WARNING: line length of 92 exceeds 80 columns
#90: FILE: tools/testing/selftests/net/ptp.sh:50:
+		echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > "$NSIM_DEV_SYS_UNLINK" 2>/dev/null

WARNING: line length of 84 exceeds 80 columns
#112: FILE: tools/testing/selftests/net/ptp.sh:72:
+NSIM_DEV_1_IFIDX=$(ip netns exec nssv cat "/sys/class/net/$NSIM_DEV_1_NAME/ifindex")

WARNING: line length of 84 exceeds 80 columns
#116: FILE: tools/testing/selftests/net/ptp.sh:76:
+NSIM_DEV_2_IFIDX=$(ip netns exec nscl cat "/sys/class/net/$NSIM_DEV_2_NAME/ifindex")

WARNING: line length of 83 exceeds 80 columns
#125: FILE: tools/testing/selftests/net/ptp.sh:85:
+# then parse follower output to verify they synchronized (servo state s2 = locked).

WARNING: line length of 83 exceeds 80 columns
#144: FILE: tools/testing/selftests/net/ptp.sh:104:
+echo "ptp4l follower did not reach locked state (s2) within ${PTP4L_SYNC_TIMEOUT}s"

total: 0 errors, 5 warnings, 0 checks, 112 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 d179beb9beb7 ("selftests:net: Implement ptp4l sync test using netdevsim") 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, 5 warnings, 0 checks, 112 lines checked