linux-kernel - arch/powerpc/mm/book3s64/pkeys.c:289:20: error: unused function 'update_current_thread

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Message-ID: <202103232035.XKgm11Ev-lkp@intel.com>
Date:   Tue, 23 Mar 2021 20:51:41 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>,
        Sandipan Das <sandipan@...ux.ibm.com>
Subject: arch/powerpc/mm/book3s64/pkeys.c:289:20: error: unused function
 'update_current_thread_iamr'

Hi Aneesh,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   84196390620ac0e5070ae36af84c137c6216a7dc
commit: 48a8ab4eeb8271f2a0e2ca3cf80844a59acca153 powerpc/book3s64/pkeys: Don't update SPRN_AMR when in kernel mode.
date:   4 months ago
config: powerpc64-randconfig-r016-20210323 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 78a65cd945d006ff02f9d24d9cc20a302ed93b08)
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 powerpc64 cross compiling tool for clang build
        # apt-get install binutils-powerpc64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=48a8ab4eeb8271f2a0e2ca3cf80844a59acca153
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 48a8ab4eeb8271f2a0e2ca3cf80844a59acca153
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 

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

All errors (new ones prefixed by >>):

   arch/powerpc/mm/book3s64/pkeys.c:284:20: error: unused function 'update_current_thread_amr' [-Werror,-Wunused-function]
   static inline void update_current_thread_amr(u64 value)
                      ^
>> arch/powerpc/mm/book3s64/pkeys.c:289:20: error: unused function 'update_current_thread_iamr' [-Werror,-Wunused-function]
   static inline void update_current_thread_iamr(u64 value)
                      ^
   2 errors generated.


vim +/update_current_thread_iamr +289 arch/powerpc/mm/book3s64/pkeys.c

   288	
 > 289	static inline void update_current_thread_iamr(u64 value)
   290	{
   291		if (!likely(pkey_execute_disable_supported))
   292			return;
   293	
   294		current->thread.regs->iamr = value;
   295	}
   296	

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

Download attachment ".config.gz" of type "application/gzip" (32448 bytes)