WARNING: line length of 100 exceeds 80 columns
#57: FILE: tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c:144:
+	BPF_BRANCH_SNAPSHOT_F_COPY	= 1,	/* Copy branch snapshot from bpf_branch_snapshot. */

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#72: FILE: tools/testing/selftests/bpf/progs/get_branch_snapshot.c:9:
+volatile const int flags = 0;

WARNING: line length of 81 exceeds 80 columns
#81: FILE: tools/testing/selftests/bpf/progs/get_branch_snapshot.c:29:
+	total_entries = bpf_get_branch_snapshot(entries, sizeof(entries), flags);

total: 0 errors, 3 warnings, 0 checks, 56 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 6acf76a98861 ("selftests/bpf: Add BPF_BRANCH_SNAPSHOT_F_COPY test") 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, 0 checks, 56 lines checked