X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fnet%2Fdm9000.c;h=3f5eb81cc2aa34718e0646299ada34e61683ac45;hb=d32fe5ddfd35e865d13f2fa829591ffe189e8752;hp=31b8bef49d2e1a15323634f29b72b8453815b0e8;hpb=cc2cef505ccd434acd7fb3cee2b9cbf2a5294369;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 31b8bef49d2e..3f5eb81cc2aa 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -471,17 +471,13 @@ static uint32_t dm9000_get_rx_csum(struct net_device *dev)
 	return dm->rx_csum;
 }
 
-static int dm9000_set_rx_csum(struct net_device *dev, uint32_t data)
+static int dm9000_set_rx_csum_unlocked(struct net_device *dev, uint32_t data)
 {
 	board_info_t *dm = to_dm9000_board(dev);
-	unsigned long flags;
 
 	if (dm->can_csum) {
 		dm->rx_csum = data;
-
-		spin_lock_irqsave(&dm->lock, flags);
 		iow(dm, DM9000_RCSR, dm->rx_csum ? RCSR_CSUM : 0);
-		spin_unlock_irqrestore(&dm->lock, flags);
 
 		return 0;
 	}
@@ -489,6 +485,19 @@ static int dm9000_set_rx_csum(struct net_device *dev, uint32_t data)
 	return -EOPNOTSUPP;
 }
 
+static int dm9000_set_rx_csum(struct net_device *dev, uint32_t data)
+{
+	board_info_t *dm = to_dm9000_board(dev);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&dm->lock, flags);
+	ret = dm9000_set_rx_csum_unlocked(dev, data);
+	spin_unlock_irqrestore(&dm->lock, flags);
+
+	return ret;
+}
+
 static int dm9000_set_tx_csum(struct net_device *dev, uint32_t data)
 {
 	board_info_t *dm = to_dm9000_board(dev);
@@ -667,7 +676,7 @@ static unsigned char dm9000_type_to_char(enum dm9000_type type)
  *  Set DM9000 multicast address
  */
 static void
-dm9000_hash_table(struct net_device *dev)
+dm9000_hash_table_unlocked(struct net_device *dev)
 {
 	board_info_t *db = netdev_priv(dev);
 	struct dev_mc_list *mcptr = dev->mc_list;
@@ -676,12 +685,9 @@ dm9000_hash_table(struct net_device *dev)
 	u32 hash_val;
 	u16 hash_table[4];
 	u8 rcr = RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN;
-	unsigned long flags;
 
 	dm9000_dbg(db, 1, "entering %s\n", __func__);
 
-	spin_lock_irqsave(&db->lock, flags);
-
 	for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
 		iow(db, oft, dev->dev_addr[i]);
 
@@ -711,6 +717,16 @@ dm9000_hash_table(struct net_device *dev)
 	}
 
 	iow(db, DM9000_RCR, rcr);
+}
+
+static void
+dm9000_hash_table(struct net_device *dev)
+{
+	board_info_t *db = netdev_priv(dev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&db->lock, flags);
+	dm9000_hash_table_unlocked(dev);
 	spin_unlock_irqrestore(&db->lock, flags);
 }
 
@@ -729,7 +745,7 @@ dm9000_init_dm9000(struct net_device *dev)
 	db->io_mode = ior(db, DM9000_ISR) >> 6;	/* ISR bit7:6 keeps I/O mode */
 
 	/* Checksum mode */
-	dm9000_set_rx_csum(dev, db->rx_csum);
+	dm9000_set_rx_csum_unlocked(dev, db->rx_csum);
 
 	/* GPIO0 on pre-activate PHY */
 	iow(db, DM9000_GPR, 0);	/* REG_1F bit0 activate phyxcer */
@@ -749,7 +765,7 @@ dm9000_init_dm9000(struct net_device *dev)
 	iow(db, DM9000_ISR, ISR_CLR_STATUS); /* Clear interrupt status */
 
 	/* Set address filter table */
-	dm9000_hash_table(dev);
+	dm9000_hash_table_unlocked(dev);
 
 	imr = IMR_PAR | IMR_PTM | IMR_PRM;
 	if (db->type != TYPE_DM9000E)