diff options
| author | Fuqian Huang <huangfq.daxian@gmail.com> | 2019-08-09 13:35:39 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-08 22:43:34 -0700 |
| commit | 8c25d0887a8bd0e1ca2074ac0c6dff173787a83b (patch) | |
| tree | 8565ba4f2a198116cff66a723b71c7c5a524b8a0 | |
| parent | 227f2f030e28d8783c3d10ce70ff4ba79cad653f (diff) | |
net: tundra: tsi108: use spin_lock_irqsave instead of spin_lock_irq in IRQ context
As spin_unlock_irq will enable interrupts.
Function tsi108_stat_carry is called from interrupt handler tsi108_irq.
Interrupts are enabled in interrupt handler.
Use spin_lock_irqsave/spin_unlock_irqrestore instead of spin_(un)lock_irq
in IRQ context to avoid this.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/tundra/tsi108_eth.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/tundra/tsi108_eth.c b/drivers/net/ethernet/tundra/tsi108_eth.c index 78a7de3fb622..c62f474b6d08 100644 --- a/drivers/net/ethernet/tundra/tsi108_eth.c +++ b/drivers/net/ethernet/tundra/tsi108_eth.c @@ -371,9 +371,10 @@ tsi108_stat_carry_one(int carry, int carry_bit, int carry_shift, static void tsi108_stat_carry(struct net_device *dev) { struct tsi108_prv_data *data = netdev_priv(dev); + unsigned long flags; u32 carry1, carry2; - spin_lock_irq(&data->misclock); + spin_lock_irqsave(&data->misclock, flags); carry1 = TSI_READ(TSI108_STAT_CARRY1); carry2 = TSI_READ(TSI108_STAT_CARRY2); @@ -441,7 +442,7 @@ static void tsi108_stat_carry(struct net_device *dev) TSI108_STAT_TXPAUSEDROP_CARRY, &data->tx_pause_drop); - spin_unlock_irq(&data->misclock); + spin_unlock_irqrestore(&data->misclock, flags); } /* Read a stat counter atomically with respect to carries. |