==========
checkpatch - FAILED

ERROR: do not initialise statics to 0
#26: FILE: tools/testing/selftests/bpf/test_progs.h:381:
+	static int duration = 0;					\

total: 1 errors, 0 warnings, 0 checks, 14 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 5f9c2d2a3f89 ("selftests/bpf: Add ASSERT_OK_FD macro") 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.