WARNING: line length of 86 exceeds 80 columns
#129: FILE: tools/testing/selftests/bpf/vmtest.sh:376:
+#between "/mnt/shared" on qemu with *${OUTPUT_DIR}/${MOUNT_DIR}/shared* on local host.

WARNING: line length of 110 exceeds 80 columns
#136: FILE: tools/testing/selftests/bpf/vmtest.sh:383:
+	local flag="-virtfs local,mount_tag=host0,security_model=passthrough,id=host0,path=${host_shared_dir}"

total: 0 errors, 2 warnings, 0 checks, 121 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 5d47e250f626 ("enable virtFS(9p virtio) for sharing directory on VM to optimize debugging") 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, 2 warnings, 0 checks, 121 lines checked