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Message-ID: <20100531093414.GA2867@serverengines.com>
Date: Mon, 31 May 2010 15:04:14 +0530
From: Sathya Perla <sathyap@...verengines.com>
To: netdev@...r.kernel.org
Subject: [net-next-2.6 PATCH 2/2] be2net: replace udelay() with
schedule_timeout() in mbox polling
As mbox polling is done only in process context, it is better to
use schedule_timeout() instead of udelay().
Signed-off-by: Sathya Perla <sathyap@...verengines.com>
---
drivers/net/benet/be_cmds.c | 11 +++++------
1 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 9d11dbf..c2bd84c 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -186,7 +186,7 @@ static int be_mcc_notify_wait(struct be_adapter *adapter)
static int be_mbox_db_ready_wait(struct be_adapter *adapter, void __iomem *db)
{
- int cnt = 0, wait = 5;
+ int msecs = 0;
u32 ready;
do {
@@ -201,15 +201,14 @@ static int be_mbox_db_ready_wait(struct be_adapter *adapter, void __iomem *db)
if (ready)
break;
- if (cnt > 4000000) {
+ if (msecs > 4000) {
dev_err(&adapter->pdev->dev, "mbox poll timed out\n");
return -1;
}
- if (cnt > 50)
- wait = 200;
- cnt += wait;
- udelay(wait);
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(msecs_to_jiffies(1));
+ msecs++;
} while (true);
return 0;
--
1.6.5.2
--
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