Re: [PATCH net-next 2/2] tun: AF_XDP Rx zero-copy support
From: kernel test robot
Date: Sun Jan 28 2024 - 04:06:42 EST
Hi Yunjian,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Yunjian-Wang/xsk-Remove-non-zero-dma_page-check-in-xp_assign_dev/20240124-174011
base: net-next/main
patch link: https://lore.kernel.org/r/1706089075-16084-1-git-send-email-wangyunjian%40huawei.com
patch subject: [PATCH net-next 2/2] tun: AF_XDP Rx zero-copy support
config: s390-defconfig (https://download.01.org/0day-ci/archive/20240128/202401281639.yBaJZ4Sh-lkp@xxxxxxxxx/config)
compiler: s390-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240128/202401281639.yBaJZ4Sh-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401281639.yBaJZ4Sh-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
>> drivers/net/tun.c:1298:5: warning: no previous prototype for 'tun_xsk_pool_setup' [-Wmissing-prototypes]
1298 | int tun_xsk_pool_setup(struct net_device *dev, struct xsk_buff_pool *pool,
| ^~~~~~~~~~~~~~~~~~
vim +/tun_xsk_pool_setup +1298 drivers/net/tun.c
1297
> 1298 int tun_xsk_pool_setup(struct net_device *dev, struct xsk_buff_pool *pool,
1299 u16 qid)
1300 {
1301 return pool ? tun_xsk_pool_enable(dev, pool, qid) :
1302 tun_xsk_pool_disable(dev, qid);
1303 }
1304
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