tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers head: 4c707c1c0de83967079b4e385012fa5b00e2cd11 commit: 665097d414cd5e34cf1c21585efc611205ab1efa [1750/2384] headers/deps: net: Optimize <linux/if_ether.h> config: mips-bcm63xx_defconfig (https://download.01.org/0day-ci/archive/20220125/202201250317.7RaTIwIn-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2e58a18910867ba6795066e044293e6daf89edf5) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=... git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip sched/headers git checkout 665097d414cd5e34cf1c21585efc611205ab1efa # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/ kernel// 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 >>): In file included from arch/mips/bcm63xx/dev-enet.c:16: int (*mii_config)(struct net_device *dev, int probe, ^ 1 warning generated. vim +38 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h 3dc6475c0c9e55 Florian Fainelli 2013-06-12 9 e7300d04bd0809 Maxime Bizon 2009-08-18 10 /* e7300d04bd0809 Maxime Bizon 2009-08-18 11 * on board ethernet platform data e7300d04bd0809 Maxime Bizon 2009-08-18 12 */ e7300d04bd0809 Maxime Bizon 2009-08-18 13 struct bcm63xx_enet_platform_data { e7300d04bd0809 Maxime Bizon 2009-08-18 14 char mac_addr[ETH_ALEN]; e7300d04bd0809 Maxime Bizon 2009-08-18 15 e7300d04bd0809 Maxime Bizon 2009-08-18 16 int has_phy; e7300d04bd0809 Maxime Bizon 2009-08-18 17 e7300d04bd0809 Maxime Bizon 2009-08-18 18 /* if has_phy, then set use_internal_phy */ e7300d04bd0809 Maxime Bizon 2009-08-18 19 int use_internal_phy; e7300d04bd0809 Maxime Bizon 2009-08-18 20 e7300d04bd0809 Maxime Bizon 2009-08-18 21 /* or fill phy info to use an external one */ e7300d04bd0809 Maxime Bizon 2009-08-18 22 int phy_id; e7300d04bd0809 Maxime Bizon 2009-08-18 23 int has_phy_interrupt; e7300d04bd0809 Maxime Bizon 2009-08-18 24 int phy_interrupt; e7300d04bd0809 Maxime Bizon 2009-08-18 25 e904b94a06c77a Andrea Gelmini 2016-05-21 26 /* if has_phy, use autonegotiated pause parameters or force e7300d04bd0809 Maxime Bizon 2009-08-18 27 * them */ e7300d04bd0809 Maxime Bizon 2009-08-18 28 int pause_auto; e7300d04bd0809 Maxime Bizon 2009-08-18 29 int pause_rx; e7300d04bd0809 Maxime Bizon 2009-08-18 30 int pause_tx; e7300d04bd0809 Maxime Bizon 2009-08-18 31 e7300d04bd0809 Maxime Bizon 2009-08-18 32 /* if !has_phy, set desired forced speed/duplex */ e7300d04bd0809 Maxime Bizon 2009-08-18 33 int force_speed_100; e7300d04bd0809 Maxime Bizon 2009-08-18 34 int force_duplex_full; e7300d04bd0809 Maxime Bizon 2009-08-18 35 e7300d04bd0809 Maxime Bizon 2009-08-18 36 /* if !has_phy, set callback to perform mii device e7300d04bd0809 Maxime Bizon 2009-08-18 37 * init/remove */ e7300d04bd0809 Maxime Bizon 2009-08-18 @38 int (*mii_config)(struct net_device *dev, int probe, e7300d04bd0809 Maxime Bizon 2009-08-18 39 int (*mii_read)(struct net_device *dev, e7300d04bd0809 Maxime Bizon 2009-08-18 40 int phy_id, int reg), e7300d04bd0809 Maxime Bizon 2009-08-18 41 void (*mii_write)(struct net_device *dev, e7300d04bd0809 Maxime Bizon 2009-08-18 42 int phy_id, int reg, int val)); 3dc6475c0c9e55 Florian Fainelli 2013-06-12 43 3dc6475c0c9e55 Florian Fainelli 2013-06-12 44 /* DMA channel enable mask */ 3dc6475c0c9e55 Florian Fainelli 2013-06-12 45 u32 dma_chan_en_mask; 3dc6475c0c9e55 Florian Fainelli 2013-06-12 46 3dc6475c0c9e55 Florian Fainelli 2013-06-12 47 /* DMA channel interrupt mask */ 3dc6475c0c9e55 Florian Fainelli 2013-06-12 48 u32 dma_chan_int_mask; 3dc6475c0c9e55 Florian Fainelli 2013-06-12 49 3dc6475c0c9e55 Florian Fainelli 2013-06-12 50 /* DMA engine has internal SRAM */ 3dc6475c0c9e55 Florian Fainelli 2013-06-12 51 bool dma_has_sram; 3dc6475c0c9e55 Florian Fainelli 2013-06-12 52 3dc6475c0c9e55 Florian Fainelli 2013-06-12 53 /* DMA channel register width */ 3dc6475c0c9e55 Florian Fainelli 2013-06-12 54 unsigned int dma_chan_width; 3dc6475c0c9e55 Florian Fainelli 2013-06-12 55 3dc6475c0c9e55 Florian Fainelli 2013-06-12 56 /* DMA descriptor shift */ 3dc6475c0c9e55 Florian Fainelli 2013-06-12 57 unsigned int dma_desc_shift; 1942e482258d8c Jonas Gorski 2017-12-17 58 1942e482258d8c Jonas Gorski 2017-12-17 59 /* dma channel ids */ 1942e482258d8c Jonas Gorski 2017-12-17 60 int rx_chan; 1942e482258d8c Jonas Gorski 2017-12-17 61 int tx_chan; e7300d04bd0809 Maxime Bizon 2009-08-18 62 }; e7300d04bd0809 Maxime Bizon 2009-08-18 63 :::::: The code at line 38 was first introduced by commit :::::: e7300d04bd0809eb7ea10a2ed8c729459f816e36 MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs. :::::: TO: Maxime Bizon <mbizon(a)freebox.fr&gt; :::::: CC: Ralf Baechle <ralf(a)linux-mips.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org