WARNING: line length of 81 exceeds 80 columns
#23: FILE: arch/x86/net/bpf_jit_comp.c:1303:
+static void emit_store_stack_imm64(u8 **pprog, int reg, int stack_off, u64 imm64)

CHECK: No space is necessary after a cast
#29: FILE: arch/x86/net/bpf_jit_comp.c:1309:
+	emit_mov_imm64(pprog, reg, imm64 >> 32, (u32) imm64);

WARNING: line length of 83 exceeds 80 columns
#57: FILE: arch/x86/net/bpf_jit_comp.c:3366:
+		emit_store_stack_imm64(&prog, BPF_REG_0, -ip_off, (long)func_addr);

WARNING: From:/Signed-off-by: email address mismatch: 'From: Menglong Dong <menglong8.dong@gmail.com>' != 'Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>'

total: 0 errors, 3 warnings, 1 checks, 40 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 fd86fcf091f9 ("bpf,x86: introduce emit_store_stack_imm64() for trampoline") 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, 3 warnings, 1 checks, 40 lines checked