net: mscc: ocelot: remove unnecessary variable

Commit 2f187bfa ("net: ethernet: ocelot: remove the need for num_stats
initializer") added a flags field to the ocelot stats structure. The same
behavior can be achieved without this additional field taking up extra
memory.

Remove this structure element to free up RAM
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

include/soc/mscc/ocelot.h

@@ -105,11 +105,9 @@
 #define REG_RESERVED_ADDR		0xffffffff
 #define REG_RESERVED(reg)		REG(reg, REG_RESERVED_ADDR)
 
-#define OCELOT_STAT_FLAG_END		BIT(0)
-
 #define for_each_stat(ocelot, stat)				\
 	for ((stat) = ocelot->stats_layout;			\
-	     !((stat)->flags & OCELOT_STAT_FLAG_END);		\
+	     ((stat)->name[0] != '\0');				\
 	     (stat)++)
 
 enum ocelot_target {
@@ -542,11 +540,10 @@ enum ocelot_ptp_pins {
 
 struct ocelot_stat_layout {
 	u32 offset;
-	u32 flags;
 	char name[ETH_GSTRING_LEN];
 };
 
-#define OCELOT_STAT_END { .flags = OCELOT_STAT_FLAG_END }
+#define OCELOT_STAT_END { .name = "" }
 
 struct ocelot_stats_region {
 	struct list_head node;