mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 14:34:28 +08:00
intel_th: Streamline the subdevice tree accessors
Make to_intel_th*() accessors available from the main header file. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
This commit is contained in:
parent
5376be63ff
commit
5e06723af9
drivers/hwtracing/intel_th
@ -156,21 +156,6 @@ static struct device_type intel_th_source_device_type = {
|
||||
.release = intel_th_device_release,
|
||||
};
|
||||
|
||||
static struct intel_th *to_intel_th(struct intel_th_device *thdev)
|
||||
{
|
||||
/*
|
||||
* subdevice tree is flat: if this one is not a switch, its
|
||||
* parent must be
|
||||
*/
|
||||
if (thdev->type != INTEL_TH_SWITCH)
|
||||
thdev = to_intel_th_hub(thdev);
|
||||
|
||||
if (WARN_ON_ONCE(!thdev || thdev->type != INTEL_TH_SWITCH))
|
||||
return NULL;
|
||||
|
||||
return dev_get_drvdata(thdev->dev.parent);
|
||||
}
|
||||
|
||||
static char *intel_th_output_devnode(struct device *dev, umode_t *mode,
|
||||
kuid_t *uid, kgid_t *gid)
|
||||
{
|
||||
|
@ -173,7 +173,7 @@ struct intel_th_driver {
|
||||
((_d) ? to_intel_th_driver(_d) : NULL)
|
||||
|
||||
static inline struct intel_th_device *
|
||||
to_intel_th_hub(struct intel_th_device *thdev)
|
||||
to_intel_th_parent(struct intel_th_device *thdev)
|
||||
{
|
||||
struct device *parent = thdev->dev.parent;
|
||||
|
||||
@ -183,6 +183,29 @@ to_intel_th_hub(struct intel_th_device *thdev)
|
||||
return to_intel_th_device(parent);
|
||||
}
|
||||
|
||||
static inline struct intel_th_device *
|
||||
to_intel_th_hub(struct intel_th_device *thdev)
|
||||
{
|
||||
/*
|
||||
* subdevice tree is flat: if this one is not a switch, its
|
||||
* parent must be
|
||||
*/
|
||||
if (thdev->type == INTEL_TH_SWITCH)
|
||||
return thdev;
|
||||
|
||||
return to_intel_th_parent(thdev);
|
||||
}
|
||||
|
||||
static inline struct intel_th *to_intel_th(struct intel_th_device *thdev)
|
||||
{
|
||||
thdev = to_intel_th_hub(thdev);
|
||||
|
||||
if (WARN_ON_ONCE(!thdev || thdev->type != INTEL_TH_SWITCH))
|
||||
return NULL;
|
||||
|
||||
return dev_get_drvdata(thdev->dev.parent);
|
||||
}
|
||||
|
||||
struct intel_th *
|
||||
intel_th_alloc(struct device *dev, struct resource *devres,
|
||||
unsigned int ndevres, int irq);
|
||||
|
Loading…
Reference in New Issue
Block a user