WARNING: line length of 92 exceeds 80 columns
#78: FILE: include/uapi/linux/bpf.h:1593:
+		__u32		signature_maps_size;	/* size of maps used in signature */

WARNING: line length of 91 exceeds 80 columns
#158: FILE: kernel/bpf/syscall.c:2767:
+static int bpf_check_signature(struct bpf_prog *prog, union bpf_attr *attr, bpfptr_t uattr,

WARNING: line length of 93 exceeds 80 columns
#187: FILE: kernel/bpf/syscall.c:2796:
+		sha256((u8 *)prog->insnsi, prog->len * sizeof(struct bpf_insn), (u8 *)&hash);

WARNING: line length of 97 exceeds 80 columns
#188: FILE: kernel/bpf/syscall.c:2797:
+		err = verify_pkcs7_signature(hash, sizeof(hash), signature, attr->signature_size,

CHECK: Alignment should match open parenthesis
#189: FILE: kernel/bpf/syscall.c:2798:
+		err = verify_pkcs7_signature(hash, sizeof(hash), signature, attr->signature_size,
+				     VERIFY_USE_SECONDARY_KEYRING,

WARNING: line length of 100 exceeds 80 columns
#202: FILE: kernel/bpf/syscall.c:2811:
+		err = copy_from_bpfptr_offset(&map_fd, make_bpfptr(attr->fd_array, uattr.is_kernel),

WARNING: line length of 99 exceeds 80 columns
#225: FILE: kernel/bpf/syscall.c:2834:
+						      make_bpfptr(attr->fd_array, uattr.is_kernel),

WARNING: line length of 84 exceeds 80 columns
#226: FILE: kernel/bpf/syscall.c:2835:
+						      used_maps[n] * sizeof(map_fd),

CHECK: spaces preferred around that '+' (ctx:VxV)
#237: FILE: kernel/bpf/syscall.c:2846:
+			if (__map_get_hash(map, (u8 *)buffer+4)) {
 			                                    ^

WARNING: line length of 95 exceeds 80 columns
#245: FILE: kernel/bpf/syscall.c:2854:
+		sha256((u8 *)prog->insnsi, prog->len * sizeof(struct bpf_insn), (u8 *)&buffer);

CHECK: spaces preferred around that '+' (ctx:VxV)
#246: FILE: kernel/bpf/syscall.c:2855:
+		memcpy(buffer+4, hash, sizeof(hash));
 		             ^

WARNING: line length of 97 exceeds 80 columns
#248: FILE: kernel/bpf/syscall.c:2857:
+		err = verify_pkcs7_signature(hash, sizeof(hash), signature, attr->signature_size,

CHECK: Alignment should match open parenthesis
#249: FILE: kernel/bpf/syscall.c:2858:
+		err = verify_pkcs7_signature(hash, sizeof(hash), signature, attr->signature_size,
+				     VERIFY_USE_SECONDARY_KEYRING,

WARNING: line length of 92 exceeds 80 columns
#292: FILE: tools/include/uapi/linux/bpf.h:1593:
+		__u32		signature_maps_size;	/* size of maps used in signature */

total: 0 errors, 10 warnings, 4 checks, 224 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 43e10be6f8c0 ("bpf: Add bpf_check_signature") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 10 warnings, 4 checks, 224 lines checked