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Subject[tglx-devel:x86/fpu-3-kvm 26/65] arch/x86/kernel/ptrace.c:1311:13: error: no previous prototype for function 'update_regset_xstate_info'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git x86/fpu-3-kvm
head: 567aa15fa5d336b777bd277f52412bd9f8be1585
commit: 22553a4cfe428edf5b399552abc2ffd22918c4a9 [26/65] x86/fpu: Remove internal.h dependency from fpu/signal.h
config: x86_64-buildonly-randconfig-r003-20211015 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6069a6a5049497a32a50a49661c2f4169078bdba)
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
# https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id=22553a4cfe428edf5b399552abc2ffd22918c4a9
git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git
git fetch --no-tags tglx-devel x86/fpu-3-kvm
git checkout 22553a4cfe428edf5b399552abc2ffd22918c4a9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 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 >>):

>> arch/x86/kernel/ptrace.c:1311:13: error: no previous prototype for function 'update_regset_xstate_info' [-Werror,-Wmissing-prototypes]
void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
^
arch/x86/kernel/ptrace.c:1311:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
^
static
1 error generated.


vim +/update_regset_xstate_info +1311 arch/x86/kernel/ptrace.c

5b3efd500854d4 Suresh Siddha 2010-02-11 1310
404f6aac9b3ef5 Kees Cook 2016-08-08 @1311 void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
5b3efd500854d4 Suresh Siddha 2010-02-11 1312 {
5b3efd500854d4 Suresh Siddha 2010-02-11 1313 #ifdef CONFIG_X86_64
5b3efd500854d4 Suresh Siddha 2010-02-11 1314 x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
5b3efd500854d4 Suresh Siddha 2010-02-11 1315 #endif
5b3efd500854d4 Suresh Siddha 2010-02-11 1316 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
5b3efd500854d4 Suresh Siddha 2010-02-11 1317 x86_32_regsets[REGSET_XSTATE].n = size / sizeof(u64);
5b3efd500854d4 Suresh Siddha 2010-02-11 1318 #endif
5b3efd500854d4 Suresh Siddha 2010-02-11 1319 xstate_fx_sw_bytes[USER_XSTATE_XCR0_WORD] = xstate_mask;
5b3efd500854d4 Suresh Siddha 2010-02-11 1320 }
5b3efd500854d4 Suresh Siddha 2010-02-11 1321

:::::: The code at line 1311 was first introduced by commit
:::::: 404f6aac9b3ef595735feca99979db084ea48315 x86: Apply more __ro_after_init and const

:::::: TO: Kees Cook <keescook@chromium.org>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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