linux-kernel - Re: drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:2393:5: warning: no previous prototype for 'mt7915_mcu_set_fixed

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Message-ID: <d59e616a0c106f626d5580ca4878965be332b069.camel@mediatek.com>
Date:   Fri, 12 Nov 2021 16:06:32 +0800
From:   Ryder Lee <ryder.lee@...iatek.com>
To:     kernel test robot <lkp@...el.com>
CC:     <kbuild-all@...ts.01.org>, <linux-kernel@...r.kernel.org>,
        Felix Fietkau <nbd@....name>
Subject: Re: drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:2393:5:
 warning: no previous prototype for 'mt7915_mcu_set_fixed_rate'

On Fri, 2021-11-12 at 14:41 +0800, kernel test robot wrote:
> tree:   
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
> head:   5833291ab6de9c3e2374336b51c814e515e8f3a5
> commit: 9a93364d6595358a11d07e7f4261ae263ae2a02a mt76: mt7915: rework
> debugfs fixed-rate knob
> date:   3 weeks ago
> config: ia64-randconfig-c003-20211025 (attached as .config)
> compiler: ia64-linux-gcc (GCC) 11.2.0
> reproduce (this is a W=1 build):
>         wget 
> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross
>  -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9a93364d6595358a11d07e7f4261ae263ae2a02a
>         git remote add linus 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 9a93364d6595358a11d07e7f4261ae263ae2a02a
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0
> make.cross ARCH=ia64 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All warnings (new ones prefixed by >>):
> 
> > > drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:2393:5: warning:
> > > no previous prototype for 'mt7915_mcu_set_fixed_rate' [-Wmissing-
> > > prototypes]
> 
>     2393 | int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev,
>          |     ^~~~~~~~~~~~~~~~~~~~~~~~

This is fixed by 
https://patchwork.kernel.org/project/linux-wireless/patch/d09619456ba3bf2d83b8929aefe00915ecce6b55.1634996863.git.lorenzo@kernel.org/