arch/m68k/sun3/sun3ints.c:33:13: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f)

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0babf683783ddca06551537c6781e413cfe8d27b
commit: 72e70a0e7ac7c422843eb8bbf192e820e9ccd24d m68k: sun3: Change led_pattern[] to unsigned char
date:   12 months ago
config: m68k-randconfig-r131-20240914 (https://download.01.org/0day-ci/archive/20240915/202409150822.m4wt3d6X-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20240915/202409150822.m4wt3d6X-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/202409150822.m4wt3d6X-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> arch/m68k/sun3/sun3ints.c:33:13: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f)

vim +33 arch/m68k/sun3/sun3ints.c

    31	
    32	static unsigned char led_pattern[8] = {
  > 33		(u8)~(0x80), (u8)~(0x01),
    34		(u8)~(0x40), (u8)~(0x02),
    35		(u8)~(0x20), (u8)~(0x04),
    36		(u8)~(0x10), (u8)~(0x08)
    37	};
    38	

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