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authorTony Zelenoff <antonz@parallels.com>2012-04-13 10:09:51 +0400
committerDavid S. Miller <davem@davemloft.net>2012-04-15 20:56:02 +0400
commitaa45ba90b59b7a18b067b898a8cc8ccf8cbbb261 (patch)
treedd77024474a8360036886a0202fd7439789f43c6 /drivers/net/ethernet/atheros
parent02d5d11bfa6d94676856c048a8471a4014368492 (diff)
downloadlinux-aa45ba90b59b7a18b067b898a8cc8ccf8cbbb261.tar.xz
atl1: add value to check ability of reenabling IRQs
Unfortunately it is not clear from code is usage of IMR register possible or not. So, to prevent possible side-effects of reading this register i prefer store interrupts enable flag separately. Signed-off-by: Tony Zelenoff <antonz@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/atheros')
-rw-r--r--drivers/net/ethernet/atheros/atlx/atl1.h6
-rw-r--r--drivers/net/ethernet/atheros/atlx/atlx.c2
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.h b/drivers/net/ethernet/atheros/atlx/atl1.h
index 71bb50dfc5fa..117a0da360b8 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.h
+++ b/drivers/net/ethernet/atheros/atlx/atl1.h
@@ -783,6 +783,12 @@ struct atl1_adapter {
u16 ict; /* interrupt clear timer (2us resolution */
struct mii_if_info mii; /* MII interface info */
+ /*
+ * Use this value to check is napi handler allowed to
+ * enable ints or not
+ */
+ bool int_enabled;
+
u32 bd_number; /* board number */
bool pci_using_64;
struct atl1_hw hw;
diff --git a/drivers/net/ethernet/atheros/atlx/atlx.c b/drivers/net/ethernet/atheros/atlx/atlx.c
index ee83e1cc8b20..95975b5b7f70 100644
--- a/drivers/net/ethernet/atheros/atlx/atlx.c
+++ b/drivers/net/ethernet/atheros/atlx/atlx.c
@@ -169,6 +169,7 @@ static inline void atlx_imr_set(struct atlx_adapter *adapter,
static void atlx_irq_enable(struct atlx_adapter *adapter)
{
atlx_imr_set(adapter, IMR_NORMAL_MASK);
+ adapter->int_enabled = true;
}
/*
@@ -177,6 +178,7 @@ static void atlx_irq_enable(struct atlx_adapter *adapter)
*/
static void atlx_irq_disable(struct atlx_adapter *adapter)
{
+ adapter->int_enabled = false;
atlx_imr_set(adapter, 0);
synchronize_irq(adapter->pdev->irq);
}