CHECK: multiple assignments should be avoided
#40: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c:79:
+	child->pid = child->tid = fork();

total: 0 errors, 0 warnings, 1 checks, 162 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 784942a6d7c3 ("selftests/bpf: Add child argument to spawn_child function") 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, 0 warnings, 1 checks, 162 lines checked