CHECK: Prefer using the BIT macro
#37: FILE: tools/testing/selftests/bpf/bpf_experimental.h:613:
+#define SOFTIRQ_OFFSET	(1UL << SOFTIRQ_SHIFT)

WARNING: line length of 84 exceeds 80 columns
#57: FILE: tools/testing/selftests/bpf/bpf_experimental.h:664:
+ *	Report whether it is in hard IRQ context. Only works on the following archs:

WARNING: line length of 83 exceeds 80 columns
#67: FILE: tools/testing/selftests/bpf/bpf_experimental.h:674:
+ *	Report whether it is in softirq context. Only works on the following archs:

CHECK: No space is necessary after a cast
#80: FILE: tools/testing/selftests/bpf/bpf_experimental.h:687:
+	tsk = (void *) bpf_get_current_task_btf();

CHECK: No space is necessary after a cast
#98: FILE: tools/testing/selftests/bpf/bpf_experimental.h:705:
+	tsk = (void *) bpf_get_current_task_btf();

total: 0 errors, 2 warnings, 3 checks, 68 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 8bc4a35c0fd0 ("selftests/bpf: Introduce execution context detection helpers") 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, 2 warnings, 3 checks, 68 lines checked