CHECK: DEFINE_MUTEX definition without comment
#81: FILE: drivers/net/ethernet/airoha/airoha_ppe.c:18:
+DEFINE_MUTEX(flow_offload_mutex);

total: 0 errors, 0 warnings, 1 checks, 48 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 9f4a77e079ae ("net: airoha: Grab flow_offload_mutex running airoha_register_gdm_devices()") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 48 lines checked