From: kernel test robot <lkp@intel.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
Linux Memory Management List <linux-mm@kvack.org>
Subject: [linux-next:master 11862/11865] include/linux/gfp.h:20:32: error: redefinition of typedef 'gfp_t' is a C11 feature
Date: Sat, 20 Feb 2021 10:00:52 +0800 [thread overview]
Message-ID: <202102201030.HZ6Hn4he-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: abaf6f60176f1ae9d946d63e4db63164600b7b1a
commit: 784769f5b8efcd1920bde788a51e9ef69d1222b0 [11862/11865] Merge branch 'akpm-current/current'
config: x86_64-randconfig-r026-20210220 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=784769f5b8efcd1920bde788a51e9ef69d1222b0
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 784769f5b8efcd1920bde788a51e9ef69d1222b0
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from <built-in>:3:
In file included from drivers/gpu/drm/i915/display/intel_display_power.h:9:
In file included from drivers/gpu/drm/i915/display/intel_display.h:28:
In file included from include/drm/drm_util.h:36:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:12:
In file included from include/linux/kallsyms.h:12:
In file included from include/linux/mm.h:10:
>> include/linux/gfp.h:20:32: error: redefinition of typedef 'gfp_t' is a C11 feature [-Werror,-Wtypedef-redefinition]
typedef unsigned int __bitwise gfp_t; // repeated here for kernel-doc
^
include/linux/types.h:148:32: note: previous definition is here
typedef unsigned int __bitwise gfp_t;
^
1 error generated.
vim +/gfp_t +20 include/linux/gfp.h
^1da177e4c3f41 Linus Torvalds 2005-04-16 10
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 11) /**
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 12) * typedef gfp_t - Memory allocation flags.
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 13) *
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 14) * GFP flags are commonly used throughout Linux to indicate how memory
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 15) * should be allocated. The GFP acronym stands for "get free pages",
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 16) * the underlying memory allocation function. Not every GFP flag is
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 17) * supported by every function which may allocate memory. Most users
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 18) * will want to use a plain ``GFP_KERNEL``.
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 19) */
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 @20) typedef unsigned int __bitwise gfp_t; // repeated here for kernel-doc
e8805271b82793 Matthew Wilcox (Oracle 2021-02-19 21)
:::::: The code at line 20 was first introduced by commit
:::::: e8805271b82793e6d1f3de786c2278e4d622bdb6 mm/gfp: add kernel-doc for gfp_t
:::::: TO: Matthew Wilcox (Oracle) <willy@infradead.org>
:::::: CC: Stephen Rothwell <sfr@canb.auug.org.au>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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reply other threads:[~2021-02-20 2:01 UTC|newest]
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