linux-kernel - Re: [PATCH V4] LoongArch: Provide kernel fpu functions

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Message-ID: <037d7f13866e03dd2cc0dd4307479fa9a7498b19.camel@xry111.site>
Date:   Fri, 10 Mar 2023 16:33:13 +0800
From:   Xi Ruoyao <xry111@...111.site>
To:     WANG Xuerui <kernel@...0n.name>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Arnd Bergmann <arnd@...db.de>,
        Huacai Chen <chenhuacai@...nel.org>
Cc:     loongarch@...ts.linux.dev, linux-arch@...r.kernel.org,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Guo Ren <guoren@...nel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        linux-kernel@...r.kernel.org, loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH V4] LoongArch: Provide kernel fpu functions

On Fri, 2023-03-10 at 14:33 +0800, WANG Xuerui wrote:
> We should probably provide more archaeology or legal evidence as to why 
> the in-kernel FPU ops must be GPL-only. After all the status quo is that 
> among all arches that provide such ops, only the x86 ones are exported
> GPL, so if loongarch should go GPL for this interface then probably 
> everyone else should too. It's not only affecting loongarch IMO.

If it's forced by GPL we should change the other arch's similar function
to EXPORT_GPL immediately.

-- 
Xi Ruoyao <xry111@...111.site>
School of Aerospace Science and Technology, Xidian University