tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 40226a3d96ef8ab8980f032681c8bfd46d63874e commit: c368362c36d3d4cedbc9a1c9caa95960912cc429 mt76: fix iv and CCMP header insertion date: 4 weeks ago config: i386-allyesconfig (attached as .config) compiler: gcc-10 (Debian 10.2.1-6) 10.2.1 20210110 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout c368362c36d3d4cedbc9a1c9caa95960912cc429 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/net/wireless/mediatek/mt76/mt7921/mcu.c: In function 'mt7921_mcu_get_cipher': 114 | return MT_CIPHER_NONE; | ^~~~~~~~~~~~~~ vim +114 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c 1c099ab44727c8 Sean Wang 2021-01-28 90 c368362c36d3d4 Ryder Lee 2021-06-17 91 static enum mcu_cipher_type 1c099ab44727c8 Sean Wang 2021-01-28 92 mt7921_mcu_get_cipher(int cipher) 1c099ab44727c8 Sean Wang 2021-01-28 93 { 1c099ab44727c8 Sean Wang 2021-01-28 94 switch (cipher) { 1c099ab44727c8 Sean Wang 2021-01-28 95 case WLAN_CIPHER_SUITE_WEP40: c368362c36d3d4 Ryder Lee 2021-06-17 96 return MCU_CIPHER_WEP40; 1c099ab44727c8 Sean Wang 2021-01-28 97 case WLAN_CIPHER_SUITE_WEP104: c368362c36d3d4 Ryder Lee 2021-06-17 98 return MCU_CIPHER_WEP104; 1c099ab44727c8 Sean Wang 2021-01-28 99 case WLAN_CIPHER_SUITE_TKIP: c368362c36d3d4 Ryder Lee 2021-06-17 100 return MCU_CIPHER_TKIP; 1c099ab44727c8 Sean Wang 2021-01-28 101 case WLAN_CIPHER_SUITE_AES_CMAC: c368362c36d3d4 Ryder Lee 2021-06-17 102 return MCU_CIPHER_BIP_CMAC_128; 1c099ab44727c8 Sean Wang 2021-01-28 103 case WLAN_CIPHER_SUITE_CCMP: c368362c36d3d4 Ryder Lee 2021-06-17 104 return MCU_CIPHER_AES_CCMP; 1c099ab44727c8 Sean Wang 2021-01-28 105 case WLAN_CIPHER_SUITE_CCMP_256: c368362c36d3d4 Ryder Lee 2021-06-17 106 return MCU_CIPHER_CCMP_256; 1c099ab44727c8 Sean Wang 2021-01-28 107 case WLAN_CIPHER_SUITE_GCMP: c368362c36d3d4 Ryder Lee 2021-06-17 108 return MCU_CIPHER_GCMP; 1c099ab44727c8 Sean Wang 2021-01-28 109 case WLAN_CIPHER_SUITE_GCMP_256: c368362c36d3d4 Ryder Lee 2021-06-17 110 return MCU_CIPHER_GCMP_256; 1c099ab44727c8 Sean Wang 2021-01-28 111 case WLAN_CIPHER_SUITE_SMS4: c368362c36d3d4 Ryder Lee 2021-06-17 112 return MCU_CIPHER_WAPI; 1c099ab44727c8 Sean Wang 2021-01-28 113 default: 1c099ab44727c8 Sean Wang 2021-01-28 @114 return MT_CIPHER_NONE; 1c099ab44727c8 Sean Wang 2021-01-28 115 } 1c099ab44727c8 Sean Wang 2021-01-28 116 } 1c099ab44727c8 Sean Wang 2021-01-28 117 :::::: The code at line 114 was first introduced by commit :::::: 1c099ab44727c8e42fe4de4d91b53cec3ef02860 mt76: mt7921: add MCU support :::::: TO: Sean Wang <sean.wang(a)mediatek.com&gt; :::::: CC: Felix Fietkau <nbd(a)nbd.name&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org