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| author | Stephen Hemminger <shemminger@osdl.org> | 2005-07-22 16:26:05 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-07-31 00:40:53 -0400 |
| commit | 4ff6ac052b90ee4dfee92f8e2c5cb7ef8a4d8f13 (patch) | |
| tree | ab81d2c692be6fb3f8e207238ff283401b8cafe4 /drivers/net/skge.c | |
| parent | 0eedf4ac5b536c7922263adf1b1d991d2e2397b9 (diff) | |
| download | kernel_samsung_smdk4412-4ff6ac052b90ee4dfee92f8e2c5cb7ef8a4d8f13.zip kernel_samsung_smdk4412-4ff6ac052b90ee4dfee92f8e2c5cb7ef8a4d8f13.tar.gz kernel_samsung_smdk4412-4ff6ac052b90ee4dfee92f8e2c5cb7ef8a4d8f13.tar.bz2 | |
[PATCH] skge: phy lock deadlock
Cleanup the phy_lock deadlock because of relocking in the nway_reset path.
Reported by Francois Romieu.
Also, don't need to do irqsave/restore for blink,
just excluding bh is good enough.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net/skge.c')
| -rw-r--r-- | drivers/net/skge.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 3adef3c..9fa5195 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c @@ -668,14 +668,13 @@ static void skge_blink_timer(unsigned long data) { struct skge_port *skge = (struct skge_port *) data; struct skge_hw *hw = skge->hw; - unsigned long flags; - spin_lock_irqsave(&hw->phy_lock, flags); + spin_lock_bh(&hw->phy_lock); if (skge->blink_on) skge_led_on(hw, skge->port); else skge_led_off(hw, skge->port); - spin_unlock_irqrestore(&hw->phy_lock, flags); + spin_unlock_bh(&hw->phy_lock); skge->blink_on = !skge->blink_on; mod_timer(&skge->led_blink, jiffies + BLINK_HZ); @@ -1208,7 +1207,6 @@ static void genesis_mac_init(struct skge_hw *hw, int port) * namely for the 1000baseTX cards that use the XMAC's * GMII mode. */ - spin_lock_bh(&hw->phy_lock); /* Take external Phy out of reset */ r = skge_read32(hw, B2_GP_IO); if (port == 0) @@ -1218,7 +1216,6 @@ static void genesis_mac_init(struct skge_hw *hw, int port) skge_write32(hw, B2_GP_IO, r); skge_read32(hw, B2_GP_IO); - spin_unlock_bh(&hw->phy_lock); /* Enable GMII interfac */ xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); @@ -1744,9 +1741,7 @@ static void yukon_mac_init(struct skge_hw *hw, int port) gma_write16(hw, port, GM_GP_CTRL, reg); skge_read16(hw, GMAC_IRQ_SRC); - spin_lock_bh(&hw->phy_lock); yukon_init(hw, port); - spin_unlock_bh(&hw->phy_lock); /* MIB clear */ reg = gma_read16(hw, port, GM_PHY_ADDR); @@ -2096,10 +2091,12 @@ static int skge_up(struct net_device *dev) skge_write32(hw, B0_IMSK, hw->intr_mask); /* Initialze MAC */ + spin_lock_bh(&hw->phy_lock); if (hw->chip_id == CHIP_ID_GENESIS) genesis_mac_init(hw, port); else yukon_mac_init(hw, port); + spin_unlock_bh(&hw->phy_lock); /* Configure RAMbuffers */ chunk = hw->ram_size / ((hw->ports + 1)*2); |