via-velocity: add velocity_set_rxbufsize helper

It removes a dependancy from velocity_init_rd_ring to dev->mtu.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index 086d69c19920..370ce30f2f45 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -1207,6 +1207,11 @@ static int velocity_rx_refill(struct velocity_info *vptr)
         return done;
 }
 
+static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
+{
+        vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
+}
+
 /**
  *      velocity_init_rd_ring   -       set up receive ring
  *      @vptr: velocity to configure
@@ -1217,11 +1222,8 @@ static int velocity_rx_refill(struct velocity_info *vptr)
 
 static int velocity_init_rd_ring(struct velocity_info *vptr)
 {
-        int mtu = vptr->dev->mtu;
         int ret = -ENOMEM;
 
-        vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
-
         vptr->rd_info = kcalloc(vptr->options.numrx,
                                 sizeof(struct velocity_rd_info), GFP_KERNEL);
         if (!vptr->rd_info)
@@ -1860,6 +1862,8 @@ static int velocity_open(struct net_device *dev)
         struct velocity_info *vptr = netdev_priv(dev);
         int ret;
 
+        velocity_set_rxbufsize(vptr, dev->mtu);
+
         ret = velocity_init_rings(vptr);
         if (ret < 0)
                 goto out;
@@ -1941,6 +1945,8 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
 
                 dev->mtu = new_mtu;
 
+                velocity_set_rxbufsize(vptr, new_mtu);
+
                 ret = velocity_init_rd_ring(vptr);
                 if (ret < 0)
                         goto out_unlock;