WARNING: line length of 89 exceeds 80 columns
#49: FILE: include/net/xfrm.h:1688:
+struct xfrm_state *xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq, u32 pcpu_num);

WARNING: line length of 87 exceeds 80 columns
#58: FILE: include/net/xfrm.h:1800:
+				 u8 mode, u32 reqid, u32 if_id, u32 pcpu_num, u8 proto,

WARNING: line length of 86 exceeds 80 columns
#91: FILE: net/key/af_key.c:1357:
+		x = xfrm_find_acq_byseq(net, DUMMY_MARK, hdr->sadb_msg_seq, UINT_MAX);

WARNING: Missing a blank line after declarations
#167: FILE: net/xfrm/xfrm_state.c:1163:
+	unsigned int pcpu_id = get_cpu();
+	put_cpu();

CHECK: Unnecessary parentheses around 'best->pcpu_num == pcpu_id'
#211: FILE: net/xfrm/xfrm_state.c:1304:
+	if (!(pol->flags & XFRM_POLICY_CPU_ACQUIRE) ||
+	    (best && (best->pcpu_num == pcpu_id)))

WARNING: Block comments use a trailing */ on a separate line
#233: FILE: net/xfrm/xfrm_state.c:1421:
+		 * SA acquire is handled*/

WARNING: line length of 87 exceeds 80 columns
#259: FILE: net/xfrm/xfrm_state.c:1586:
+					  u32 reqid, u32 if_id, u32 pcpu_num, u8 proto,

WARNING: line length of 98 exceeds 80 columns
#284: FILE: net/xfrm/xfrm_state.c:1666:
+static struct xfrm_state *__xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq, u32 pcpu_num);

WARNING: line length of 88 exceeds 80 columns
#302: FILE: net/xfrm/xfrm_state.c:1702:
+				     x->props.reqid, x->if_id, x->pcpu_num, x->id.proto,

WARNING: line length of 97 exceeds 80 columns
#336: FILE: net/xfrm/xfrm_state.c:2245:
+static struct xfrm_state *__xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq, u32 pcpu_num)

WARNING: line length of 88 exceeds 80 columns
#353: FILE: net/xfrm/xfrm_state.c:2263:
+struct xfrm_state *xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq, u32 pcpu_num)

total: 0 errors, 10 warnings, 1 checks, 428 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 45a92300cf1c ("xfrm: Add support for per cpu xfrm state handling.") 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, 10 warnings, 1 checks, 428 lines checked