linux-kernel - RE: Reqeust export symbol for API in arch/arm64/*

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Message-ID: <000001d623a7$14bc6590$3e3530b0$@samsung.com>
Date:   Wed, 6 May 2020 22:05:56 +0900
From:   최동혁/DONGHYEOK CHOE 
        <d7271.choe@...sung.com>
To:     "'Will Deacon'" <will@...nel.org>
Cc:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <hosung0.kim@...sung.com>,
        <changki.kim@...sung.com>, <hajun.sung@...sung.com>,
        <gregkh@...gle.com>, <youngmin.nam@...sung.com>
Subject: RE: Reqeust export symbol for API in arch/arm64/*


> -----Original Message-----
> From: Will Deacon <will@...nel.org>
> Sent: Wednesday, May 6, 2020 9:53 PM
> To: �ֵ���/DONGHYEOK CHOE <d7271.choe@...sung.com>
> Cc: linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> hosung0.kim@...sung.com; changki.kim@...sung.com; hajun.sung@...sung.com;
> gregkh@...gle.com; youngmin.nam@...sung.com
> Subject: Re: Reqeust export symbol for API in arch/arm64/*
> 
> On Wed, May 06, 2020 at 09:46:45PM +0900,  ֵ   /DONGHYEOK CHOE wrote:
> > I am software engineer in charge of BSP (Samsung SOC vendor).
> >
> > Recently, Google introduced GKI from Android R version.
> > We cannot use mainline API without 'export symbol' by the GKI policy.
> > But we want to make an arm64 specific vendor driver in {kernel source
> > root}/drivers/soc/samsung/*.
> >
> > Could you support us to use the below APIs?
> 
> Sorry, but as a general rule of thumb the kernel doesn't EXPORT symbols
> that are not used by in-tree modules. You'll need to submit your drivers
> along with the patches doing the exports if they are to be considered for
> inclusion.
> 
> Thanks,
> 
> Will

Thank you for your quick response.
I'll try.

Thanks