linux-kernel - Re: linux-next: build warning after merge of the wireless-next tree

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Date:	Wed, 03 Apr 2013 21:58:04 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Stephen Rothwell <sfr@...b.auug.org.au>,
	"John W. Linville" <linville@...driver.com>
CC:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build warning after merge of the wireless-next tree

On 04/03/2013 09:36 PM, Stephen Rothwell wrote:
> Hi Larry,
>
> On Wed, 03 Apr 2013 20:17:01 -0500 Larry Finger <Larry.Finger@...inger.net> wrote:
>>
>> On 04/03/2013 08:04 PM, Stephen Rothwell wrote:
>>>
>>> On Thu, 4 Apr 2013 12:00:43 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>>>>
>>>> After merging the wireless-next tree, today's linux-next build (x86_64
>>>> allmodconfig) produced this warning:
>>>>
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>> x86_64-linux-gcc: warning: drivers/net/wireless/rtlwifi: linker input file unused because linking not done
>>>>
>>>> I have no idea what caused that.
>>>
>>> Though I suspect commit 8b138d4898a0 ("rtlwifi: rtl8188ee: Enable build
>>> of new driver") - I wonder if the gap between the "-I" and
>>> "drivers/net/wireless/rtlwifi" added to ccflags-y is the cause?
>>>
>>> I am using gcc 4.6.3 if that matters.
>>
>> I use 4.7.2.
>>
>> I'll send a patch with the space removed to see if that helps.
>
> I just tested without the space and it fixes the problem for my Debian
> 4.7.2 compiler.  Removing the space also fixes the problem with finding
> include files (after I removed the "../" bits again).

Stephan,

Ah, that was the real error. Thanks for testing.

John: Please take my patch of this evening entitles "[PATCH] rtlwifi: rtl8188ee: 
Fix linker warnings" and drop the one by Chen, Chien-Chia entitled "[PATCH] 
rtlwifi: rtl8188ee: Fix wrong header path". If we put the ../ into the header 
paths, I'll just have to take them out later. We might as well leave them out.

Larry


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