linux-kernel - Re: [PATCH] video: ep93xx-fb: add missing include of linux/module.h

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Date:	Mon, 22 Aug 2011 09:54:47 +1000
From:	Ryan Mallon <rmallon@...il.com>
To:	Axel Lin <axel.lin@...il.com>
CC:	linux-kernel@...r.kernel.org,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	Paul Mundt <lethal@...ux-sh.org>, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH] video: ep93xx-fb: add missing include of linux/module.h

On 22/08/11 09:41, Ryan Mallon wrote:
> On 22/08/11 00:39, Axel Lin wrote:
>> ep93xx-fb.c uses interfaces from linux/module.h,
>> so it should include that file.  This patch fixes below build errors.
>
> What actually changed to make these files broken? Did some other 
> header previously include module.h for us? How many other drivers are 
> broken?
>
> Anyway, the change is okay.
>
> Acked-by: Ryan Mallon <rmallon@...il.com>

Actually, having a second look at this it does not look right.

drivers/video/ep93xx-fb.c includes linux/platform.h (as its first 
include), which includes linux/driver.h, which includes linux/module.h.

Just tested on Linus' latest tree and both this driver and the ep93xx 
backlight driver build fine. What kernel version are you using?

~Ryan


>
>>    CC      drivers/video/ep93xx-fb.o
>> drivers/video/ep93xx-fb.c:120: error: expected ')' before 'int'
>> drivers/video/ep93xx-fb.c:122: error: expected ')' before string 
>> constant
>> drivers/video/ep93xx-fb.c:409: error: 'THIS_MODULE' undeclared here 
>> (not in a function)
>> drivers/video/ep93xx-fb.c:645: error: expected declaration specifiers 
>> or '...' before string constant
>> drivers/video/ep93xx-fb.c:645: warning: data definition has no type 
>> or storage class
>> drivers/video/ep93xx-fb.c:645: warning: type defaults to 'int' in 
>> declaration of 'MODULE_DESCRIPTION'
>> drivers/video/ep93xx-fb.c:645: warning: function declaration isn't a 
>> prototype
>> drivers/video/ep93xx-fb.c:646: error: expected declaration specifiers 
>> or '...' before string constant
>> drivers/video/ep93xx-fb.c:646: warning: data definition has no type 
>> or storage class
>> drivers/video/ep93xx-fb.c:646: warning: type defaults to 'int' in 
>> declaration of 'MODULE_ALIAS'
>> drivers/video/ep93xx-fb.c:646: warning: function declaration isn't a 
>> prototype
>> drivers/video/ep93xx-fb.c:647: error: expected declaration specifiers 
>> or '...' before string constant
>> drivers/video/ep93xx-fb.c:647: warning: data definition has no type 
>> or storage class
>> drivers/video/ep93xx-fb.c:647: warning: type defaults to 'int' in 
>> declaration of 'MODULE_AUTHOR'
>> drivers/video/ep93xx-fb.c:647: warning: function declaration isn't a 
>> prototype
>> drivers/video/ep93xx-fb.c:649: error: expected declaration specifiers 
>> or '...' before string constant
>> drivers/video/ep93xx-fb.c:649: warning: data definition has no type 
>> or storage class
>> drivers/video/ep93xx-fb.c:649: warning: type defaults to 'int' in 
>> declaration of 'MODULE_LICENSE'
>> drivers/video/ep93xx-fb.c:649: warning: function declaration isn't a 
>> prototype
>> make[2]: *** [drivers/video/ep93xx-fb.o] Error 1
>> make[1]: *** [drivers/video] Error 2
>> make: *** [drivers] Error 2
>>
>> Signed-off-by: Axel Lin<axel.lin@...il.com>
>> ---
>>   drivers/video/ep93xx-fb.c |    1 +
>>   1 files changed, 1 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/video/ep93xx-fb.c b/drivers/video/ep93xx-fb.c
>> index 40e5f17..8133a9d 100644
>> --- a/drivers/video/ep93xx-fb.c
>> +++ b/drivers/video/ep93xx-fb.c
>> @@ -17,6 +17,7 @@
>>    *
>>    */
>>
>> +#include<linux/module.h>
>>   #include<linux/platform_device.h>
>>   #include<linux/dma-mapping.h>
>>   #include<linux/slab.h>
>

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