WARNING: line length of 81 exceeds 80 columns
#32: FILE: tools/testing/selftests/net/lib.sh:233:
+    echo "$id 1" | ip netns exec $ns tee /sys/bus/netdevsim/new_device >/dev/null

WARNING: line length of 81 exceeds 80 columns
#33: FILE: tools/testing/selftests/net/lib.sh:234:
+    local dev=$(ip netns exec $ns ls /sys/bus/netdevsim/devices/netdevsim$id/net)

total: 0 errors, 2 warnings, 0 checks, 62 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 5b385d15f4bd ("selftests: net: use netdevsim in netns test") 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, 62 lines checked