tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c8c109546a19613d323a319d0c921cb1f317e629 commit: 435af89786c674583b188f7322fee5c03894b8b7 rtc: New driver for RTC in Netronix embedded controller date: 8 months ago config: riscv-randconfig-s031-20211109 (attached as .config) compiler: riscv64-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # 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 435af89786c674583b188f7322fee5c03894b8b7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash block/ drivers/hid/ drivers/i2c/busses/ drivers/message/fusion/ drivers/net/ethernet/ drivers/net/wireless/intel/iwlwifi/ drivers/pci/ drivers/remoteproc/ drivers/rtc/ drivers/staging/rts5208/ drivers/staging/vc04_services/ drivers/vdpa/ drivers/video/fbdev/ net/qrtr/ net/sched/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/rtc/rtc-ntxec.c:91:53: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:91:53: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c:92:51: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int def @@ got restricted __be16 @@ drivers/rtc/rtc-ntxec.c:92:51: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:92:51: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c:93:52: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int def @@ got restricted __be16 @@ drivers/rtc/rtc-ntxec.c:93:52: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:93:52: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c:94:50: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int def @@ got restricted __be16 @@ drivers/rtc/rtc-ntxec.c:94:50: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:94:50: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c:95:51: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int def @@ got restricted __be16 @@ drivers/rtc/rtc-ntxec.c:95:51: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:95:51: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c:96:53: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int def @@ got restricted __be16 @@ drivers/rtc/rtc-ntxec.c:96:53: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:96:53: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c:97:53: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int def @@ got restricted __be16 @@ drivers/rtc/rtc-ntxec.c:97:53: sparse: expected unsigned int def drivers/rtc/rtc-ntxec.c:97:53: sparse: got restricted __be16 drivers/rtc/rtc-ntxec.c: note: in included file: include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int include/linux/mfd/ntxec.h:31:22: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __be16 @@ got int @@ include/linux/mfd/ntxec.h:31:22: sparse: expected restricted __be16 include/linux/mfd/ntxec.h:31:22: sparse: got int vim +91 drivers/rtc/rtc-ntxec.c 78 79 static int ntxec_set_time(struct device *dev, struct rtc_time *tm) 80 { 81 struct ntxec_rtc *rtc = dev_get_drvdata(dev); 82 83 /* 84 * To avoid time overflows while we're writing the full date/time, 85 * set the seconds field to zero before doing anything else. For the 86 * next 59 seconds (plus however long it takes until the RTC's next 87 * update of the second field), the seconds field will not overflow 88 * into the other fields. 89 */ 90 struct reg_sequence regs[] = { 92 { NTXEC_REG_WRITE_YEAR, ntxec_reg8(tm->tm_year - 100) }, 93 { NTXEC_REG_WRITE_MONTH, ntxec_reg8(tm->tm_mon + 1) }, 94 { NTXEC_REG_WRITE_DAY, ntxec_reg8(tm->tm_mday) }, 95 { NTXEC_REG_WRITE_HOUR, ntxec_reg8(tm->tm_hour) }, 96 { NTXEC_REG_WRITE_MINUTE, ntxec_reg8(tm->tm_min) }, 97 { NTXEC_REG_WRITE_SECOND, ntxec_reg8(tm->tm_sec) }, 98 }; 99 100 return regmap_multi_reg_write(rtc->ec->regmap, regs, ARRAY_SIZE(regs)); 101 } 102 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org