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

ERROR: do not use assignment in if condition
#25: FILE: tools/testing/selftests/bpf/progs/res_spin_lock.c:41:
+	if (!(r = bpf_res_spin_lock(&elem2->lock))) {

ERROR: do not use assignment in if condition
#41: FILE: tools/testing/selftests/bpf/progs/res_spin_lock.c:127:
+	if (!(ret = bpf_res_spin_lock(locks[34]))) {

total: 2 errors, 0 warnings, 0 checks, 30 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 01bfea03d9be ("selftests/bpf: Make res_spin_lock AA test condition stronger") 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.