WARNING: line length of 101 exceeds 80 columns
#94: FILE: kernel/bpf/trampoline.c:1407:
+#if defined(CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS) && defined(CONFIG_HAVE_SINGLE_FTRACE_DIRECT_OPS)

WARNING: line length of 86 exceeds 80 columns
#109: FILE: kernel/bpf/trampoline.c:1422:
+static int register_fentry_multi(struct bpf_trampoline *tr, void *new_addr, void *ptr)

WARNING: line length of 84 exceeds 80 columns
#115: FILE: kernel/bpf/trampoline.c:1428:
+					    (unsigned long) new_addr) ? 0 : -ENOMEM;

CHECK: No space is necessary after a cast
#115: FILE: kernel/bpf/trampoline.c:1428:
+					    (unsigned long) new_addr) ? 0 : -ENOMEM;

WARNING: line length of 104 exceeds 80 columns
#118: FILE: kernel/bpf/trampoline.c:1431:
+static int unregister_fentry_multi(struct bpf_trampoline *tr, u32 orig_flags, void *old_addr, void *ptr)

WARNING: line length of 84 exceeds 80 columns
#124: FILE: kernel/bpf/trampoline.c:1437:
+					    (unsigned long) old_addr) ? 0 : -ENOMEM;

CHECK: No space is necessary after a cast
#124: FILE: kernel/bpf/trampoline.c:1437:
+					    (unsigned long) old_addr) ? 0 : -ENOMEM;

WARNING: line length of 105 exceeds 80 columns
#127: FILE: kernel/bpf/trampoline.c:1440:
+static int modify_fentry_multi(struct bpf_trampoline *tr, u32 orig_flags, void *old_addr, void *new_addr,

WARNING: line length of 84 exceeds 80 columns
#134: FILE: kernel/bpf/trampoline.c:1447:
+					    (unsigned long) new_addr) ? 0 : -ENOMEM;

CHECK: No space is necessary after a cast
#134: FILE: kernel/bpf/trampoline.c:1447:
+					    (unsigned long) new_addr) ? 0 : -ENOMEM;

WARNING: line length of 83 exceeds 80 columns
#165: FILE: kernel/bpf/trampoline.c:1478:
+		err = bpf_check_attach_target(NULL, prog, NULL, ids[i], &tgt_info);

WARNING: line length of 86 exceeds 80 columns
#169: FILE: kernel/bpf/trampoline.c:1482:
+		key = bpf_trampoline_compute_key(NULL, prog->aux->attach_btf, ids[i]);

WARNING: line length of 103 exceeds 80 columns
#185: FILE: kernel/bpf/trampoline.c:1498:
+		err = __bpf_trampoline_link_prog(&mnode->node, tr, NULL, &trampoline_multi_ops, &data);

WARNING: line length of 86 exceeds 80 columns
#201: FILE: kernel/bpf/trampoline.c:1514:
+			WARN_ON_ONCE(update_ftrace_direct_del(&direct_ops, data.reg));

WARNING: line length of 81 exceeds 80 columns
#218: FILE: kernel/bpf/trampoline.c:1531:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, tr, NULL,

CHECK: Alignment should match open parenthesis
#219: FILE: kernel/bpf/trampoline.c:1532:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, tr, NULL,
+			     &trampoline_multi_ops, &data));

WARNING: line length of 91 exceeds 80 columns
#233: FILE: kernel/bpf/trampoline.c:1546:
+int bpf_trampoline_multi_detach(struct bpf_prog *prog, struct bpf_tracing_multi_link *link)

WARNING: line length of 81 exceeds 80 columns
#255: FILE: kernel/bpf/trampoline.c:1568:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, tr, NULL,

WARNING: line length of 89 exceeds 80 columns
#256: FILE: kernel/bpf/trampoline.c:1569:
+							  &trampoline_multi_ops, &data));

WARNING: line length of 87 exceeds 80 columns
#262: FILE: kernel/bpf/trampoline.c:1575:
+		WARN_ON_ONCE(update_ftrace_direct_mod(&direct_ops, data.modify, true));

WARNING: line length of 93 exceeds 80 columns
#274: FILE: kernel/bpf/trampoline.c:1587:
+#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS) && CONFIG_HAVE_SINGLE_FTRACE_DIRECT_OPS */

total: 0 errors, 17 warnings, 4 checks, 229 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 ec7733265096 ("bpf: Add bpf_trampoline_multi_attach/detach functions") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 17 warnings, 4 checks, 229 lines checked