From: kernel test robot <lkp@intel.com>
To: Chris Morgan <macromorgan@hotmail.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Dmitry Torokhov <dmitry.torokhov@gmail.com>
Subject: include/asm-generic/unaligned.h:119:16: sparse: sparse: cast truncates bits from constant value (aa01a0 becomes a0)
Date: Tue, 12 Sep 2023 08:46:48 +0800 [thread overview]
Message-ID: <202309120820.bRjnU9fZ-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
commit: 66603243f5283f7f28c795f09e7c2167233df0bd Input: add driver for Hynitron cstxxx touchscreens
date: 11 months ago
config: i386-randconfig-061-20230909 (https://download.01.org/0day-ci/archive/20230912/202309120820.bRjnU9fZ-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230912/202309120820.bRjnU9fZ-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309120820.bRjnU9fZ-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/input/touchscreen/hynitron_cstxxx.c: note: in included file (through arch/x86/include/generated/asm/unaligned.h):
>> include/asm-generic/unaligned.h:119:16: sparse: sparse: cast truncates bits from constant value (aa01a0 becomes a0)
>> include/asm-generic/unaligned.h:120:20: sparse: sparse: cast truncates bits from constant value (aa01 becomes 1)
>> include/asm-generic/unaligned.h:119:16: sparse: sparse: cast truncates bits from constant value (ab00d0 becomes d0)
>> include/asm-generic/unaligned.h:120:20: sparse: sparse: cast truncates bits from constant value (ab00 becomes 0)
vim +119 include/asm-generic/unaligned.h
803f4e1eab7a89 Arnd Bergmann 2021-05-08 116
803f4e1eab7a89 Arnd Bergmann 2021-05-08 117 static inline void __put_unaligned_le24(const u32 val, u8 *p)
803f4e1eab7a89 Arnd Bergmann 2021-05-08 118 {
803f4e1eab7a89 Arnd Bergmann 2021-05-08 @119 *p++ = val;
803f4e1eab7a89 Arnd Bergmann 2021-05-08 @120 *p++ = val >> 8;
803f4e1eab7a89 Arnd Bergmann 2021-05-08 121 *p++ = val >> 16;
803f4e1eab7a89 Arnd Bergmann 2021-05-08 122 }
803f4e1eab7a89 Arnd Bergmann 2021-05-08 123
:::::: The code at line 119 was first introduced by commit
:::::: 803f4e1eab7a8938ba3a3c30dd4eb5e9eeef5e63 asm-generic: simplify asm/unaligned.h
:::::: TO: Arnd Bergmann <arnd@arndb.de>
:::::: CC: Arnd Bergmann <arnd@arndb.de>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2023-09-12 0:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-12 0:46 kernel test robot [this message]
2023-09-15 16:47 ` include/asm-generic/unaligned.h:119:16: sparse: sparse: cast truncates bits from constant value (aa01a0 becomes a0) Chris Morgan
2023-11-16 14:45 kernel test robot
2023-11-17 1:30 kernel test robot
2023-11-17 8:53 kernel test robot
2023-11-17 16:47 kernel test robot
2024-01-03 22:52 kernel test robot
2024-01-06 17:41 kernel test robot
2024-01-07 0:42 ` Dmitry Torokhov
2024-01-07 5:54 ` Linus Torvalds
2024-01-07 13:03 ` Luc Van Oostenryck
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