Merge branch 'uapi-net-sched-cxgb4-fix-wflex-array-member-not-at-end-warning'

Gustavo A. R. Silva says:

====================
UAPI: net/sched - cxgb4: Fix -Wflex-array-member-not-at-end warning

Small patch series aimed at fixing a -Wflex-array-member-not-at-end
warning by creating a new tagged struct within a flexible structure.
We then use this new struct type to fix a problematic middle-flex-array
declaration in a composite struct.
====================

Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32_parse.h

···
 	 * field's value to jump to next header such as IHL field
 	 * in IPv4 header.
 	 */
-	struct tc_u32_sel sel;
+	struct tc_u32_sel_hdr sel;
 	struct tc_u32_key key;
 	/* location of jump to make */
 	const struct cxgb4_match_field *jump;

include/uapi/linux/pkt_cls.h

···
 };
 
 struct tc_u32_sel {
-	unsigned char		flags;
-	unsigned char		offshift;
-	unsigned char		nkeys;
+	/* New members MUST be added within the __struct_group() macro below. */
+	__struct_group(tc_u32_sel_hdr, hdr, /* no attrs */,
+		unsigned char		flags;
+		unsigned char		offshift;
+		unsigned char		nkeys;
 
-	__be16			offmask;
-	__u16			off;
-	short			offoff;
+		__be16			offmask;
+		__u16			off;
+		short			offoff;
 
-	short			hoff;
-	__be32			hmask;
+		short			hoff;
+		__be32			hmask;
+	);
 	struct tc_u32_key	keys[];
 };