==========
checkpatch - FAILED

WARNING: line length of 89 exceeds 80 columns
#227: FILE: include/linux/net.h:196:
+				      int optname, char __user *optval, optlen_t optlen);

WARNING: do not add new typedefs
#239: FILE: include/linux/sockptr.h:172:
+typedef struct {

WARNING: line length of 109 exceeds 80 columns
#506: FILE: net/bluetooth/rfcomm/sock.c:725:
+static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, optlen_t optlen)

WARNING: line length of 116 exceeds 80 columns
#515: FILE: net/bluetooth/rfcomm/sock.c:801:
+static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, optlen_t optlen)

ERROR: space prohibited before that close parenthesis ')'
#629: FILE: net/dccp/ccid.h:109:
+				  char __user *, optlen_t );

WARNING: line length of 83 exceeds 80 columns
#767: FILE: net/ipv4/raw.c:810:
+static int raw_geticmpfilter(struct sock *sk, char __user *optval, optlen_t optlen)

WARNING: line length of 94 exceeds 80 columns
#1021: FILE: net/mptcp/sockopt.c:994:
+static int mptcp_getsockopt_info(struct mptcp_sock *msk, char __user *optval, optlen_t optlen)

WARNING: line length of 100 exceeds 80 columns
#1335: FILE: net/sctp/socket.c:5613:
+static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optval, optlen_t optlen)

WARNING: line length of 98 exceeds 80 columns
#1344: FILE: net/sctp/socket.c:5715:
+static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval, optlen_t optlen)

WARNING: line length of 81 exceeds 80 columns
#1362: FILE: net/sctp/socket.c:5916:
+					    char __user *optval, optlen_t optlen)

WARNING: line length of 98 exceeds 80 columns
#1380: FILE: net/sctp/socket.c:6132:
+static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, optlen_t optlen)

WARNING: line length of 84 exceeds 80 columns
#1497: FILE: net/sctp/socket.c:6807:
+					       char __user *optval, optlen_t optlen)

total: 1 errors, 11 warnings, 0 checks, 1330 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 1c21583210f5 ("net: pass '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.