WARNING: line length of 81 exceeds 80 columns
#95: FILE: include/uapi/linux/netfilter/xt_CONNMARK.h:7:
+#pragma message("xt_CONNMARK.h header is deprecated. Use xt_connmark.h instead.")

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#817: 
deleted file mode 100644

WARNING: line length of 82 exceeds 80 columns
#1760: FILE: net/netfilter/xt_dscp.c:2:
+/* IP tables module for matching and setting the value of the IPv4/IPv6 DSCP field

WARNING: line length of 86 exceeds 80 columns
#2017: FILE: net/netfilter/xt_hl.c:125:
+		csum_replace2(&iph->check, htons(iph->ttl << 8), htons(new_ttl << 8));

WARNING: line length of 84 exceeds 80 columns
#2384: FILE: net/netfilter/xt_rateest.c:366:
+	ret = xt_register_targets(xt_rateest_tg_reg, ARRAY_SIZE(xt_rateest_tg_reg));

WARNING: line length of 88 exceeds 80 columns
#2389: FILE: net/netfilter/xt_rateest.c:371:
+		xt_unregister_targets(xt_rateest_tg_reg, ARRAY_SIZE(xt_rateest_tg_reg));

WARNING: line length of 93 exceeds 80 columns
#2554: FILE: net/netfilter/xt_tcpmss.c:195:
+	for (i = sizeof(struct tcphdr); i <= tcp_hdrlen - TCPOLEN_MSS; i += optlen(opt, i)) {

WARNING: line length of 89 exceeds 80 columns
#2679: FILE: net/netfilter/xt_tcpmss.c:320:
+			skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)oldlen),

total: 0 errors, 8 warnings, 0 checks, 1638 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 b8b23a2d680d ("netfilter: x_tables: Merge xt_*.c source files which has same name.") 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, 8 warnings, 0 checks, 1638 lines checked