WARNING: line length of 81 exceeds 80 columns
#37: FILE: include/uapi/linux/xfrm.h:329:
+	XFRMA_IPTFS_INIT_DELAY,	/* __u32 out: initial packet wait delay (usec) */

WARNING: line length of 81 exceeds 80 columns
#39: FILE: include/uapi/linux/xfrm.h:331:
+	XFRMA_IPTFS_PKT_SIZE,	/* __u32 out: size of outer packet, 0 for PMTU */

WARNING: line length of 97 exceeds 80 columns
#88: FILE: net/xfrm/xfrm_user.c:307:
+			NL_SET_ERR_MSG(extack, "IP-TFS options can only be used in IP-TFS mode");

WARNING: line length of 99 exceeds 80 columns
#99: FILE: net/xfrm/xfrm_user.c:431:
+			NL_SET_ERR_MSG(extack, "IP-TFS drop time should not be set for output SA");

WARNING: line length of 104 exceeds 80 columns
#105: FILE: net/xfrm/xfrm_user.c:437:
+			NL_SET_ERR_MSG(extack, "IP-TFS reorder window should not be set for output SA");

WARNING: line length of 103 exceeds 80 columns
#119: FILE: net/xfrm/xfrm_user.c:481:
+			NL_SET_ERR_MSG(extack, "IP-TFS don't fragment should not be set for input SA");

WARNING: line length of 102 exceeds 80 columns
#125: FILE: net/xfrm/xfrm_user.c:487:
+			NL_SET_ERR_MSG(extack, "IP-TFS initial delay should not be set for input SA");

WARNING: line length of 103 exceeds 80 columns
#131: FILE: net/xfrm/xfrm_user.c:493:
+			NL_SET_ERR_MSG(extack, "IP-TFS max queue size should not be set for input SA");

WARNING: line length of 100 exceeds 80 columns
#137: FILE: net/xfrm/xfrm_user.c:499:
+			NL_SET_ERR_MSG(extack, "IP-TFS packet size should not be set for input SA");

total: 0 errors, 9 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 57127abfab09 ("xfrm: netlink: add config (netlink) options") 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, 9 warnings, 0 checks, 121 lines checked