WARNING: line length of 86 exceeds 80 columns
#456: FILE: net/homa/homa_plumbing.c:365:
+		hsk->error_msg = "address family in bind address didn't match socket";

WARNING: line length of 124 exceeds 80 columns
#549: FILE: net/homa/homa_plumbing.c:458:
+				hsk->error_msg = "couldn't copy homa_rpc_info to user space: invalid or read-only address?";

WARNING: line length of 93 exceeds 80 columns
#566: FILE: net/homa/homa_plumbing.c:475:
+		hsk->error_msg = "couldn't copy homa_info to user space: read-only address?";

WARNING: line length of 87 exceeds 80 columns
#628: FILE: net/homa/homa_plumbing.c:537:
+		hsk->error_msg = "homa_setsockopt invoked with level not IPPROTO_HOMA";

WARNING: Prefer using '"%s...", __func__' to using 'homa_setsockopt', this function's name, in a string
#628: FILE: net/homa/homa_plumbing.c:537:
+		hsk->error_msg = "homa_setsockopt invoked with level not IPPROTO_HOMA";

WARNING: line length of 108 exceeds 80 columns
#636: FILE: net/homa/homa_plumbing.c:545:
+			hsk->error_msg = "invalid optlen argument: must be sizeof(struct homa_rcvbuf_args)";

WARNING: line length of 81 exceeds 80 columns
#650: FILE: net/homa/homa_plumbing.c:559:
+			hsk->error_msg = "receive buffer region is not writable";

WARNING: line length of 88 exceeds 80 columns
#660: FILE: net/homa/homa_plumbing.c:569:
+			hsk->error_msg = "invalid optlen argument: must be sizeof(int)";

WARNING: line length of 84 exceeds 80 columns
#665: FILE: net/homa/homa_plumbing.c:574:
+			hsk->error_msg = "invalid address for SO_HOMA_SERVER value";

WARNING: line length of 85 exceeds 80 columns
#703: FILE: net/homa/homa_plumbing.c:612:
+		hsk->error_msg = "invalid address for optlen argument to getsockopt";

WARNING: line length of 87 exceeds 80 columns
#708: FILE: net/homa/homa_plumbing.c:617:
+		hsk->error_msg = "homa_setsockopt invoked with level not IPPROTO_HOMA";

WARNING: line length of 108 exceeds 80 columns
#713: FILE: net/homa/homa_plumbing.c:622:
+			hsk->error_msg = "invalid optlen argument: must be sizeof(struct homa_rcvbuf_args)";

WARNING: line length of 88 exceeds 80 columns
#724: FILE: net/homa/homa_plumbing.c:633:
+			hsk->error_msg = "invalid optlen argument: must be sizeof(int)";

WARNING: line length of 93 exceeds 80 columns
#737: FILE: net/homa/homa_plumbing.c:646:
+		hsk->error_msg = "couldn't update optlen argument to getsockopt: read-only?";

WARNING: line length of 93 exceeds 80 columns
#742: FILE: net/homa/homa_plumbing.c:651:
+		hsk->error_msg = "couldn't update optval argument to getsockopt: read-only?";

WARNING: line length of 88 exceeds 80 columns
#774: FILE: net/homa/homa_plumbing.c:683:
+		hsk->error_msg = "msg_control argument for sendmsg isn't in user space";

WARNING: line length of 87 exceeds 80 columns
#780: FILE: net/homa/homa_plumbing.c:689:
+		hsk->error_msg = "invalid address for msg_control argument to sendmsg";

WARNING: line length of 85 exceeds 80 columns
#786: FILE: net/homa/homa_plumbing.c:695:
+		hsk->error_msg = "reserved fields in homa_sendmsg_args must be zero";

WARNING: line length of 91 exceeds 80 columns
#799: FILE: net/homa/homa_plumbing.c:708:
+		hsk->error_msg = "address family in sendmsg address must match the socket";

WARNING: line length of 109 exceeds 80 columns
#832: FILE: net/homa/homa_plumbing.c:741:
+			hsk->error_msg = "couldn't update homa_sendmsg_args argument to sendmsg: read-only?";

WARNING: line length of 97 exceeds 80 columns
#842: FILE: net/homa/homa_plumbing.c:751:
+			hsk->error_msg = "completion_cookie must be zero when sending responses";

WARNING: line length of 82 exceeds 80 columns
#858: FILE: net/homa/homa_plumbing.c:767:
+			hsk->error_msg = "RPC has failed, so can't send response";

WARNING: line length of 94 exceeds 80 columns
#863: FILE: net/homa/homa_plumbing.c:772:
+			hsk->error_msg = "RPC is not in a state where a response can be sent";

WARNING: line length of 87 exceeds 80 columns
#923: FILE: net/homa/homa_plumbing.c:832:
+		hsk->error_msg = "invalid address for msg_control argument to recvmsg";

WARNING: line length of 85 exceeds 80 columns
#934: FILE: net/homa/homa_plumbing.c:843:
+		hsk->error_msg = "reserved fields in homa_recvmsg_args must be zero";

WARNING: line length of 82 exceeds 80 columns
#939: FILE: net/homa/homa_plumbing.c:848:
+		hsk->error_msg = "SO_HOMA_RECVBUF socket option has not been set";

WARNING: line length of 91 exceeds 80 columns
#962: FILE: net/homa/homa_plumbing.c:871:
+			hsk->error_msg = "error while waiting for private RPC to complete";

WARNING: line length of 90 exceeds 80 columns
#973: FILE: net/homa/homa_plumbing.c:882:
+			hsk->error_msg = "error while waiting for shared RPC to complete";

WARNING: line length of 101 exceeds 80 columns
#1046: FILE: net/homa/homa_plumbing.c:955:
+		hsk->error_msg = "couldn't update homa_recvmsg_args argument to recvmsg: read-only?";

total: 0 errors, 29 warnings, 0 checks, 1316 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 495394c76b7e ("net: homa: create homa_plumbing.c") 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, 29 warnings, 0 checks, 1316 lines checked