CHECK: Comparison to NULL could be written "!buf->tail[0].iov_base"
#74: FILE: net/sunrpc/auth_gss/gss_krb5_crypto.c:992:
+	if (buf->tail[0].iov_base == NULL) {

WARNING: line length of 82 exceeds 80 columns
#80: FILE: net/sunrpc/auth_gss/gss_krb5_crypto.c:998:
+	/* Append a copy of the plaintext GSS token header (RFC 4121 Sec 4.2.4) */

total: 0 errors, 1 warnings, 1 checks, 159 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 e5d4b110cf68 ("SUNRPC: Switch wrap token encryption to crypto/krb5") 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, 1 warnings, 1 checks, 159 lines checked