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X-CSE-ConnectionGUID: O1g/OYClQgihaQMiiE+5iA== X-CSE-MsgGUID: uqo5jQ44QyC7dMngKZTZgQ== X-IronPort-AV: E=McAfee;i="6700,10204,11141"; a="12650490" X-IronPort-AV: E=Sophos;i="6.09,228,1716274800"; d="scan'208";a="12650490" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jul 2024 09:09:48 -0700 X-CSE-ConnectionGUID: At1QFl1FR2elPEcK3VkV9A== X-CSE-MsgGUID: /QJ0pqd9RzSwuOXE2z7fIg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,228,1716274800"; d="scan'208";a="56488450" Received: from lkp-server01.sh.intel.com (HELO 68891e0c336b) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 22 Jul 2024 09:09:47 -0700 Received: from kbuild by 68891e0c336b with local (Exim 4.96) (envelope-from ) id 1sVvbc-000lEO-2d; Mon, 22 Jul 2024 16:09:44 +0000 Date: Tue, 23 Jul 2024 00:09:04 +0800 From: kernel test robot To: Jiri Olsa Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [jolsa-perf:bp 3/4] kernel/trace/bpf_trace.c:3566:9: error: call to undeclared function 'hw_breakpoint_modify'; ISO C99 and later do not support implicit function declarations Message-ID: <202407230034.oKNTq3kB-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bp head: b45f92fe92ab4e5bf3568b81df7d7a4c7a52acbe commit: 4e7d975bf8e514543825578dd810d04770bee181 [3/4] add bpf_bp_modify_address kfunc config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240723/202407230034.oKNTq3kB-lkp@intel.com/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project ad154281230d83ee551e12d5be48bb956ef47ed3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240723/202407230034.oKNTq3kB-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202407230034.oKNTq3kB-lkp@intel.com/ All errors (new ones prefixed by >>): 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from kernel/trace/bpf_trace.c:9: In file included from include/linux/bpf_verifier.h:9: In file included from include/linux/filter.h:12: In file included from include/linux/skbuff.h:28: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:93: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from kernel/trace/bpf_trace.c:9: In file included from include/linux/bpf_verifier.h:9: In file included from include/linux/filter.h:12: In file included from include/linux/skbuff.h:28: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:93: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 693 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 701 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 709 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 718 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 727 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 736 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ kernel/trace/bpf_trace.c:357:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 357 | .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:403:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 403 | .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:458:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 458 | .arg1_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:460:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 460 | .arg3_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ kernel/trace/bpf_trace.c:502:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 502 | .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:504:35: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 504 | .arg4_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ kernel/trace/bpf_trace.c:519:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 519 | .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:543:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 543 | .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:707:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 707 | .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:1033:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1033 | .arg3_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:1728:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1728 | .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:1953:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 1953 | .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ kernel/trace/bpf_trace.c:2008:30: warning: bitwise operation between different enumeration types ('enum bpf_arg_type' and 'enum bpf_type_flag') [-Wenum-enum-conversion] 2008 | .arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY, | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~ >> kernel/trace/bpf_trace.c:3566:9: error: call to undeclared function 'hw_breakpoint_modify'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 3566 | return hw_breakpoint_modify(event, addr); | ^ 30 warnings and 1 error generated. vim +/hw_breakpoint_modify +3566 kernel/trace/bpf_trace.c 3540 3541 __bpf_kfunc int bpf_bp_modify_addr(const struct bpf_map *map, u64 flags, unsigned long addr) 3542 { 3543 struct bpf_array *array = container_of(map, struct bpf_array, map); 3544 unsigned int cpu = smp_processor_id(); 3545 u64 index = flags & BPF_F_INDEX_MASK; 3546 struct bpf_event_entry *ee; 3547 struct perf_event *event; 3548 3549 if (index == BPF_F_CURRENT_CPU) 3550 index = cpu; 3551 3552 if (unlikely(index >= array->map.max_entries)) 3553 return -E2BIG; 3554 3555 ee = READ_ONCE(array->ptrs[index]); 3556 if (!ee) 3557 return -ENOENT; 3558 3559 event = ee->event; 3560 if (unlikely(event->attr.type != PERF_TYPE_BREAKPOINT)) 3561 return -EINVAL; 3562 3563 if (unlikely(event->oncpu != cpu)) 3564 return -EOPNOTSUPP; 3565 > 3566 return hw_breakpoint_modify(event, addr); 3567 } 3568 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki