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Message-ID: <202410251600.4VOzw93J-lkp@intel.com>
Date: Fri, 25 Oct 2024 17:14:26 +0800
From: kernel test robot <lkp@...el.com>
To: "D. Wythe" <alibuda@...ux.alibaba.com>, kgraul@...ux.ibm.com,
wenjia@...ux.ibm.com, jaka@...ux.ibm.com, ast@...nel.org,
daniel@...earbox.net, andrii@...nel.org, martin.lau@...ux.dev,
pabeni@...hat.com, song@...nel.org, sdf@...gle.com,
haoluo@...gle.com, yhs@...com, edumazet@...gle.com,
john.fastabend@...il.com, kpsingh@...nel.org, jolsa@...nel.org,
guwen@...ux.alibaba.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev, kuba@...nel.org,
davem@...emloft.net, netdev@...r.kernel.org,
linux-s390@...r.kernel.org, linux-rdma@...r.kernel.org,
bpf@...r.kernel.org, dtcccc@...ux.alibaba.com
Subject: Re: [PATCH bpf-next 2/4] bpf: allow to access bpf_prog during
bpf_struct_access
Hi Wythe,
kernel test robot noticed the following build errors:
[auto build test ERROR on bpf-next/master]
url: https://github.com/intel-lab-lkp/linux/commits/D-Wythe/bpf-export-necessary-sympols-for-modules/20241024-104903
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link: https://lore.kernel.org/r/1729737768-124596-3-git-send-email-alibuda%40linux.alibaba.com
patch subject: [PATCH bpf-next 2/4] bpf: allow to access bpf_prog during bpf_struct_access
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20241025/202410251600.4VOzw93J-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 5886454669c3c9026f7f27eab13509dd0241f2d6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241025/202410251600.4VOzw93J-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410251600.4VOzw93J-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/hid/bpf/hid_bpf_struct_ops.c:10:
In file included from include/linux/bpf_verifier.h:7:
In file included from include/linux/bpf.h:20:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:181:
In file included from arch/s390/include/asm/mmu_context.h:11:
In file included from arch/s390/include/asm/pgalloc.h:18:
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/hid/bpf/hid_bpf_struct_ops.c:10:
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:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
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 drivers/hid/bpf/hid_bpf_struct_ops.c:10:
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 drivers/hid/bpf/hid_bpf_struct_ops.c:10:
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);
| ~~~~~~~~~~ ^
>> drivers/hid/bpf/hid_bpf_struct_ops.c:146:23: error: incompatible function pointer types initializing 'int (*)(struct bpf_verifier_log *, const struct bpf_reg_state *, const struct bpf_prog *, int, int)' with an expression of type 'int (struct bpf_verifier_log *, const struct bpf_reg_state *, int, int)' [-Wincompatible-function-pointer-types]
146 | .btf_struct_access = hid_bpf_ops_btf_struct_access,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
16 warnings and 1 error generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for MODVERSIONS
Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y]
Selected by [y]:
- RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=y] || GCC_PLUGINS [=n]) && MODULES [=y]
vim +146 drivers/hid/bpf/hid_bpf_struct_ops.c
ebc0d8093e8c97 Benjamin Tissoires 2024-06-08 142
ebc0d8093e8c97 Benjamin Tissoires 2024-06-08 143 static const struct bpf_verifier_ops hid_bpf_verifier_ops = {
bd0747543b3d97 Benjamin Tissoires 2024-06-08 144 .get_func_proto = bpf_base_func_proto,
ebc0d8093e8c97 Benjamin Tissoires 2024-06-08 145 .is_valid_access = hid_bpf_ops_is_valid_access,
ebc0d8093e8c97 Benjamin Tissoires 2024-06-08 @146 .btf_struct_access = hid_bpf_ops_btf_struct_access,
ebc0d8093e8c97 Benjamin Tissoires 2024-06-08 147 };
ebc0d8093e8c97 Benjamin Tissoires 2024-06-08 148
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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