* arch/riscv/net/bpf_jit_comp64.c:691:23: error: implicit declaration of function 'patch_text'; did you mean 'path_get'?
@ 2023-02-27 2:17 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-02-27 2:17 UTC (permalink / raw)
To: Pu Lehui; +Cc: oe-kbuild-all, linux-kernel, Daniel Borkmann
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f3a2439f20d918930cc4ae8f76fe1c1afd26958f
commit: 596f2e6f9cf41436a5512a3f278c86da5c5598fb riscv, bpf: Add bpf_arch_text_poke support for RV64
date: 9 days ago
config: riscv-buildonly-randconfig-r002-20230227 (https://download.01.org/0day-ci/archive/20230227/202302271000.Aj4nMXbZ-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.1.0
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=596f2e6f9cf41436a5512a3f278c86da5c5598fb
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 596f2e6f9cf41436a5512a3f278c86da5c5598fb
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302271000.Aj4nMXbZ-lkp@intel.com/
All errors (new ones prefixed by >>):
arch/riscv/net/bpf_jit_comp64.c: In function 'bpf_arch_text_poke':
>> arch/riscv/net/bpf_jit_comp64.c:691:23: error: implicit declaration of function 'patch_text'; did you mean 'path_get'? [-Werror=implicit-function-declaration]
691 | ret = patch_text(ip, new_insns, ninsns);
| ^~~~~~~~~~
| path_get
cc1: some warnings being treated as errors
vim +691 arch/riscv/net/bpf_jit_comp64.c
662
663 int bpf_arch_text_poke(void *ip, enum bpf_text_poke_type poke_type,
664 void *old_addr, void *new_addr)
665 {
666 u32 old_insns[4], new_insns[4];
667 bool is_call = poke_type == BPF_MOD_CALL;
668 int (*gen_insns)(void *target, void *ip, u32 *insns);
669 int ninsns = is_call ? 4 : 2;
670 int ret;
671
672 if (!is_bpf_text_address((unsigned long)ip))
673 return -ENOTSUPP;
674
675 gen_insns = is_call ? gen_call_or_nops : gen_jump_or_nops;
676
677 ret = gen_insns(old_addr, ip, old_insns);
678 if (ret)
679 return ret;
680
681 if (memcmp(ip, old_insns, ninsns * 4))
682 return -EFAULT;
683
684 ret = gen_insns(new_addr, ip, new_insns);
685 if (ret)
686 return ret;
687
688 cpus_read_lock();
689 mutex_lock(&text_mutex);
690 if (memcmp(ip, new_insns, ninsns * 4))
> 691 ret = patch_text(ip, new_insns, ninsns);
692 mutex_unlock(&text_mutex);
693 cpus_read_unlock();
694
695 return ret;
696 }
697
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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