WARNING: line length of 89 exceeds 80 columns
#145: FILE: arch/arm64/kernel/entry-ftrace.S:345:
+	bl	ftrace_return_to_handler	// addr = ftrace_return_to_hander(fregs);

WARNING: line length of 99 exceeds 80 columns
#326: FILE: arch/riscv/include/asm/ftrace.h:167:
+static __always_inline unsigned long ftrace_regs_get_frame_pointer(const struct ftrace_regs *fregs)

WARNING: line length of 82 exceeds 80 columns
#707: FILE: kernel/trace/fgraph.c:771:
+__ftrace_return_to_handler(struct ftrace_regs *fregs, unsigned long frame_pointer)

total: 0 errors, 3 warnings, 0 checks, 572 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 c5beacebda14 ("function_graph: Replace fgraph_ret_regs with ftrace_regs") 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, 3 warnings, 0 checks, 572 lines checked