pm_qos: Get rid of the allocation in pm_qos_add_request()
All current users of pm_qos_add_request() have the ability to supply
the memory required by the pm_qos routines, so make them do this and
eliminate the kmalloc() with pm_qos_add_request(). This has the
double benefit of making the call never fail and allowing it to be
called from atomic context.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: mark gross <markgross@thegnar.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 57a7e41..9f13b66 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -2901,10 +2901,10 @@
* dropped transactions.
*/
pm_qos_update_request(
- adapter->netdev->pm_qos_req, 55);
+ &adapter->netdev->pm_qos_req, 55);
} else {
pm_qos_update_request(
- adapter->netdev->pm_qos_req,
+ &adapter->netdev->pm_qos_req,
PM_QOS_DEFAULT_VALUE);
}
}
@@ -3196,9 +3196,9 @@
/* DMA latency requirement to workaround early-receive/jumbo issue */
if (adapter->flags & FLAG_HAS_ERT)
- adapter->netdev->pm_qos_req =
- pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ pm_qos_add_request(&adapter->netdev->pm_qos_req,
+ PM_QOS_CPU_DMA_LATENCY,
+ PM_QOS_DEFAULT_VALUE);
/* hardware has been reset, we need to reload some things */
e1000_configure(adapter);
@@ -3263,11 +3263,8 @@
e1000_clean_tx_ring(adapter);
e1000_clean_rx_ring(adapter);
- if (adapter->flags & FLAG_HAS_ERT) {
- pm_qos_remove_request(
- adapter->netdev->pm_qos_req);
- adapter->netdev->pm_qos_req = NULL;
- }
+ if (adapter->flags & FLAG_HAS_ERT)
+ pm_qos_remove_request(&adapter->netdev->pm_qos_req);
/*
* TODO: for power management, we could drop the link and
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index 5e2b2a8..add6197 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -48,7 +48,7 @@
#define DRV_VERSION "1.0.0-k0"
char igbvf_driver_name[] = "igbvf";
const char igbvf_driver_version[] = DRV_VERSION;
-struct pm_qos_request_list *igbvf_driver_pm_qos_req;
+static struct pm_qos_request_list igbvf_driver_pm_qos_req;
static const char igbvf_driver_string[] =
"Intel(R) Virtual Function Network Driver";
static const char igbvf_copyright[] = "Copyright (c) 2009 Intel Corporation.";
@@ -2902,8 +2902,8 @@
printk(KERN_INFO "%s\n", igbvf_copyright);
ret = pci_register_driver(&igbvf_driver);
- igbvf_driver_pm_qos_req = pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ pm_qos_add_request(&igbvf_driver_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
+ PM_QOS_DEFAULT_VALUE);
return ret;
}
@@ -2918,8 +2918,7 @@
static void __exit igbvf_exit_module(void)
{
pci_unregister_driver(&igbvf_driver);
- pm_qos_remove_request(igbvf_driver_pm_qos_req);
- igbvf_driver_pm_qos_req = NULL;
+ pm_qos_remove_request(&igbvf_driver_pm_qos_req);
}
module_exit(igbvf_exit_module);
diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 0bd4dfa..7f0d98b 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -174,7 +174,7 @@
#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
-struct pm_qos_request_list *ipw2100_pm_qos_req;
+struct pm_qos_request_list ipw2100_pm_qos_req;
/* Debugging stuff */
#ifdef CONFIG_IPW2100_DEBUG
@@ -1741,7 +1741,7 @@
/* the ipw2100 hardware really doesn't want power management delays
* longer than 175usec
*/
- pm_qos_update_request(ipw2100_pm_qos_req, 175);
+ pm_qos_update_request(&ipw2100_pm_qos_req, 175);
/* If the interrupt is enabled, turn it off... */
spin_lock_irqsave(&priv->low_lock, flags);
@@ -1889,7 +1889,7 @@
ipw2100_disable_interrupts(priv);
spin_unlock_irqrestore(&priv->low_lock, flags);
- pm_qos_update_request(ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
+ pm_qos_update_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
/* We have to signal any supplicant if we are disassociating */
if (associated)
@@ -6669,8 +6669,8 @@
if (ret)
goto out;
- ipw2100_pm_qos_req = pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ pm_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
+ PM_QOS_DEFAULT_VALUE);
#ifdef CONFIG_IPW2100_DEBUG
ipw2100_debug_level = debug;
ret = driver_create_file(&ipw2100_pci_driver.driver,
@@ -6692,7 +6692,7 @@
&driver_attr_debug_level);
#endif
pci_unregister_driver(&ipw2100_pci_driver);
- pm_qos_remove_request(ipw2100_pm_qos_req);
+ pm_qos_remove_request(&ipw2100_pm_qos_req);
}
module_init(ipw2100_init);