linux-kernel - drivers/base/regmap/regmap-raw-ram.c:24:24: sparse: sparse: cast to restricted _

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Date: Tue, 16 Jan 2024 13:17:07 +0800
From: kernel test robot <lkp@...el.com>
To: Mark Brown <broonie@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/base/regmap/regmap-raw-ram.c:24:24: sparse: sparse: cast to
 restricted __be16

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   052d534373b7ed33712a63d5e17b2b6cdbce84fd
commit: 65dd2f671875b1d97b6fa9bcf7677f5e1c55f776 regmap: Provide a ram backed regmap with raw support
date:   7 months ago
config: x86_64-randconfig-123-20240106 (https://download.01.org/0day-ci/archive/20240116/202401161310.c6pnGfTT-lkp@intel.com/config)
compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240116/202401161310.c6pnGfTT-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401161310.c6pnGfTT-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/base/regmap/regmap-raw-ram.c:24:24: sparse: sparse: cast to restricted __be16
>> drivers/base/regmap/regmap-raw-ram.c:26:24: sparse: sparse: cast to restricted __le16

vim +24 drivers/base/regmap/regmap-raw-ram.c

    18	
    19	static unsigned int decode_reg(enum regmap_endian endian, const void *reg)
    20	{
    21		const u16 *r = reg;
    22	
    23		if (endian == REGMAP_ENDIAN_BIG)
  > 24			return be16_to_cpu(*r);
    25		else
  > 26			return le16_to_cpu(*r);
    27	}
    28	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki