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authorZhu, Yi <yi.zhu@intel.com>2008-12-05 07:58:38 -0800
committerJohn W. Linville <linville@tuxdriver.com>2008-12-12 13:48:21 -0500
commitf056658bb9c3085d5ec52fbdd45b38d55b899cc9 (patch)
treebebb9e05a6c9b870383280ca0bb547ee577d762a
parent7262796ab726fcefad9b588a44d1d5a9f221051f (diff)
iwlwifi: fix time interval misuse in iwl_poll_{direct_}bit
The patch fixes the misuse of microsecond with millisecond in the polling mechanism of the iwlwifi driver. The impact of this problem is the unacceptable latency for the whole system (especially during bringing down the wlan interface). Signed-off-by: Zhu Yi <yi.zhu@intel.com> Acked-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945-io.h4
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-io.h4
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-tx.c2
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-io.h b/drivers/net/wireless/iwlwifi/iwl-3945-io.h
index 7dea1552a90..2f749432e4b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-io.h
@@ -93,7 +93,7 @@ static inline int _iwl3945_poll_bit(struct iwl3945_priv *priv, u32 addr,
do {
if ((_iwl3945_read32(priv, addr) & mask) == (bits & mask))
return i;
- mdelay(10);
+ udelay(10);
i += 10;
} while (i < timeout);
@@ -276,7 +276,7 @@ static inline int _iwl3945_poll_direct_bit(struct iwl3945_priv *priv,
do {
if ((_iwl3945_read_direct32(priv, addr) & mask) == mask)
return i;
- mdelay(10);
+ udelay(10);
i += 10;
} while (i < timeout);
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index bc10435d96e..a5c489af937 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h
@@ -95,7 +95,7 @@ static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr,
do {
if ((_iwl_read32(priv, addr) & mask) == (bits & mask))
return i;
- mdelay(10);
+ udelay(10);
i += 10;
} while (i < timeout);
@@ -277,7 +277,7 @@ static inline int _iwl_poll_direct_bit(struct iwl_priv *priv,
do {
if ((_iwl_read_direct32(priv, addr) & mask) == mask)
return i;
- mdelay(10);
+ udelay(10);
i += 10;
} while (i < timeout);
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 18d6cf67d9b..9d7e45f6a53 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -628,7 +628,7 @@ void iwl_txq_ctx_stop(struct iwl_priv *priv)
iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0);
iwl_poll_direct_bit(priv, FH_TSSR_TX_STATUS_REG,
FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch),
- 200);
+ 1000);
}
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);