linux-kernel - Re: [PATCH 1/2] MIPS: ralink: Fix build error due to missing header

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Date:   Wed, 19 Jul 2017 11:55:59 +0100
From:   Harvey Hunt <Harvey.Hunt@...tec.com>
To:     Ralf Baechle <ralf@...ux-mips.org>
CC:     "#4 . 11+" <stable@...r.kernel.org>,
        John Crispin <john@...ozen.org>, <linux-mips@...ux-mips.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] MIPS: ralink: Fix build error due to missing header

Hi Ralf,

On 18/07/17 23:01, Ralf Baechle wrote:
> On Tue, Jul 18, 2017 at 02:25:45PM +0100, Harvey Hunt wrote:
> 
>> Previously, <linux/module.h> was included before ralink_regs.h in all
>> ralink files - leading to <linux/io.h> being implicitly included.
>>
>> After commit 26dd3e4ff9ac ("MIPS: Audit and remove any unnecessary
>> uses of module.h") removed the inclusion of module.h from multiple
>> places, some ralink platforms failed to build with the following error:
>>
>> In file included from arch/mips/ralink/mt7620.c:17:0:
>> ./arch/mips/include/asm/mach-ralink/ralink_regs.h: In function ‘rt_sysc_w32’:
>> ./arch/mips/include/asm/mach-ralink/ralink_regs.h:38:2: error: implicit declaration of function ‘__raw_writel’ [-Werror=implicit-function-declaration]
>>    __raw_writel(val, rt_sysc_membase + reg);
>>    ^
>> ./arch/mips/include/asm/mach-ralink/ralink_regs.h: In function ‘rt_sysc_r32’:
>> ./arch/mips/include/asm/mach-ralink/ralink_regs.h:43:2: error: implicit declaration of function ‘__raw_readl’ [-Werror=implicit-function-declaration]
>>    return __raw_readl(rt_sysc_membase + reg);
>>
>> Fix this by including <linux/io.h>.
> 
> Looks sensible, applied.  But I'm wondering why I don't see this in my
> test builds.

Thanks for merging them. There isn't currently a defconfig for this 
platform, but I am working on adding one.

> 
>    Ralf
> 

Thanks,

Harvey