From: kernel test robot <lkp@intel.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: drivers/watchdog/at91rm9200_wdt.c:219:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces))
Date: Wed, 21 Apr 2021 06:04:25 +0800 [thread overview]
Message-ID: <202104210610.aabCgEYB-lkp@intel.com> (raw)
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Hi Masahiro,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7af08140979a6e7e12b78c93b8625c8d25b084e2
commit: ea29b20a828511de3348334e529a3d046a180416 init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM
date: 5 weeks ago
config: s390-randconfig-s032-20210420 (attached as .config)
compiler: s390-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: v0.6.3-330-g09ec74f6-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea29b20a828511de3348334e529a3d046a180416
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ea29b20a828511de3348334e529a3d046a180416
# 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__' W=1 ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/watchdog/at91rm9200_wdt.c:219:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected long ( *write )( ... ) @@ got long ( * )( ... ) @@
drivers/watchdog/at91rm9200_wdt.c:219:27: sparse: expected long ( *write )( ... )
drivers/watchdog/at91rm9200_wdt.c:219:27: sparse: got long ( * )( ... )
vim +219 drivers/watchdog/at91rm9200_wdt.c
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 211
62322d2554d2f9 drivers/char/watchdog/at91_wdt.c Arjan van de Ven 2006-07-03 212 static const struct file_operations at91wdt_fops = {
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 213 .owner = THIS_MODULE,
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 214 .llseek = no_llseek,
2760600da2a13d drivers/watchdog/at91rm9200_wdt.c Alan Cox 2008-05-19 215 .unlocked_ioctl = at91_wdt_ioctl,
b6dfb2477fb0bf drivers/watchdog/at91rm9200_wdt.c Arnd Bergmann 2019-06-03 216 .compat_ioctl = compat_ptr_ioctl,
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 217 .open = at91_wdt_open,
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 218 .release = at91_wdt_close,
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 @219 .write = at91_wdt_write,
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 220 };
853807fb500a94 drivers/char/watchdog/at91_wdt.c Andrew Victor 2006-03-14 221
:::::: The code at line 219 was first introduced by commit
:::::: 853807fb500a9442d88646b7be92bfa51334f8e8 [WATCHDOG] at91_wdt.c - Atmel AT91RM9200 watchdog driver
:::::: TO: Andrew Victor <andrew@sanpeople.com>
:::::: CC: Wim Van Sebroeck <wim@iguana.be>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next reply other threads:[~2021-04-20 22:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 22:04 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-04-20 23:41 kernel test robot
2021-04-20 22:12 kernel test robot
2021-04-20 21:53 kernel test robot
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