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authorFigo.zhang <zhangtianfei@leadcoretech.com>2010-06-07 23:13:22 +0200
committerDavid S. Miller <davem@davemloft.net>2010-06-11 08:14:08 +0200
commit349124a00754129a5f1e43efa84733e364bf3749 (patch)
treeacff33465eb6b21aadca78657a7fa330d6987936 /drivers/net
parentpktgen: Fix accuracy of inter-packet delay. (diff)
downloadlinux-349124a00754129a5f1e43efa84733e364bf3749.tar.xz
linux-349124a00754129a5f1e43efa84733e364bf3749.zip
net8139: fix a race at the end of NAPI
fix a race at the end of NAPI complete processing, it had better do __napi_complete() first before re-enable interrupt. Signed-off-by:Figo.zhang <figo1802@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/8139cp.c2
-rw-r--r--drivers/net/8139too.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index 9c149750e2bf..284a5f4a63ac 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -598,8 +598,8 @@ rx_next:
goto rx_status_loop;
spin_lock_irqsave(&cp->lock, flags);
- cpw16_f(IntrMask, cp_intr_mask);
__napi_complete(napi);
+ cpw16_f(IntrMask, cp_intr_mask);
spin_unlock_irqrestore(&cp->lock, flags);
}
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index 80cd074d3817..97d8068b372b 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -2089,8 +2089,8 @@ static int rtl8139_poll(struct napi_struct *napi, int budget)
* again when we think we are done.
*/
spin_lock_irqsave(&tp->lock, flags);
- RTL_W16_F(IntrMask, rtl8139_intr_mask);
__napi_complete(napi);
+ RTL_W16_F(IntrMask, rtl8139_intr_mask);
spin_unlock_irqrestore(&tp->lock, flags);
}
spin_unlock(&tp->rx_lock);