 
> Signed-off-by: xurui <xurui@...inos.cn>
> ---
>  arch/mips/include/asm/mach-rc32434/pci.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/include/asm/mach-rc32434/pci.h b/arch/mips/include/asm/mach-rc32434/pci.h
> index 9a6eefd12757..3eb767c8a4ee 100644
> --- a/arch/mips/include/asm/mach-rc32434/pci.h
> +++ b/arch/mips/include/asm/mach-rc32434/pci.h
> @@ -374,7 +374,7 @@ struct pci_msu {
>  				 PCI_CFG04_STAT_SSE | \
>  				 PCI_CFG04_STAT_PE)
>  
> -#define KORINA_CNFG1		((KORINA_STAT<<16)|KORINA_CMD)
> +#define KORINA_CNFG1		(KORINA_STAT | KORINA_CMD)
>  
>  #define KORINA_REVID		0
>  #define KORINA_CLASS_CODE	0
> -- 
> 2.25.1

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 ]