WARNING: line length of 89 exceeds 80 columns
#25: FILE: drivers/ptp/ptp_chardev.c:226:
+static long ptp_perout_request(struct ptp_clock *ptp, unsigned int cmd, void __user *arg)

WARNING: line length of 89 exceeds 80 columns
#77: FILE: drivers/ptp/ptp_chardev.c:278:
+		return ops->enable(ops, &req, perout->period.sec || perout->period.nsec);

total: 0 errors, 2 warnings, 0 checks, 141 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 4e2db4bf486c ("ptp: Split out PTP_PEROUT_REQUEST ioctl code") 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, 141 lines checked