WARNING: line length of 94 exceeds 80 columns
#99: FILE: fs/nfsd/netlink.c:26:
+static const struct nla_policy nfsd_version_set_nl_policy[NFSD_A_SERVER_PROTO_VERSION + 1] = {

WARNING: line length of 82 exceeds 80 columns
#100: FILE: fs/nfsd/netlink.c:27:
+	[NFSD_A_SERVER_PROTO_VERSION] = NLA_POLICY_NESTED(nfsd_version_nl_policy),

WARNING: line length of 82 exceeds 80 columns
#134: FILE: fs/nfsd/netlink.h:15:
+extern const struct nla_policy nfsd_version_nl_policy[NFSD_A_VERSION_ENABLED + 1];

CHECK: extern prototypes should be avoided in .h files
#156: FILE: fs/nfsd/netns.h:221:
+extern bool nfsd_support_version(int vers);

WARNING: line length of 86 exceeds 80 columns
#221: FILE: fs/nfsd/nfsctl.c:1767:
+			nfsd_minorversion(nn, minor, enabled ? NFSD_SET : NFSD_CLEAR);

WARNING: line length of 86 exceeds 80 columns
#226: FILE: fs/nfsd/nfsctl.c:1772:
+				nfsd_vers(nn, major, enabled ? NFSD_SET : NFSD_CLEAR);

CHECK: Alignment should match open parenthesis
#284: FILE: fs/nfsd/nfsctl.c:1830:
+			attr = nla_nest_start_noflag(skb,
+					NFSD_A_SERVER_PROTO_VERSION);

total: 0 errors, 5 warnings, 2 checks, 307 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 5efd47a97b7f ("NFSD: add write_version to netlink command") 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, 5 warnings, 2 checks, 307 lines checked