WARNING: please, no space before tabs
#74: FILE: include/net/netfilter/nf_tables.h:291:
+ * ^I@flags: flags$

WARNING: line length of 90 exceeds 80 columns
#174: FILE: net/netfilter/nft_set_rbtree.c:319:
+	return (priv->start_rbe_cookie & ~NFT_RBTREE_OPEN_INTERVAL) == (unsigned long)rbe;

WARNING: line length of 87 exceeds 80 columns
#183: FILE: net/netfilter/nft_set_rbtree.c:349:
+			       struct nft_elem_priv **elem_priv, u64 tstamp, bool last)

WARNING: line length of 82 exceeds 80 columns
#271: FILE: net/netfilter/nft_set_rbtree.c:688:
+		err = __nft_rbtree_insert(net, set, rbe, elem_priv, tstamp, last);

CHECK: braces {} should be used on all arms of this statement
#295: FILE: net/netfilter/nft_set_rbtree.c:822:
+			if (nft_rbtree_interval_start(rbe)) {
[...]
+			} else if (!nft_rbtree_deactivate_same_interval(net, priv, rbe))
[...]

WARNING: line length of 88 exceeds 80 columns
#298: FILE: net/netfilter/nft_set_rbtree.c:825:
+			} else if (!nft_rbtree_deactivate_same_interval(net, priv, rbe))

total: 0 errors, 5 warnings, 1 checks, 215 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 752a818a29c5 ("netfilter: nft_set_rbtree: validate open interval overlap") 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, 5 warnings, 1 checks, 215 lines checked