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Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/coretemp.c28
-rw-r--r--drivers/hwmon/hwmon.c32
-rw-r--r--drivers/hwmon/ibmaem.c47
3 files changed, 20 insertions, 87 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 932383786642..ce18c046f728 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -325,15 +325,6 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
return adjust_tjmax(c, id, dev);
}
-static void __devinit get_ucode_rev_on_cpu(void *edx)
-{
- u32 eax;
-
- wrmsr(MSR_IA32_UCODE_REV, 0, 0);
- sync_core();
- rdmsr(MSR_IA32_UCODE_REV, eax, *(u32 *)edx);
-}
-
static int create_name_attr(struct platform_data *pdata, struct device *dev)
{
sysfs_attr_init(&pdata->name_attr.attr);
@@ -380,27 +371,16 @@ exit_free:
static int __cpuinit chk_ucode_version(unsigned int cpu)
{
struct cpuinfo_x86 *c = &cpu_data(cpu);
- int err;
- u32 edx;
/*
* Check if we have problem with errata AE18 of Core processors:
* Readings might stop update when processor visited too deep sleep,
* fixed for stepping D0 (6EC).
*/
- if (c->x86_model == 0xe && c->x86_mask < 0xc) {
- /* check for microcode update */
- err = smp_call_function_single(cpu, get_ucode_rev_on_cpu,
- &edx, 1);
- if (err) {
- pr_err("Cannot determine microcode revision of "
- "CPU#%u (%d)!\n", cpu, err);
- return -ENODEV;
- } else if (edx < 0x39) {
- pr_err("Errata AE18 not fixed, update BIOS or "
- "microcode of the CPU!\n");
- return -ENODEV;
- }
+ if (c->x86_model == 0xe && c->x86_mask < 0xc && c->microcode < 0x39) {
+ pr_err("Errata AE18 not fixed, update BIOS or "
+ "microcode of the CPU!\n");
+ return -ENODEV;
}
return 0;
}
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index a61e7815a2a9..6460487e41b5 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -27,8 +27,7 @@
static struct class *hwmon_class;
-static DEFINE_IDR(hwmon_idr);
-static DEFINE_SPINLOCK(idr_lock);
+static DEFINE_IDA(hwmon_ida);
/**
* hwmon_device_register - register w/ hwmon
@@ -42,30 +41,17 @@ static DEFINE_SPINLOCK(idr_lock);
struct device *hwmon_device_register(struct device *dev)
{
struct device *hwdev;
- int id, err;
-
-again:
- if (unlikely(idr_pre_get(&hwmon_idr, GFP_KERNEL) == 0))
- return ERR_PTR(-ENOMEM);
-
- spin_lock(&idr_lock);
- err = idr_get_new(&hwmon_idr, NULL, &id);
- spin_unlock(&idr_lock);
+ int id;
- if (unlikely(err == -EAGAIN))
- goto again;
- else if (unlikely(err))
- return ERR_PTR(err);
+ id = ida_simple_get(&hwmon_ida, 0, 0, GFP_KERNEL);
+ if (id < 0)
+ return ERR_PTR(id);
- id = id & MAX_ID_MASK;
hwdev = device_create(hwmon_class, dev, MKDEV(0, 0), NULL,
HWMON_ID_FORMAT, id);
- if (IS_ERR(hwdev)) {
- spin_lock(&idr_lock);
- idr_remove(&hwmon_idr, id);
- spin_unlock(&idr_lock);
- }
+ if (IS_ERR(hwdev))
+ ida_simple_remove(&hwmon_ida, id);
return hwdev;
}
@@ -81,9 +67,7 @@ void hwmon_device_unregister(struct device *dev)
if (likely(sscanf(dev_name(dev), HWMON_ID_FORMAT, &id) == 1)) {
device_unregister(dev);
- spin_lock(&idr_lock);
- idr_remove(&hwmon_idr, id);
- spin_unlock(&idr_lock);
+ ida_simple_remove(&hwmon_ida, id);
} else
dev_dbg(dev->parent,
"hwmon_device_unregister() failed: bad class ID!\n");
diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
index c316294c48b4..783d0c17b762 100644
--- a/drivers/hwmon/ibmaem.c
+++ b/drivers/hwmon/ibmaem.c
@@ -88,8 +88,7 @@
#define AEM_MIN_POWER_INTERVAL 200
#define UJ_PER_MJ 1000L
-static DEFINE_IDR(aem_idr);
-static DEFINE_SPINLOCK(aem_idr_lock);
+static DEFINE_IDA(aem_ida);
static struct platform_driver aem_driver = {
.driver = {
@@ -356,38 +355,6 @@ static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
complete(&data->read_complete);
}
-/* ID functions */
-
-/* Obtain an id */
-static int aem_idr_get(int *id)
-{
- int i, err;
-
-again:
- if (unlikely(!idr_pre_get(&aem_idr, GFP_KERNEL)))
- return -ENOMEM;
-
- spin_lock(&aem_idr_lock);
- err = idr_get_new(&aem_idr, NULL, &i);
- spin_unlock(&aem_idr_lock);
-
- if (unlikely(err == -EAGAIN))
- goto again;
- else if (unlikely(err))
- return err;
-
- *id = i & MAX_ID_MASK;
- return 0;
-}
-
-/* Release an object ID */
-static void aem_idr_put(int id)
-{
- spin_lock(&aem_idr_lock);
- idr_remove(&aem_idr, id);
- spin_unlock(&aem_idr_lock);
-}
-
/* Sensor support functions */
/* Read a sensor value */
@@ -530,7 +497,7 @@ static void aem_delete(struct aem_data *data)
ipmi_destroy_user(data->ipmi.user);
platform_set_drvdata(data->pdev, NULL);
platform_device_unregister(data->pdev);
- aem_idr_put(data->id);
+ ida_simple_remove(&aem_ida, data->id);
kfree(data);
}
@@ -587,7 +554,8 @@ static int aem_init_aem1_inst(struct aem_ipmi_data *probe, u8 module_handle)
data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;
/* Create sub-device for this fw instance */
- if (aem_idr_get(&data->id))
+ data->id = ida_simple_get(&aem_ida, 0, 0, GFP_KERNEL);
+ if (data->id < 0)
goto id_err;
data->pdev = platform_device_alloc(DRVNAME, data->id);
@@ -638,7 +606,7 @@ ipmi_err:
platform_set_drvdata(data->pdev, NULL);
platform_device_unregister(data->pdev);
dev_err:
- aem_idr_put(data->id);
+ ida_simple_remove(&aem_ida, data->id);
id_err:
kfree(data);
@@ -720,7 +688,8 @@ static int aem_init_aem2_inst(struct aem_ipmi_data *probe,
data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;
/* Create sub-device for this fw instance */
- if (aem_idr_get(&data->id))
+ data->id = ida_simple_get(&aem_ida, 0, 0, GFP_KERNEL);
+ if (data->id < 0)
goto id_err;
data->pdev = platform_device_alloc(DRVNAME, data->id);
@@ -771,7 +740,7 @@ ipmi_err:
platform_set_drvdata(data->pdev, NULL);
platform_device_unregister(data->pdev);
dev_err:
- aem_idr_put(data->id);
+ ida_simple_remove(&aem_ida, data->id);
id_err:
kfree(data);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-28 11:14:51 +0000