WARNING: externs should be avoided in .c files
#102: FILE: tools/testing/selftests/bpf/bench.c:283:
+extern struct argp bench_trigger_batch_argp;

WARNING: externs should be avoided in .c files
#119: FILE: tools/testing/selftests/bpf/bench.c:514:
+extern const struct bench bench_trig_kernel_count;

WARNING: externs should be avoided in .c files
#120: FILE: tools/testing/selftests/bpf/bench.c:515:
+extern const struct bench bench_trig_kprobe_batch;

WARNING: externs should be avoided in .c files
#121: FILE: tools/testing/selftests/bpf/bench.c:516:
+extern const struct bench bench_trig_kretprobe_batch;

WARNING: externs should be avoided in .c files
#122: FILE: tools/testing/selftests/bpf/bench.c:517:
+extern const struct bench bench_trig_kprobe_multi_batch;

WARNING: externs should be avoided in .c files
#123: FILE: tools/testing/selftests/bpf/bench.c:518:
+extern const struct bench bench_trig_kretprobe_multi_batch;

WARNING: externs should be avoided in .c files
#124: FILE: tools/testing/selftests/bpf/bench.c:519:
+extern const struct bench bench_trig_fentry_batch;

WARNING: externs should be avoided in .c files
#125: FILE: tools/testing/selftests/bpf/bench.c:520:
+extern const struct bench bench_trig_fexit_batch;

WARNING: line length of 107 exceeds 80 columns
#202: FILE: tools/testing/selftests/bpf/benchs/bench_trigger.c:37:
+			fprintf(stderr, "invalid --trig-batch-iters value (should be between %d and %d)\n",

WARNING: line length of 87 exceeds 80 columns
#237: FILE: tools/testing/selftests/bpf/benchs/bench_trigger.c:125:
+	int fd = ctx.driver_prog_fd ?: bpf_program__fd(ctx.skel->progs.trigger_driver);

WARNING: line length of 99 exceeds 80 columns
#381: FILE: tools/testing/selftests/bpf/benchs/run_bench_trigger.sh:23:
+	summary=$(sudo ./bench -w2 -d5 -a -p$p trig-$t | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-)

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#400: FILE: tools/testing/selftests/bpf/progs/trigger_bench.c:106:
+const volatile int batch_iters = 0;

WARNING: line length of 81 exceeds 80 columns
#419: FILE: tools/testing/selftests/bpf/progs/trigger_bench.c:125:
+		(void)bpf_get_numa_node_id(); /* attach point for benchmarking */

total: 0 errors, 13 warnings, 0 checks, 340 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 5ae04bf1e706 ("selftests/bpf: add batched, mostly in-kernel BPF triggering benchmarks") 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, 13 warnings, 0 checks, 340 lines checked