Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-10 15:10:38 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

qtnfmac: fix INTx interrupt handling

Browse Source 
In the current implementation INTx interrupt is deasserted after the
control path processing. However this may lead to missed interrupts
from the wireless card. For instance, this may happen as a result
of control path activity, when another interrupt arrives before
INTx is deasserted.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sergey Matyukevich 2019-01-14 09:39:36 +00:00 committed by Kalle Valo
parent 126824f5ce
commit d1365e794e
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
View File

@ -559,6 +559,9 @@ static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data)
if (!priv->msi_enabled && !qtnf_topaz_intx_asserted(ts))
return IRQ_NONE;
if (!priv->msi_enabled)
qtnf_deassert_intx(ts);
priv->pcie_irq_count++;
qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in);
@ -571,9 +574,6 @@ static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data)
tasklet_hi_schedule(&priv->reclaim_tq);
if (!priv->msi_enabled)
qtnf_deassert_intx(ts);
return IRQ_HANDLED;
}