WARNING: Missing a blank line after declarations
#100: FILE: tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c:295:
+	__u8 *buf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);

CHECK: multiple assignments should be avoided
#149: FILE: tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c:344:
+	topts.data_in = topts.data_out = buf;

total: 0 errors, 1 warnings, 1 checks, 161 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 a3925689dbd6 ("bpf: Fix an issue in bpf_prog_test_run_xdp when page size greater than 4K") 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, 1 warnings, 1 checks, 161 lines checked