tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3552c3709c0e78144c11748718180441ac647ece commit: 4a2d5f663dab6614772d8e28ca190b127ba46d9d i2c: Enable compile testing for more drivers date: 10 months ago config: sh-randconfig-s032-20201109 (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-76-gf680124b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4a2d5f663dab6614772d8e28ca190b127ba46d9d git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4a2d5f663dab6614772d8e28ca190b127ba46d9d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sh
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): drivers/i2c/busses/i2c-mlxcpld.c: In function 'mlxcpld_i2c_check_busy': >> drivers/i2c/busses/i2c-mlxcpld.c:271:10: warning: 'val' is used >> uninitialized in this function [-Wuninitialized] 271 | if (val & MLXCPLD_LPCI2C_TRANS_END) | ^ vim +/val +271 drivers/i2c/busses/i2c-mlxcpld.c 6bec23bff914915 Vadim Pasternak 2016-11-20 263 6bec23bff914915 Vadim Pasternak 2016-11-20 264 /* Make sure the CPLD is ready to start transmitting. */ 6bec23bff914915 Vadim Pasternak 2016-11-20 265 static int mlxcpld_i2c_check_busy(struct mlxcpld_i2c_priv *priv) 6bec23bff914915 Vadim Pasternak 2016-11-20 266 { 6bec23bff914915 Vadim Pasternak 2016-11-20 267 u8 val; 6bec23bff914915 Vadim Pasternak 2016-11-20 268 6bec23bff914915 Vadim Pasternak 2016-11-20 269 mlxcpld_i2c_read_comm(priv, MLXCPLD_LPCI2C_STATUS_REG, &val, 1); 6bec23bff914915 Vadim Pasternak 2016-11-20 270 6bec23bff914915 Vadim Pasternak 2016-11-20 @271 if (val & MLXCPLD_LPCI2C_TRANS_END) 6bec23bff914915 Vadim Pasternak 2016-11-20 272 return 0; 6bec23bff914915 Vadim Pasternak 2016-11-20 273 6bec23bff914915 Vadim Pasternak 2016-11-20 274 return -EIO; 6bec23bff914915 Vadim Pasternak 2016-11-20 275 } 6bec23bff914915 Vadim Pasternak 2016-11-20 276 :::::: The code at line 271 was first introduced by commit :::::: 6bec23bff914915822f2c34d0555902fb2b9be1f i2c: mlxcpld: add master driver for mellanox systems :::::: TO: Vadim Pasternak <[email protected]> :::::: CC: Wolfram Sang <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
