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Subjectarch/powerpc/kernel/optprobes.c:34:1: error: unused function 'is_kprobe_ppc_optinsn_slot'
Hi Cédric,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d72cd4ad4174cfd2257c426ad51e4f53bcfde9c9
commit: bb21e1b6c5352d62d866e9236ed427f632cd537b powerpc/optprobes: Make patch_imm64_load_insns() static
date: 3 months ago
config: powerpc64-randconfig-r015-20210429 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9131a078901b00e68248a27a4f8c4b11bb1db1ae)
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=bb21e1b6c5352d62d866e9236ed427f632cd537b
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout bb21e1b6c5352d62d866e9236ed427f632cd537b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc64

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/powerpc/kernel/optprobes.c:34:1: error: unused function 'is_kprobe_ppc_optinsn_slot' [-Werror,-Wunused-function]
DEFINE_INSN_CACHE_OPS(ppc_optinsn);
^
include/linux/kprobes.h:306:20: note: expanded from macro 'DEFINE_INSN_CACHE_OPS'
static inline bool is_kprobe_##__name##_slot(unsigned long addr) \
^
<scratch space>:132:1: note: expanded from here
is_kprobe_ppc_optinsn_slot
^
1 error generated.


vim +/is_kprobe_ppc_optinsn_slot +34 arch/powerpc/kernel/optprobes.c

51c9c084399352 Anju T 2017-02-08 20
51c9c084399352 Anju T 2017-02-08 21 #define TMPL_CALL_HDLR_IDX \
51c9c084399352 Anju T 2017-02-08 22 (optprobe_template_call_handler - optprobe_template_entry)
51c9c084399352 Anju T 2017-02-08 23 #define TMPL_EMULATE_IDX \
51c9c084399352 Anju T 2017-02-08 24 (optprobe_template_call_emulate - optprobe_template_entry)
51c9c084399352 Anju T 2017-02-08 25 #define TMPL_RET_IDX \
51c9c084399352 Anju T 2017-02-08 26 (optprobe_template_ret - optprobe_template_entry)
51c9c084399352 Anju T 2017-02-08 27 #define TMPL_OP_IDX \
51c9c084399352 Anju T 2017-02-08 28 (optprobe_template_op_address - optprobe_template_entry)
51c9c084399352 Anju T 2017-02-08 29 #define TMPL_INSN_IDX \
51c9c084399352 Anju T 2017-02-08 30 (optprobe_template_insn - optprobe_template_entry)
51c9c084399352 Anju T 2017-02-08 31 #define TMPL_END_IDX \
51c9c084399352 Anju T 2017-02-08 32 (optprobe_template_end - optprobe_template_entry)
51c9c084399352 Anju T 2017-02-08 33
51c9c084399352 Anju T 2017-02-08 @34 DEFINE_INSN_CACHE_OPS(ppc_optinsn);
51c9c084399352 Anju T 2017-02-08 35

:::::: The code at line 34 was first introduced by commit
:::::: 51c9c0843993528bffc920c54c2121d9e6f8b090 powerpc/kprobes: Implement Optprobes

:::::: TO: Anju T <anju@linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

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