CHECK: Alignment should match open parenthesis
#45: FILE: net/ipv6/ip6_output.c:183:
+	if (unlikely(!(IP6CB(skb)->flags & IP6SKB_FAKEJUMBO) &&
+	    !skb_gso_validate_network_len(skb, mtu)))

WARNING: line length of 81 exceeds 80 columns
#56: FILE: net/ipv6/ip6_output.c:206:
+	    (IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size)))

CHECK: Alignment should match open parenthesis
#56: FILE: net/ipv6/ip6_output.c:206:
+	if (unlikely(skb->len > mtu ||
+	    (IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size)))

CHECK: Unnecessary parentheses around 'skb->len <= mtu'
#74: FILE: net/ipv6/ip6_output.c:357:
+	if (likely((skb->len <= mtu) || skb->ignore_df || skb_is_gso(skb))) {

total: 0 errors, 1 warnings, 3 checks, 84 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 c1e4f33ca262 ("ipv6: add some unlikely()/likely() clauses in ip6_output.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, 1 warnings, 3 checks, 84 lines checked