linux-kernel - [peterz-queue:x86/wip.sls 5/5] arch/x86/um/../lib/atomic64_386

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Date:   Sat, 4 Dec 2021 11:50:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [peterz-queue:x86/wip.sls 5/5]
 arch/x86/um/../lib/atomic64_386_32.S:31: warning: "RET" redefined

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/wip.sls
head:   6e193eea4eb731c1da2764591f0ced73ca9f326b
commit: 6e193eea4eb731c1da2764591f0ced73ca9f326b [5/5] x86: Add straight-line-speculation mitigation
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20211204/202112041135.yWAi9LKU-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=6e193eea4eb731c1da2764591f0ced73ca9f326b
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue x86/wip.sls
        git checkout 6e193eea4eb731c1da2764591f0ced73ca9f326b
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/x86/um/../lib/atomic64_386_32.S:31: warning: "RET" redefined
      31 | #define RET \
         | 
   In file included from include/linux/linkage.h:8,
                    from arch/x86/um/../lib/atomic64_386_32.S:8:
   arch/x86/include/asm/linkage.h:24: note: this is the location of the previous definition
      24 | #define RET ret
         | 


vim +/RET +31 arch/x86/um/../lib/atomic64_386_32.S

417484d47e1157 Luca Barbieri  2010-08-12  30  
30246557a06bb2 Luca Barbieri  2010-08-06 @31  #define RET \
30246557a06bb2 Luca Barbieri  2010-08-06  32  	UNLOCK v; \
fac0bf5b834b04 Peter Zijlstra 2021-12-03  33  	RET
a7e926abc3adfb Luca Barbieri  2010-02-24  34  

:::::: The code at line 31 was first introduced by commit
:::::: 30246557a06bb20618bed906a06d1e1e0faa8bb4 x86, asm: Refactor atomic64_386_32.S to support old binutils and be cleaner

:::::: TO: Luca Barbieri <luca@...a-barbieri.com>
:::::: CC: H. Peter Anvin <hpa@...or.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org