| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20080421233537.GA5223@havoc.gtf.org>
Date: Mon, 21 Apr 2008 19:35:37 -0400
From: Jeff Garzik <jeff@...zik.org>
To: netdev@...r.kernel.org
Cc: LKML <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 2/2] drivers/net: Fix synchronize_irq() bugs, redundancies
free_irq() calls synchronize_irq() for you, so there is no need for
drivers to manually do the same thing (again). Thus, calls where
sync-irq immediately precedes free-irq can be simplified.
Signed-off-by: Jeff Garzik <jgarzik@...hat.com>
---
drivers/net/8139cp.c | 1 -
drivers/net/8139too.c | 1 -
drivers/net/dl2k.c | 2 +-
drivers/net/pci-skeleton.c | 1 -
drivers/net/tsi108_eth.c | 1 -
drivers/net/typhoon.c | 3 ---
6 files changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index a453eda..b92cc15 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -1214,7 +1214,6 @@ static int cp_close (struct net_device *dev)
spin_unlock_irqrestore(&cp->lock, flags);
- synchronize_irq(dev->irq);
free_irq(dev->irq, dev);
cp_free_rings(cp);
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index 53bd903..fbdf831 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -2232,7 +2232,6 @@ static int rtl8139_close (struct net_device *dev)
spin_unlock_irqrestore (&tp->lock, flags);
- synchronize_irq (dev->irq); /* racy, but that's ok here */
free_irq (dev->irq, dev);
rtl8139_tx_clear (tp);
diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index e233d04..05f606d 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -1753,7 +1753,7 @@ rio_close (struct net_device *dev)
/* Stop Tx and Rx logics */
writel (TxDisable | RxDisable | StatsDisable, ioaddr + MACCtrl);
- synchronize_irq (dev->irq);
+
free_irq (dev->irq, dev);
del_timer_sync (&np->timer);
diff --git a/drivers/net/pci-skeleton.c b/drivers/net/pci-skeleton.c
index fffc49b..53451c3 100644
--- a/drivers/net/pci-skeleton.c
+++ b/drivers/net/pci-skeleton.c
@@ -1739,7 +1739,6 @@ static int netdrv_close (struct net_device *dev)
spin_unlock_irqrestore (&tp->lock, flags);
- synchronize_irq (dev->irq);
free_irq (dev->irq, dev);
netdrv_tx_clear (dev);
diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c
index 6f33f84..e75dd88 100644
--- a/drivers/net/tsi108_eth.c
+++ b/drivers/net/tsi108_eth.c
@@ -1434,7 +1434,6 @@ static int tsi108_close(struct net_device *dev)
dev_kfree_skb(skb);
}
- synchronize_irq(data->irq_num);
free_irq(data->irq_num, dev);
/* Discard the RX ring. */
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index 333961b..7d2a4c6 100644
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -334,8 +334,6 @@ enum state_values {
#define TYPHOON_RESET_TIMEOUT_NOSLEEP ((6 * 1000000) / TYPHOON_UDELAY)
#define TYPHOON_WAIT_TIMEOUT ((1000000 / 2) / TYPHOON_UDELAY)
-#define typhoon_synchronize_irq(x) synchronize_irq(x)
-
#if defined(NETIF_F_TSO)
#define skb_tso_size(x) (skb_shinfo(x)->gso_size)
#define TSO_NUM_DESCRIPTORS 2
@@ -2143,7 +2141,6 @@ typhoon_close(struct net_device *dev)
printk(KERN_ERR "%s: unable to stop runtime\n", dev->name);
/* Make sure there is no irq handler running on a different CPU. */
- typhoon_synchronize_irq(dev->irq);
free_irq(dev->irq, dev);
typhoon_free_rx_rings(tp);
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists