WARNING: line length of 91 exceeds 80 columns
#154: FILE: tools/testing/selftests/bpf/progs/task_kfunc_failure.c:252:
+int BPF_PROG(task_kfunc_from_vpid_no_null_check, struct task_struct *task, u64 clone_flags)

WARNING: line length of 94 exceeds 80 columns
#191: FILE: tools/testing/selftests/bpf/progs/task_kfunc_success.c:383:
+	/* The current process should be the init process (pid 1) in the new pid namespace. */

WARNING: line length of 90 exceeds 80 columns
#210: FILE: tools/testing/selftests/bpf/progs/task_kfunc_success.c:402:
+	/* There should be only one process (current process) in the new pid namespace. */

total: 0 errors, 3 warnings, 0 checks, 178 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 6e602d50534b ("selftests/bpf: Add tests for bpf_task_from_vpid() kfunc") 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, 3 warnings, 0 checks, 178 lines checked