1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index 6c5add701a6f..97937809de09 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -163,6 +163,7 @@ that only one external action is invoked at a time.
 #include <linux/firmware.h>
 #include <linux/acpi.h>
 #include <linux/ctype.h>
+#include <linux/latency.h>
 
 #include "ipw2100.h"
 
@@ -1697,6 +1698,11 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
                 return 0;
         }
 
+        /* the ipw2100 hardware really doesn't want power management delays
+         * longer than 175usec
+         */
+        modify_acceptable_latency("ipw2100", 175);
+
         /* If the interrupt is enabled, turn it off... */
         spin_lock_irqsave(&priv->low_lock, flags);
         ipw2100_disable_interrupts(priv);
@@ -1849,6 +1855,8 @@ static void ipw2100_down(struct ipw2100_priv *priv)
         ipw2100_disable_interrupts(priv);
         spin_unlock_irqrestore(&priv->low_lock, flags);
 
+        modify_acceptable_latency("ipw2100", INFINITE_LATENCY);
+
 #ifdef ACPI_CSTATE_LIMIT_DEFINED
         if (priv->config & CFG_C3_DISABLED) {
                 IPW_DEBUG_INFO(": Resetting C3 transitions.\n");
@@ -6534,6 +6542,7 @@ static int __init ipw2100_init(void)
 
         ret = pci_register_driver(&ipw2100_pci_driver);
 
+        set_acceptable_latency("ipw2100", INFINITE_LATENCY);
 #ifdef CONFIG_IPW2100_DEBUG
         ipw2100_debug_level = debug;
         driver_create_file(&ipw2100_pci_driver.driver,
@@ -6554,6 +6563,7 @@ static void __exit ipw2100_exit(void)
                            &driver_attr_debug_level);
 #endif
         pci_unregister_driver(&ipw2100_pci_driver);
+        remove_acceptable_latency("ipw2100");
 }
 
 module_init(ipw2100_init);