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authorHarini Katakam <harini.katakam@xilinx.com>2019-05-07 19:59:10 +0530
committerDavid S. Miller <davem@davemloft.net>2019-05-07 12:26:40 -0700
commit0504453139ef5a593c9587e1e851febee859c7d8 (patch)
tree395f6914080e5e7bd294ed7b54a2f3924d3b8c57 /drivers/net/ethernet/intel/igc/igc_main.c
parentff6ab32bd4e073976e4d8797b4d514a172cfe6cb (diff)
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 'drivers/net/ethernet/intel/igc/igc_main.c')
0 files changed, 0 insertions, 0 deletions