latency.c: use QoS infrastructure

Replace latency.c use with pm_qos_params use.

Signed-off-by: mark gross <mgross@linux.intel.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index 2ab107f..5bf9e00 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -162,7 +162,7 @@
 #include <linux/firmware.h>
 #include <linux/acpi.h>
 #include <linux/ctype.h>
-#include <linux/latency.h>
+#include <linux/pm_qos_params.h>
 
 #include "ipw2100.h"
 
@@ -1701,7 +1701,7 @@
 	/* the ipw2100 hardware really doesn't want power management delays
 	 * longer than 175usec
 	 */
-	modify_acceptable_latency("ipw2100", 175);
+	pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", 175);
 
 	/* If the interrupt is enabled, turn it off... */
 	spin_lock_irqsave(&priv->low_lock, flags);
@@ -1856,7 +1856,8 @@
 	ipw2100_disable_interrupts(priv);
 	spin_unlock_irqrestore(&priv->low_lock, flags);
 
-	modify_acceptable_latency("ipw2100", INFINITE_LATENCY);
+	pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100",
+			PM_QOS_DEFAULT_VALUE);
 
 	/* We have to signal any supplicant if we are disassociating */
 	if (associated)
@@ -6554,7 +6555,8 @@
 	if (ret)
 		goto out;
 
-	set_acceptable_latency("ipw2100", INFINITE_LATENCY);
+	pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100",
+			PM_QOS_DEFAULT_VALUE);
 #ifdef CONFIG_IPW2100_DEBUG
 	ipw2100_debug_level = debug;
 	ret = driver_create_file(&ipw2100_pci_driver.driver,
@@ -6576,7 +6578,7 @@
 			   &driver_attr_debug_level);
 #endif
 	pci_unregister_driver(&ipw2100_pci_driver);
-	remove_acceptable_latency("ipw2100");
+	pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100");
 }
 
 module_init(ipw2100_init);