WARNING: line length of 101 exceeds 80 columns
#116: FILE: kernel/bpf/trampoline.c:1457:
+#if defined(CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS) && defined(CONFIG_HAVE_SINGLE_FTRACE_DIRECT_OPS)

WARNING: line length of 86 exceeds 80 columns
#131: FILE: kernel/bpf/trampoline.c:1472:
+static int register_fentry_multi(struct bpf_trampoline *tr, void *new_addr, void *ptr)

CHECK: No space is necessary after a cast
#133: FILE: kernel/bpf/trampoline.c:1474:
+	unsigned long addr = (unsigned long) new_addr;

WARNING: line length of 93 exceeds 80 columns
#142: FILE: kernel/bpf/trampoline.c:1483:
+static int unregister_fentry_multi(struct bpf_trampoline *tr, u32 orig_flags, void *old_addr,

CHECK: No space is necessary after a cast
#145: FILE: kernel/bpf/trampoline.c:1486:
+	unsigned long addr = (unsigned long) old_addr;

WARNING: line length of 81 exceeds 80 columns
#151: FILE: kernel/bpf/trampoline.c:1492:
+	return add_ftrace_hash_entry_direct(data->unreg, ip, addr) ? 0 : -ENOMEM;

WARNING: line length of 89 exceeds 80 columns
#154: FILE: kernel/bpf/trampoline.c:1495:
+static int modify_fentry_multi(struct bpf_trampoline *tr, u32 orig_flags, void *old_addr,

WARNING: line length of 81 exceeds 80 columns
#155: FILE: kernel/bpf/trampoline.c:1496:
+			       void *new_addr, bool lock_direct_mutex, void *ptr)

CHECK: No space is necessary after a cast
#157: FILE: kernel/bpf/trampoline.c:1498:
+	unsigned long addr = (unsigned long) new_addr;

WARNING: line length of 82 exceeds 80 columns
#163: FILE: kernel/bpf/trampoline.c:1504:
+	return add_ftrace_hash_entry_direct(data->modify, ip, addr) ? 0 : -ENOMEM;

WARNING: line length of 83 exceeds 80 columns
#194: FILE: kernel/bpf/trampoline.c:1535:
+		err = bpf_check_attach_target(NULL, prog, NULL, ids[i], &tgt_info);

WARNING: line length of 86 exceeds 80 columns
#198: FILE: kernel/bpf/trampoline.c:1539:
+		key = bpf_trampoline_compute_key(NULL, prog->aux->attach_btf, ids[i]);

WARNING: line length of 87 exceeds 80 columns
#214: FILE: kernel/bpf/trampoline.c:1555:
+		err = __bpf_trampoline_link_prog(&mnode->node, mnode->trampoline, NULL,

WARNING: line length of 86 exceeds 80 columns
#229: FILE: kernel/bpf/trampoline.c:1570:
+			WARN_ON_ONCE(update_ftrace_direct_del(&direct_ops, data.reg));

WARNING: line length of 90 exceeds 80 columns
#242: FILE: kernel/bpf/trampoline.c:1583:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, mnode->trampoline,

CHECK: Alignment should match open parenthesis
#243: FILE: kernel/bpf/trampoline.c:1584:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, mnode->trampoline,
+					NULL, &trampoline_multi_ops, &data));

WARNING: line length of 91 exceeds 80 columns
#255: FILE: kernel/bpf/trampoline.c:1596:
+int bpf_trampoline_multi_detach(struct bpf_prog *prog, struct bpf_tracing_multi_link *link)

WARNING: line length of 90 exceeds 80 columns
#275: FILE: kernel/bpf/trampoline.c:1616:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, mnode->trampoline,

CHECK: Alignment should match open parenthesis
#276: FILE: kernel/bpf/trampoline.c:1617:
+		WARN_ON_ONCE(__bpf_trampoline_unlink_prog(&mnode->node, mnode->trampoline,
+					NULL, &trampoline_multi_ops, &data));

WARNING: line length of 87 exceeds 80 columns
#282: FILE: kernel/bpf/trampoline.c:1623:
+		WARN_ON_ONCE(update_ftrace_direct_mod(&direct_ops, data.modify, true));

WARNING: line length of 93 exceeds 80 columns
#293: FILE: kernel/bpf/trampoline.c:1634:
+#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS) && CONFIG_HAVE_SINGLE_FTRACE_DIRECT_OPS */

total: 0 errors, 16 warnings, 5 checks, 236 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 ff5c1c2fbd84 ("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, 16 warnings, 5 checks, 236 lines checked