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| author | Harini Katakam | 2019-05-07 16:29:10 +0200 |
|---|---|---|
| committer | David S. Miller | 2019-05-07 21:26:40 +0200 |
| commit | 0504453139ef5a593c9587e1e851febee859c7d8 (patch) | |
| tree | 395f6914080e5e7bd294ed7b54a2f3924d3b8c57 /fs/btrfs/raid56.c | |
| parent | vrf: sit mtu should not be updated when vrf netdev is the link (diff) | |
| download | kernel-qcow2-linux-0504453139ef5a593c9587e1e851febee859c7d8.tar.gz kernel-qcow2-linux-0504453139ef5a593c9587e1e851febee859c7d8.tar.xz kernel-qcow2-linux-0504453139ef5a593c9587e1e851febee859c7d8.zip | |
net: macb: Change interrupt and napi enable order in open
Current order in open:
-> Enable interrupts (macb_init_hw)
-> Enable NAPI
-> Start PHY
Sequence of RX handling:
-> RX interrupt occurs
-> Interrupt is cleared and interrupt bits disabled in handler
-> NAPI is scheduled
-> In NAPI, RX budget is processed and RX interrupts are re-enabled
With the above, on QEMU or fixed link setups (where PHY state doesn't
matter), there's a chance macb RX interrupt occurs before NAPI is
enabled. This will result in NAPI being scheduled before it is enabled.
Fix this macb open by changing the order.
Fixes: ae1f2a56d273 ("net: macb: Added support for many RX queues")
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/btrfs/raid56.c')
0 files changed, 0 insertions, 0 deletions