linux-kernel - Re: [PATCH -next] brd: make symbol rd

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Date:   Sat, 29 Oct 2016 21:57:39 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Wei Yongjun <weiyj.lk@...il.com>, Jan Kara <jack@...e.cz>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] brd: make symbol rd_size static

On 10/29/2016 10:10 AM, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@...wei.com>
>
> Fixes the following sparse warning:
>
> drivers/block/brd.c:411:15: warning:
>  symbol 'rd_size' was not declared. Should it be static?

We just tried this, it's used in arm:

arch/arm/kernel/atags_parse.c

static int __init parse_tag_ramdisk(const struct tag *tag)
{
         extern int rd_size, rd_image_start, rd_prompt, rd_doload;
[...]

-- 
Jens Axboe