WARNING: line length of 83 exceeds 80 columns
#66: FILE: kernel/bpf/syscall.c:5246:
+		else if (attr->link_create.attach_type == BPF_TRACE_UPROBE_MULTI ||

WARNING: line length of 83 exceeds 80 columns
#67: FILE: kernel/bpf/syscall.c:5247:
+			 attr->link_create.attach_type == BPF_TRACE_UPROBE_SESSION)

WARNING: line length of 84 exceeds 80 columns
#137: FILE: kernel/trace/bpf_trace.c:3280:
+	 * There's chance we could get called with NULL data if we registered uprobe

WARNING: line length of 81 exceeds 80 columns
#164: FILE: kernel/trace/bpf_trace.c:3402:
+		if (flags & BPF_F_UPROBE_MULTI_RETURN || is_uprobe_session(prog))

WARNING: line length of 88 exceeds 80 columns
#165: FILE: kernel/trace/bpf_trace.c:3403:
+			uprobes[i].consumer.ret_handler = uprobe_multi_link_ret_handler;

total: 0 errors, 5 warnings, 0 checks, 134 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 283756f39e4f ("bpf: Add support for uprobe multi session attach") 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, 5 warnings, 0 checks, 134 lines checked