linux-kernel - [PATCH 1/3] qla3xxx: ethernet: Fix bogus interrupt state flag.

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Message-Id: <1330700945-18195-1-git-send-email-santoshprasadnayak@gmail.com>
Date:	Fri,  2 Mar 2012 20:39:05 +0530
From:	santosh nayak <santoshprasadnayak@...il.com>
To:	jitendra.kalsaria@...gic.com
Cc:	ron.mercer@...gic.com, linux-driver@...gic.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Santosh Nayak <santoshprasadnayak@...il.com>
Subject: [PATCH 1/3] qla3xxx: ethernet: Fix bogus interrupt state flag.

From: Santosh Nayak <santoshprasadnayak@...il.com>

In 'ql_adapter_initialize'
the first call for 'spin_unlock_irqrestore()' is with hw_flags = 0,
which is as good as 'spin_unlock_irq()' (unconditional interrupt
enabling). If this is intended, then for better performance
'spin_unlock_irqrestore()' can be replaced with 'spin_unlock_irq()'
and 'spin_lock_irqsave()' can be replaced by 'spin_lock_irq()

Signed-off-by: Santosh Nayak <santoshprasadnayak@...il.com>
---
 drivers/net/ethernet/qlogic/qla3xxx.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index d49f6da..8da3e41 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -3017,7 +3017,6 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
 		(void __iomem *)port_regs;
 	u32 delay = 10;
 	int status = 0;
-	unsigned long hw_flags = 0;
 
 	if (ql_mii_setup(qdev))
 		return -1;
@@ -3228,9 +3227,9 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
 		value = ql_read_page0_reg(qdev, &port_regs->portStatus);
 		if (value & PORT_STATUS_IC)
 			break;
-		spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
+		spin_unlock_irq(&qdev->hw_lock);
 		msleep(500);
-		spin_lock_irqsave(&qdev->hw_lock, hw_flags);
+		spin_lock_irq(&qdev->hw_lock);
 	} while (--delay);
 
 	if (delay == 0) {
-- 
1.7.4.4

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