CHECK: Comparison to NULL could be written "kp"
#161: FILE: include/linux/sockptr.h:186:
+	if ((__optlen).kp != NULL) {				\

CHECK: Comparison to NULL could be written "kp"
#175: FILE: include/linux/sockptr.h:199:
+	if ((__optlen).kp != NULL) {				\

CHECK: Comparison to NULL could be written "optlen.user"
#210: FILE: net/socket.c:2362:
+		} else if (optlen.user != NULL) {

WARNING: line length of 86 exceeds 80 columns
#228: FILE: net/socket.c:2380:
+			if (copy_from_sockptr(&koptlen, optlen, sizeof(koptlen)) == 0)

total: 0 errors, 1 warnings, 3 checks, 92 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 9e1d4c901078 ("net: pass a kernel pointer via 'optlen_t' to proto[ops].getsockopt() hooks") 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, 1 warnings, 3 checks, 92 lines checked