[ +Bjorn ]
On 10/28/21 9:45 PM, kernel test robot wrote:
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 503f375baa99edff894eb1a534d2ac0b4f799573
commit: 252c765bd764a246a8bd516fabf6d6123df4a24f [11855/12471] riscv, bpf: Add BPF exception tables
config: riscv-randconfig-r042-20211028 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5db7568a6a1fcb408eb8988abdaff2a225a8eb72)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=252c765bd764a246a8bd516fabf6d6123df4a24f
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 252c765bd764a246a8bd516fabf6d6123df4a24f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All warnings (new ones prefixed by >>):
arch/riscv/net/bpf_jit_comp64.c:462:5: warning: no previous prototype for function 'rv_bpf_fixup_exception' [-Wmissing-prototypes]
int rv_bpf_fixup_exception(const struct exception_table_entry *ex,
^
arch/riscv/net/bpf_jit_comp64.c:462:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int rv_bpf_fixup_exception(const struct exception_table_entry *ex,
^
static
1 warning generated.
Tong, Bjorn, ptal
vim +/rv_bpf_fixup_exception +462 arch/riscv/net/bpf_jit_comp64.c
461
> 462 int rv_bpf_fixup_exception(const struct exception_table_entry *ex,
463 struct pt_regs *regs)
464 {
465 off_t offset = FIELD_GET(BPF_FIXUP_OFFSET_MASK, ex->fixup);
466 int regs_offset = FIELD_GET(BPF_FIXUP_REG_MASK, ex->fixup);
467
468 *(unsigned long *)((void *)regs + pt_regmap[regs_offset]) = 0;
469 regs->epc = (unsigned long)&ex->fixup - offset;
470
471 return 1;
472 }
473
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
