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Sun, 26 Jun 2022 01:44:42 +0000 Date: Sun, 26 Jun 2022 09:44:36 +0800 From: kernel test robot To: Randy Dunlap Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Wim Van Sebroeck , Guenter Roeck Subject: drivers/watchdog/mtx-1_wdt.c:184:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) Message-ID: <202206260919.dDRBCnTm-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Randy, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0840a7914caa14315a3191178a9f72c742477860 commit: 76215889be9d2cd388207545424bbbe3bf80e1ea watchdog: mtx-1: drop au1000.h header file date: 1 year ago config: mips-randconfig-s032-20220626 compiler: mips64el-linux-gcc (GCC) 11.3.0 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: v0.6.4-31-g4880bd19-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76215889be9d2cd388207545424bbbe3bf80e1ea git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 76215889be9d2cd388207545424bbbe3bf80e1ea # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash drivers/watchdog/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/watchdog/mtx-1_wdt.c:184:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected long ( *write )( ... ) @@ got long ( * )( ... ) @@ drivers/watchdog/mtx-1_wdt.c:184:27: sparse: expected long ( *write )( ... ) drivers/watchdog/mtx-1_wdt.c:184:27: sparse: got long ( * )( ... ) vim +184 drivers/watchdog/mtx-1_wdt.c 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 177 b47a166ed0baaa drivers/watchdog/mtx-1_wdt.c Jan Engelhardt 2008-01-22 178 static const struct file_operations mtx1_wdt_fops = { 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 179 .owner = THIS_MODULE, 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 180 .llseek = no_llseek, ed78c2da149247 drivers/watchdog/mtx-1_wdt.c Alan Cox 2008-05-19 181 .unlocked_ioctl = mtx1_wdt_ioctl, b6dfb2477fb0bf drivers/watchdog/mtx-1_wdt.c Arnd Bergmann 2019-06-03 182 .compat_ioctl = compat_ptr_ioctl, 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 183 .open = mtx1_wdt_open, 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 @184 .write = mtx1_wdt_write, 7944d3a5a70ee5 drivers/watchdog/mtx-1_wdt.c Wim Van Sebroeck 2008-08-06 185 .release = mtx1_wdt_release, 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 186 }; 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 187 04bf3b4f5fc033 drivers/char/watchdog/mtx-1_wdt.c Florian Fainelli 2007-05-06 188 :::::: The code at line 184 was first introduced by commit :::::: 04bf3b4f5fc033adf921f2e57d034ddbebef5fe7 [WATCHDOG] MTX-1 Watchdog driver :::::: TO: Florian Fainelli :::::: CC: Wim Van Sebroeck -- 0-DAY CI Kernel Test Service https://01.org/lkp