linux-kernel - Re: [PATCH -next] zram: fix build errors, depends on BLOCK

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Message-ID: <4C2382AF.2030807@vflare.org>
Date:	Thu, 24 Jun 2010 21:37:11 +0530
From:	Nitin Gupta <ngupta@...are.org>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>,
	devel@...verdev.osuosl.org, linux-next@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, gregkh@...e.de
Subject: Re: [PATCH -next] zram: fix build errors, depends on BLOCK

On 06/24/2010 09:23 PM, Randy Dunlap wrote:
> On 06/24/10 08:47, Nitin Gupta wrote:
>> On 06/24/2010 08:02 PM, Randy Dunlap wrote:
>>> On 06/23/10 21:36, Nitin Gupta wrote:
>>>> On 06/24/2010 08:57 AM, Randy Dunlap wrote:
>>>>> From: Randy Dunlap <randy.dunlap@...cle.com>
>>>>>
>>>>> Fix 49 zram build errors in one swoop.  Examples:
>>>>>
>>>>> drivers/staging/zram/zram_drv.c:225: error: dereferencing pointer to incomplete type
>>>>> drivers/staging/zram/zram_drv.c:226: error: implicit declaration of function 'bio_for_each_segment'
>>>>> drivers/staging/zram/zram_drv.c:226: error: expected ';' before '{' token
>>>>> drivers/staging/zram/zram_drv.c:281: error: implicit declaration of function 'bio_endio'
>>>>> drivers/staging/zram/zram_drv.c:285: error: implicit declaration of function 'bio_io_error'
>>>>> drivers/staging/zram/zram_drv.c:545: error: implicit declaration of function 'set_capacity'
>>>>> drivers/staging/zram/zram_drv.c:548: error: implicit declaration of function 'queue_flag_set_unlocked'
>>>>> drivers/staging/zram/zram_drv.c:548: error: 'QUEUE_FLAG_NONROT' undeclared (first use in this function)
>>>>> drivers/staging/zram/zram_drv.c:548: error: dereferencing pointer to incomplete type
>>>>>
>>>>
>>>>
>>>> Thanks for the fix. Strangely, I didn't get any of these
>>>> errors when I compiled against mainline.
>>>
>>> This patch isn't against mainline, it's against linux-next.
>>> See subject's "[PATCH -next]" hint.
>>>
>>
>> Randy, I understood that your patch is against linux-next. I was just wondering
>> why the error did not come up when I applied and tested this whole zram thing
>> against linux mainline.
> 
> Did you test a build with CONFIG_BLOCK disabled?
>

Ah, now I got it.    No, I didn't test with CONFIG_BLOCK disabled.

Thanks,
Nitin




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