WARNING: line length of 99 exceeds 80 columns
#38: FILE: net/ipv4/esp4.c:364:
+	/* For IPv4 ESP with UDP encapsulation, if xo is not null, the skb is in the crypto offload

WARNING: line length of 96 exceeds 80 columns
#39: FILE: net/ipv4/esp4.c:365:
+	 * data path, which means that esp_output_udp_encap is called outside of the XFRM stack.

WARNING: line length of 98 exceeds 80 columns
#40: FILE: net/ipv4/esp4.c:366:
+	 * In this case, the mac header doesn't point to the IPv4 protocol field, so don't set it.

WARNING: line length of 98 exceeds 80 columns
#67: FILE: net/ipv4/esp4_offload.c:303:
+	if (!hw_offload || !skb_is_gso(skb) || (hw_offload && encap_type == UDP_ENCAP_ESPINUDP)) {

WARNING: line length of 93 exceeds 80 columns
#76: FILE: net/ipv4/esp4_offload.c:331:
+		/* In the XFRM stack, the encapsulation protocol is set to iphdr->protocol by

WARNING: line length of 98 exceeds 80 columns
#77: FILE: net/ipv4/esp4_offload.c:332:
+		 * setting *skb_mac_header(skb) (see esp_output_udp_encap()) where skb->mac_header

WARNING: line length of 92 exceeds 80 columns
#79: FILE: net/ipv4/esp4_offload.c:334:
+		 * However, in esp_xmit(), skb->mac_header doesn't point to iphdr->protocol.

total: 0 errors, 7 warnings, 0 checks, 56 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 b740df58a97c ("xfrm: Support crypto offload for outbound IPv4 UDP-encapsulated ESP packet") 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, 7 warnings, 0 checks, 56 lines checked