net: i825xx: Use absolute_pointer for memcpy from fixed memory location
authorGuenter Roeck <linux@roeck-us.net>
Wed, 15 Sep 2021 03:52:25 +0000 (20:52 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 6 Oct 2021 08:23:40 +0000 (10:23 +0200)
commit8a86445a0067110a3c046a125ee0895ec5a83c85
tree281ce7fa1ecdd2b99af2a52ddc96370d4fb9b80d
parent255b49c68c49ac09d6a3f341183896406ce8fdd5
net: i825xx: Use absolute_pointer for memcpy from fixed memory location

[ Upstream commit dff2d13114f0beec448da9b3716204eb34b0cf41 ]

gcc 11.x reports the following compiler warning/error.

  drivers/net/ethernet/i825xx/82596.c: In function 'i82596_probe':
  arch/m68k/include/asm/string.h:72:25: error:
'__builtin_memcpy' reading 6 bytes from a region of size 0 [-Werror=stringop-overread]

Use absolute_pointer() to work around the problem.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/i825xx/82596.c