diff options
author | Steve Wise <swise@opengridcomputing.com> | 2008-07-08 17:40:05 -0400 |
---|---|---|
committer | Roland Dreier <rolandd@cisco.com> | 2008-07-08 17:40:05 -0400 |
commit | 5e19cf663be534c7c15a35a86fa7ddc9f797e4f4 (patch) | |
tree | 32fa3b0fdc33698a307c60289701d27282397f8e /drivers | |
parent | 62786b9e81a2dbe9c073a2ade52d33a2627d6d85 (diff) |
RDMA/cxgb3: Fix regression caused by class_device -> device conversion
The change to iwch_provider.c in commit f4e91eb4 ("IB: convert struct
class_device to struct device") undid the fix done in commit 7f049f2f
("RDMA/cxgb3: Hold rtnl_lock() around ethtool get_drvinfo call"). It
removed the calls to rtnl_lock() that serialized the iw_cxgb3 ethtool
ops calls into the cxgb3 driver. This locking is needed to avoid
messing up the internal state of the cxgb3 driver.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch_provider.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index 8934178a23e..95f82cfb6c5 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c | |||
@@ -1096,7 +1096,9 @@ static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, ch | |||
1096 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | 1096 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
1097 | 1097 | ||
1098 | PDBG("%s dev 0x%p\n", __func__, dev); | 1098 | PDBG("%s dev 0x%p\n", __func__, dev); |
1099 | rtnl_lock(); | ||
1099 | lldev->ethtool_ops->get_drvinfo(lldev, &info); | 1100 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1101 | rtnl_unlock(); | ||
1100 | return sprintf(buf, "%s\n", info.fw_version); | 1102 | return sprintf(buf, "%s\n", info.fw_version); |
1101 | } | 1103 | } |
1102 | 1104 | ||
@@ -1109,7 +1111,9 @@ static ssize_t show_hca(struct device *dev, struct device_attribute *attr, | |||
1109 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | 1111 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
1110 | 1112 | ||
1111 | PDBG("%s dev 0x%p\n", __func__, dev); | 1113 | PDBG("%s dev 0x%p\n", __func__, dev); |
1114 | rtnl_lock(); | ||
1112 | lldev->ethtool_ops->get_drvinfo(lldev, &info); | 1115 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1116 | rtnl_unlock(); | ||
1113 | return sprintf(buf, "%s\n", info.driver); | 1117 | return sprintf(buf, "%s\n", info.driver); |
1114 | } | 1118 | } |
1115 | 1119 | ||