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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2020-04-16 18:57:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-21 10:03:03 +0300 |
| commit | 10cea886f08910092732bc580e2319557fd8bef3 (patch) | |
| tree | 61779361ccadffa4d6f10e532eace6d3f4b8a6fb /drivers/net/ethernet/amd | |
| parent | 8488c3f3bc867e4422bf00b303d7d1fbe829d528 (diff) | |
| download | linux-10cea886f08910092732bc580e2319557fd8bef3.tar.xz | |
amd-xgbe: Use __napi_schedule() in BH context
[ Upstream commit d518691cbd3be3dae218e05cca3f3fc9b2f1aa77 ]
The driver uses __napi_schedule_irqoff() which is fine as long as it is
invoked with disabled interrupts by everybody. Since the commit
mentioned below the driver may invoke xgbe_isr_task() in tasklet/softirq
context. This may lead to list corruption if another driver uses
__napi_schedule_irqoff() in IRQ context.
Use __napi_schedule() which safe to use from IRQ and softirq context.
Fixes: 85b85c853401d ("amd-xgbe: Re-issue interrupt if interrupt status not cleared")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/amd')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index d96a84a62d78..5519eff58441 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -515,7 +515,7 @@ static void xgbe_isr_task(unsigned long data) xgbe_disable_rx_tx_ints(pdata); /* Turn on polling */ - __napi_schedule_irqoff(&pdata->napi); + __napi_schedule(&pdata->napi); } } else { /* Don't clear Rx/Tx status if doing per channel DMA |