linux-kernel - Re: [PATCH] wifi: mt76: add tx checksum offload for mt7915, mt7921, mt7981 and mt7986

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Message-ID: <202510200105.T000lujD-lkp@intel.com>
Date: Mon, 20 Oct 2025 01:45:01 +0800
From: kernel test robot <lkp@...el.com>
To: Aleksander Jan Bajkowski <olek2@...pl>, nbd@....name,
	lorenzo@...nel.org, ryder.lee@...iatek.com,
	shayne.chen@...iatek.com, sean.wang@...iatek.com,
	matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
	howard-yh.hsu@...iatek.com, StanleyYP.Wang@...iatek.com,
	rosenp@...il.com, luoxueqin@...inos.cn, chad@...roe.io,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Cc: oe-kbuild-all@...ts.linux.dev
Subject: Re: [PATCH] wifi: mt76: add tx checksum offload for mt7915, mt7921,
 mt7981 and mt7986

Hi Aleksander,

kernel test robot noticed the following build warnings:

[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main linus/master v6.18-rc1 next-20251017]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Aleksander-Jan-Bajkowski/wifi-mt76-add-tx-checksum-offload-for-mt7915-mt7921-mt7981-and-mt7986/20251019-235515
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link:    https://lore.kernel.org/r/20251019155316.3537185-1-olek2%40wp.pl
patch subject: [PATCH] wifi: mt76: add tx checksum offload for mt7915, mt7921, mt7981 and mt7986
config: i386-buildonly-randconfig-003-20251019 (https://download.01.org/0day-ci/archive/20251020/202510200105.T000lujD-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251020/202510200105.T000lujD-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510200105.T000lujD-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/skbuff.h:29,
                    from drivers/net/wireless/mediatek/mt76/mt76.h:12,
                    from drivers/net/wireless/mediatek/mt76/mt76_connac.h:7,
                    from drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h:7,
                    from drivers/net/wireless/mediatek/mt76/mt792x.h:10,
                    from drivers/net/wireless/mediatek/mt76/mt792x_core.c:7:
   drivers/net/wireless/mediatek/mt76/mt792x_core.c: In function 'mt792x_init_wiphy':
>> include/linux/netdev_features.h:104:33: warning: statement with no effect [-Wunused-value]
     104 | #define __NETIF_F_BIT(bit)      ((netdev_features_t)1 << (bit))
         |                                 ^
   include/linux/netdev_features.h:105:33: note: in expansion of macro '__NETIF_F_BIT'
     105 | #define __NETIF_F(name)         __NETIF_F_BIT(NETIF_F_##name##_BIT)
         |                                 ^~~~~~~~~~~~~
   include/linux/netdev_features.h:119:33: note: in expansion of macro '__NETIF_F'
     119 | #define NETIF_F_IP_CSUM         __NETIF_F(IP_CSUM)
         |                                 ^~~~~~~~~
   drivers/net/wireless/mediatek/mt76/mt792x_core.c:636:17: note: in expansion of macro 'NETIF_F_IP_CSUM'
     636 |                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
         |                 ^~~~~~~~~~~~~~~


vim +104 include/linux/netdev_features.h

a19f2a6df28e0c Michał Mirosław 2011-11-15  102  
a19f2a6df28e0c Michał Mirosław 2011-11-15  103  /* copy'n'paste compression ;) */
a19f2a6df28e0c Michał Mirosław 2011-11-15 @104  #define __NETIF_F_BIT(bit)	((netdev_features_t)1 << (bit))
a19f2a6df28e0c Michał Mirosław 2011-11-15  105  #define __NETIF_F(name)		__NETIF_F_BIT(NETIF_F_##name##_BIT)
a19f2a6df28e0c Michał Mirosław 2011-11-15  106  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki