amd-xgbe: Enable IRQs only if napi_complete_done() is true

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Depending on the hardware, the amd-xgbe driver may use disable_irq_nosync()
and enable_irq() when an interrupt is received to process Rx packets. If
the napi_complete_done() return value isn't checked an unbalanced enable
for the IRQ could result, generating a warning stack trace.

Update the driver to only enable interrupts if napi_complete_done() returns
true.

Reported-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Lendacky, Thomas 2017-03-09 17:48:23 -06:00 • committed by David S. Miller

parent 6fc166d62c

commit d7aba644ff

1 changed files with 2 additions and 8 deletions

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10

drivers/net/ethernet/amd/xgbe/xgbe-drv.c

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