From: kernel test robot <lkp@intel.com>
To: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: clang-built-linux@googlegroups.com, Will Deacon <will@kernel.org>,
kbuild-all@lists.01.org, James Morse <james.morse@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: [arm64:for-next/kexec 9/13] arch/arm64/kernel/machine_kexec.c:62:5: warning: no previous prototype for function 'machine_kexec_post_load'
Date: Wed, 3 Feb 2021 07:01:31 +0800 [thread overview]
Message-ID: <202102030727.gqTokACH-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/kexec
head: d1bbc35fcab28668c8992c4d5777234b794d7306
commit: 4c3c31230c912d8f2e49c775555aadf79a43d418 [9/13] arm64: kexec: move relocation function setup
config: arm64-randconfig-r005-20210202 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 275c6af7d7f1ed63a03d05b4484413e447133269)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?id=4c3c31230c912d8f2e49c775555aadf79a43d418
git remote add arm64 https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
git fetch --no-tags arm64 for-next/kexec
git checkout 4c3c31230c912d8f2e49c775555aadf79a43d418
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/arm64/kernel/machine_kexec.c:62:5: warning: no previous prototype for function 'machine_kexec_post_load' [-Wmissing-prototypes]
int machine_kexec_post_load(struct kimage *kimage)
^
arch/arm64/kernel/machine_kexec.c:62:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int machine_kexec_post_load(struct kimage *kimage)
^
static
arch/arm64/kernel/machine_kexec.c:238:6: warning: no previous prototype for function 'machine_crash_shutdown' [-Wmissing-prototypes]
void machine_crash_shutdown(struct pt_regs *regs)
^
arch/arm64/kernel/machine_kexec.c:238:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void machine_crash_shutdown(struct pt_regs *regs)
^
static
2 warnings generated.
vim +/machine_kexec_post_load +62 arch/arm64/kernel/machine_kexec.c
61
> 62 int machine_kexec_post_load(struct kimage *kimage)
63 {
64 void *reloc_code = page_to_virt(kimage->control_code_page);
65
66 memcpy(reloc_code, arm64_relocate_new_kernel,
67 arm64_relocate_new_kernel_size);
68 kimage->arch.kern_reloc = __pa(reloc_code);
69
70 /* Flush the reloc_code in preparation for its execution. */
71 __flush_dcache_area(reloc_code, arm64_relocate_new_kernel_size);
72 flush_icache_range((uintptr_t)reloc_code, (uintptr_t)reloc_code +
73 arm64_relocate_new_kernel_size);
74
75 return 0;
76 }
77
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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