From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 15 Sep 2021 19:11:48 +0000 (-0700)
Subject: Merge branch 'absolute-pointer' (patches from Guenter)
X-Git-Tag: v5.15~262
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d6efd3f18763ac84098fa318742cd2a3bfdf4d72;p=platform%2Fkernel%2Flinux-starfive.git

Merge branch 'absolute-pointer' (patches from Guenter)

Merge absolute_pointer macro series from Guenter Roeck:
 "Kernel test builds currently fail for several architectures with error
  messages such as the following.

  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]

  Such warnings may be reported by gcc 11.x for string and memory
  operations on fixed addresses if gcc's builtin functions are used for
  those operations.

  This series introduces absolute_pointer() to fix the problem.
  absolute_pointer() disassociates a pointer from its originating symbol
  type and context, and thus prevents gcc from making assumptions about
  pointers passed to memory operations"

* emailed patches from Guenter Roeck <linux@roeck-us.net>:
  alpha: Use absolute_pointer to define COMMAND_LINE
  alpha: Move setup.h out of uapi
  net: i825xx: Use absolute_pointer for memcpy from fixed memory location
  compiler.h: Introduce absolute_pointer macro
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d6efd3f18763ac84098fa318742cd2a3bfdf4d72