WARNING: line length of 87 exceeds 80 columns
#149: FILE: kernel/trace/bpf_trace.c:2422:
+		if (ucookies && put_user(kmulti_link->kprobes[i].cookie, ucookies + i))

WARNING: line length of 95 exceeds 80 columns
#152: FILE: kernel/trace/bpf_trace.c:2425:
+		if (put_user(kallsyms_show ? (uintptr_t)kmulti_link->kprobes[i].rp.kp.addr : 0,

CHECK: Alignment should match open parenthesis
#153: FILE: kernel/trace/bpf_trace.c:2426:
+		if (put_user(kallsyms_show ? (uintptr_t)kmulti_link->kprobes[i].rp.kp.addr : 0,
+					uaddrs + i))

WARNING: line length of 81 exceeds 80 columns
#254: FILE: kernel/trace/bpf_trace.c:2951:
+	run_ctx = container_of(current->bpf_ctx, struct bpf_kprobe_multi_run_ctx,

CHECK: Alignment should match open parenthesis
#255: FILE: kernel/trace/bpf_trace.c:2952:
+	run_ctx = container_of(current->bpf_ctx, struct bpf_kprobe_multi_run_ctx,
+				   session_ctx.run_ctx);

CHECK: Alignment should match open parenthesis
#261: FILE: kernel/trace/bpf_trace.c:2958:
+kprobe_multi_link_prog_run(struct bpf_kprobe *kprobe, unsigned long entry_ip,
+			struct pt_regs *regs, bool is_return, void *data)

WARNING: line length of 86 exceeds 80 columns
#307: FILE: kernel/trace/bpf_trace.c:3004:
+	err = kprobe_multi_link_prog_run(kprobe, get_entry_ip((uintptr_t)rp->kp.addr),

WARNING: line length of 96 exceeds 80 columns
#308: FILE: kernel/trace/bpf_trace.c:3005:
+							  		 regs, false, ri->data);

ERROR: code indent should use tabs where possible
#308: FILE: kernel/trace/bpf_trace.c:3005:
+^I^I^I^I^I^I^I  ^I^I regs, false, ri->data);$

WARNING: please, no space before tabs
#308: FILE: kernel/trace/bpf_trace.c:3005:
+^I^I^I^I^I^I^I  ^I^I regs, false, ri->data);$

CHECK: Alignment should match open parenthesis
#308: FILE: kernel/trace/bpf_trace.c:3005:
+	err = kprobe_multi_link_prog_run(kprobe, get_entry_ip((uintptr_t)rp->kp.addr),
+							  		 regs, false, ri->data);

WARNING: line length of 83 exceeds 80 columns
#313: FILE: kernel/trace/bpf_trace.c:3010:
+kprobe_multi_link_exit_handler(struct kretprobe_instance *ri, struct pt_regs *regs)

WARNING: line length of 81 exceeds 80 columns
#323: FILE: kernel/trace/bpf_trace.c:3020:
+							   regs, true, ri->data);

CHECK: Alignment should match open parenthesis
#323: FILE: kernel/trace/bpf_trace.c:3020:
+	kprobe_multi_link_prog_run(kprobe, get_entry_ip((uintptr_t)rp->kp.addr),
+							   regs, true, ri->data);

WARNING: line length of 83 exceeds 80 columns
#327: FILE: kernel/trace/bpf_trace.c:3024:
+int bpf_kprobe_multi_link_attach(const union bpf_attr *attr, struct bpf_prog *prog)

WARNING: line length of 99 exceeds 80 columns
#391: FILE: kernel/trace/bpf_trace.c:3088:
+			err = strncpy_from_user(buf, (const char __user *) usymbol, KSYM_NAME_LEN);

CHECK: No space is necessary after a cast
#391: FILE: kernel/trace/bpf_trace.c:3088:
+			err = strncpy_from_user(buf, (const char __user *) usymbol, KSYM_NAME_LEN);

WARNING: line length of 82 exceeds 80 columns
#401: FILE: kernel/trace/bpf_trace.c:3098:
+		if (prog->kprobe_override && !within_error_injection_list(addr)) {

WARNING: line length of 83 exceeds 80 columns
#415: FILE: kernel/trace/bpf_trace.c:3112:
+		if ((flags & BPF_F_KPROBE_MULTI_RETURN) || is_kprobe_session(prog))

WARNING: line length of 88 exceeds 80 columns
#422: FILE: kernel/trace/bpf_trace.c:3119:
+		      &bpf_kprobe_multi_link_lops, prog, attr->link_create.attach_type);

total: 1 errors, 13 warnings, 6 checks, 422 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit 3d68cfedae19 ("bpf: Implement kretprobe fallback for kprobe multi link") 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.