octeontx2-af: Check whether ipolicers exists

While displaying ingress policers information in
debugfs check whether ingress policers exist in
the hardware or not because some platforms(CN9XXX)
do not have this feature.

Fixes: e7d8971 ("octeontx2-af: cn10k: Debugfs support for bandwidth")
Signed-off-by: Subbaraya Sundeep <[email protected]>
Signed-off-by: Rakesh Babu <[email protected]>
Signed-off-by: Sunil Kovvuri Goutham <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Subbaraya Sundeep

drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c

@@ -1719,6 +1719,10 @@ static int rvu_dbg_nix_band_prof_ctx_display(struct seq_file *m, void *unused)
 	u16 pcifunc;
 	char *str;
 
+	/* Ingress policers do not exist on all platforms */
+	if (!nix_hw->ipolicer)
+		return 0;
+
 	for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) {
 		if (layer == BAND_PROF_INVAL_LAYER)
 			continue;
@@ -1768,6 +1772,10 @@ static int rvu_dbg_nix_band_prof_rsrc_display(struct seq_file *m, void *unused)
 	int layer;
 	char *str;
 
+	/* Ingress policers do not exist on all platforms */
+	if (!nix_hw->ipolicer)
+		return 0;
+
 	seq_puts(m, "\nBandwidth profile resource free count\n");
 	seq_puts(m, "=====================================\n");
 	for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) {