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

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Message-ID: <CAF+7xWkezyMrnt-_0EVtNWtAB2v7pceATB8HEbdC8oqOY0camw@mail.gmail.com>
Date:	Mon, 22 Aug 2011 08:06:32 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	Ryan Mallon <rmallon@...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,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: Re: [PATCH] video: ep93xx-fb: add missing include of linux/module.h

2011/8/22 Ryan Mallon <rmallon@...il.com>:
> 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

hi Ryan,

The patch is against linux-next tree.
I got build error for ep93xx-fb.c and ep93xx_bl.c on linux-next tree.
( next-20110819 )

Regards,
Axel

>
>
>>
>>>   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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