linux-kernel - arch/arm64/kvm/va_layout.c:292:6: warning: no previous prototype for 'kvm_compute_final_ctr

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Date:   Sat, 1 Jan 2022 09:46:33 +0800
From:   kernel test robot <lkp@...el.com>
To:     Marc Zyngier <maz@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Quentin Perret <qperret@...gle.com>
Subject: arch/arm64/kvm/va_layout.c:292:6: warning: no previous prototype for
 'kvm_compute_final_ctr_el0'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8008293888188c3923f5bd8a69370dae25ed14e5
commit: 755db23420a1ce4b740186543432983e9bbe713e KVM: arm64: Generate final CTR_EL0 value when running in Protected mode
date:   9 months ago
config: arm64-randconfig-r035-20211231 (https://download.01.org/0day-ci/archive/20220101/202201010911.XqBcZAZG-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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/torvalds/linux.git/commit/?id=755db23420a1ce4b740186543432983e9bbe713e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 755db23420a1ce4b740186543432983e9bbe713e
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kvm/ drivers/edac/

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/arm64/kvm/va_layout.c:188:6: warning: no previous prototype for 'kvm_patch_vector_branch' [-Wmissing-prototypes]
     188 | void kvm_patch_vector_branch(struct alt_instr *alt,
         |      ^~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/va_layout.c:286:6: warning: no previous prototype for 'kvm_get_kimage_voffset' [-Wmissing-prototypes]
     286 | void kvm_get_kimage_voffset(struct alt_instr *alt,
         |      ^~~~~~~~~~~~~~~~~~~~~~
>> arch/arm64/kvm/va_layout.c:292:6: warning: no previous prototype for 'kvm_compute_final_ctr_el0' [-Wmissing-prototypes]
     292 | void kvm_compute_final_ctr_el0(struct alt_instr *alt,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +/kvm_compute_final_ctr_el0 +292 arch/arm64/kvm/va_layout.c

   291	
 > 292	void kvm_compute_final_ctr_el0(struct alt_instr *alt,

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