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authorDavid S. Miller <davem@davemloft.net>2009-09-02 00:32:56 -0700
committerDavid S. Miller <davem@davemloft.net>2009-09-02 00:32:56 -0700
commit6cdee2f96a97f6da26bd3759c3f8823332fbb438 (patch)
treeec79086f05ffc3bdf1aecc37e108ccfc3a95450d /drivers/net/bnx2.c
parent0625491493d9000e4556bf566d205c28c8e7dc4e (diff)
parent2fbd3da3877ad8d923b055e5996f80b4d4a6daf4 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/yellowfin.c
Diffstat (limited to 'drivers/net/bnx2.c')
-rw-r--r--drivers/net/bnx2.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index fcaf3bc8277..1357d548e69 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -401,9 +401,11 @@ static int bnx2_unregister_cnic(struct net_device *dev)
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
+ mutex_lock(&bp->cnic_lock);
cp->drv_state = 0;
bnapi->cnic_present = 0;
rcu_assign_pointer(bp->cnic_ops, NULL);
+ mutex_unlock(&bp->cnic_lock);
synchronize_rcu();
return 0;
}
@@ -431,13 +433,13 @@ bnx2_cnic_stop(struct bnx2 *bp)
struct cnic_ops *c_ops;
struct cnic_ctl_info info;
- rcu_read_lock();
- c_ops = rcu_dereference(bp->cnic_ops);
+ mutex_lock(&bp->cnic_lock);
+ c_ops = bp->cnic_ops;
if (c_ops) {
info.cmd = CNIC_CTL_STOP_CMD;
c_ops->cnic_ctl(bp->cnic_data, &info);
}
- rcu_read_unlock();
+ mutex_unlock(&bp->cnic_lock);
}
static void
@@ -446,8 +448,8 @@ bnx2_cnic_start(struct bnx2 *bp)
struct cnic_ops *c_ops;
struct cnic_ctl_info info;
- rcu_read_lock();
- c_ops = rcu_dereference(bp->cnic_ops);
+ mutex_lock(&bp->cnic_lock);
+ c_ops = bp->cnic_ops;
if (c_ops) {
if (!(bp->flags & BNX2_FLAG_USING_MSIX)) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
@@ -457,7 +459,7 @@ bnx2_cnic_start(struct bnx2 *bp)
info.cmd = CNIC_CTL_START_CMD;
c_ops->cnic_ctl(bp->cnic_data, &info);
}
- rcu_read_unlock();
+ mutex_unlock(&bp->cnic_lock);
}
#else
@@ -7687,6 +7689,9 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
spin_lock_init(&bp->phy_lock);
spin_lock_init(&bp->indirect_lock);
+#ifdef BCM_CNIC
+ mutex_init(&bp->cnic_lock);
+#endif
INIT_WORK(&bp->reset_task, bnx2_reset_task);
dev->base_addr = dev->mem_start = pci_resource_start(pdev, 0);