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Message-ID: <202206260919.dDRBCnTm-lkp@intel.com>
Date: Sun, 26 Jun 2022 09:44:36 +0800
From: kernel test robot <lkp@...el.com>
To: Randy Dunlap <rdunlap@...radead.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Wim Van Sebroeck <wim@...ux-watchdog.org>,
Guenter Roeck <linux@...ck-us.net>
Subject: drivers/watchdog/mtx-1_wdt.c:184:27: sparse: sparse: incorrect type
in initializer (incompatible argument 2 (different address spaces))
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 <lkp@...el.com>
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 <florian.fainelli@...-evry.fr>
:::::: CC: Wim Van Sebroeck <wim@...ana.be>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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