net: stmmac: rename rx_crc to rx_crc_errors

The ethtool stat counter rx_crc from stmmac is mis-named, the name
seems to speak about the number of RX CRC done, but in fact it is about
errors.

This patch rename it to rx_crc_errors, just like the same ifconfig
counter.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/common.h

@@ -67,7 +67,7 @@ struct stmmac_extra_stats {
 	unsigned long overflow_error;
 	unsigned long ipc_csum_error;
 	unsigned long rx_collision;
-	unsigned long rx_crc;
+	unsigned long rx_crc_errors;
 	unsigned long dribbling_bit;
 	unsigned long rx_length;
 	unsigned long rx_mii;

drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c

@@ -103,7 +103,7 @@ static int dwmac4_wrback_get_rx_status(void *data, struct stmmac_extra_stats *x,
 			x->rx_mii++;
 
 		if (unlikely(rdes3 & RDES3_CRC_ERROR)) {
-			x->rx_crc++;
+			x->rx_crc_errors++;
 			stats->rx_crc_errors++;
 		}
 

drivers/net/ethernet/stmicro/stmmac/enh_desc.c

@@ -221,7 +221,7 @@ static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
 			x->rx_mii++;
 
 		if (unlikely(rdes0 & RDES0_CRC_ERROR)) {
-			x->rx_crc++;
+			x->rx_crc_errors++;
 			stats->rx_crc_errors++;
 		}
 		ret = discard_frame;

drivers/net/ethernet/stmicro/stmmac/norm_desc.c

@@ -111,7 +111,7 @@ static int ndesc_get_rx_status(void *data, struct stmmac_extra_stats *x,
 			stats->collisions++;
 		}
 		if (unlikely(rdes0 & RDES0_CRC_ERROR)) {
-			x->rx_crc++;
+			x->rx_crc_errors++;
 			stats->rx_crc_errors++;
 		}
 		ret = discard_frame;

drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

@@ -61,7 +61,7 @@ static const struct stmmac_stats stmmac_gstrings_stats[] = {
 	STMMAC_STAT(overflow_error),
 	STMMAC_STAT(ipc_csum_error),
 	STMMAC_STAT(rx_collision),
-	STMMAC_STAT(rx_crc),
+	STMMAC_STAT(rx_crc_errors),
 	STMMAC_STAT(dribbling_bit),
 	STMMAC_STAT(rx_length),
 	STMMAC_STAT(rx_mii),