af5c6df704
In CPSW NAPI, after processing all interrupts IRQ is enabled and then book keeping irq_enabled is updated. In random cases when a packet is transmitted or received between processing packets and IRQ enabled, then just after enabled IRQ and before irq_enabled is updated, ISR is called so IRQs are not disabled as irq_enabled is still false and CPU gets locked in CPSW ISR. By changing the sequence as update the irq_enabled and then enable IRQ fixes the issue. This issue is not captured always as it is a timing issue whether Tx or Rx IRQ is invoked between packet processing and enable IRQ. Cc: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| appletalk | ||
| arcnet | ||
| bonding | ||
| caif | ||
| can | ||
| cris | ||
| dsa | ||
| ethernet | ||
| fddi | ||
| hamradio | ||
| hippi | ||
| hyperv | ||
| ieee802154 | ||
| irda | ||
| phy | ||
| plip | ||
| ppp | ||
| slip | ||
| team | ||
| usb | ||
| vmxnet3 | ||
| wan | ||
| wimax | ||
| wireless | ||
| xen-netback | ||
| Kconfig | ||
| LICENSE.SRC | ||
| Makefile | ||
| Space.c | ||
| dummy.c | ||
| eql.c | ||
| ifb.c | ||
| loopback.c | ||
| macvlan.c | ||
| macvtap.c | ||
| mdio.c | ||
| mii.c | ||
| netconsole.c | ||
| ntb_netdev.c | ||
| rionet.c | ||
| sb1000.c | ||
| sungem_phy.c | ||
| tun.c | ||
| veth.c | ||
| virtio_net.c | ||
| vxlan.c | ||
| xen-netfront.c | ||