From: Tvrtko Ursulin <tvrtko.ursu...@intel.com>

Since it does not need dev at all.

Also change the stored pointer in struct i915_error_state_file_priv
to i915.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c   | 8 ++++----
 drivers/gpu/drm/i915/i915_drv.c       | 2 +-
 drivers/gpu/drm/i915/i915_drv.h       | 6 +++---
 drivers/gpu/drm/i915/i915_gpu_error.c | 5 ++---
 drivers/gpu/drm/i915/i915_sysfs.c     | 4 ++--
 5 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index 2434130087be..d006ed131a54 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -946,7 +946,7 @@ i915_error_state_write(struct file *filp,
        struct i915_error_state_file_priv *error_priv = filp->private_data;
 
        DRM_DEBUG_DRIVER("Resetting error state\n");
-       i915_destroy_error_state(error_priv->dev);
+       i915_destroy_error_state(error_priv->i915);
 
        return cnt;
 }
@@ -960,7 +960,7 @@ static int i915_error_state_open(struct inode *inode, 
struct file *file)
        if (!error_priv)
                return -ENOMEM;
 
-       error_priv->dev = &dev_priv->drm;
+       error_priv->i915 = dev_priv;
 
        i915_error_state_get(&dev_priv->drm, error_priv);
 
@@ -988,8 +988,8 @@ static ssize_t i915_error_state_read(struct file *file, 
char __user *userbuf,
        ssize_t ret_count = 0;
        int ret;
 
-       ret = i915_error_state_buf_init(&error_str,
-                                       to_i915(error_priv->dev), count, *pos);
+       ret = i915_error_state_buf_init(&error_str, error_priv->i915,
+                                       count, *pos);
        if (ret)
                return ret;
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index fee0b46a04bc..809315cad316 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1307,7 +1307,7 @@ void i915_driver_unload(struct drm_device *dev)
 
        /* Free error state after interrupts are fully disabled. */
        cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work);
-       i915_destroy_error_state(dev);
+       i915_destroy_error_state(dev_priv);
 
        /* Flush any outstanding unpin_work. */
        drain_workqueue(dev_priv->wq);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 44aecad47b21..2006ea033354 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1459,7 +1459,7 @@ struct drm_i915_error_state_buf {
 };
 
 struct i915_error_state_file_priv {
-       struct drm_device *dev;
+       struct drm_i915_private *i915;
        struct drm_i915_error_state *error;
 };
 
@@ -3434,7 +3434,7 @@ void i915_capture_error_state(struct drm_i915_private 
*dev_priv,
 void i915_error_state_get(struct drm_device *dev,
                          struct i915_error_state_file_priv *error_priv);
 void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
-void i915_destroy_error_state(struct drm_device *dev);
+void i915_destroy_error_state(struct drm_i915_private *dev_priv);
 
 #else
 
@@ -3444,7 +3444,7 @@ static inline void i915_capture_error_state(struct 
drm_i915_private *dev_priv,
 {
 }
 
-static inline void i915_destroy_error_state(struct drm_device *dev)
+static inline void i915_destroy_error_state(struct drm_i915_private *dev_priv)
 {
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c 
b/drivers/gpu/drm/i915/i915_gpu_error.c
index 82458ea60150..a14f7badc337 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -514,7 +514,7 @@ static void err_print_capabilities(struct 
drm_i915_error_state_buf *m,
 int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
                            const struct i915_error_state_file_priv *error_priv)
 {
-       struct drm_i915_private *dev_priv = to_i915(error_priv->dev);
+       struct drm_i915_private *dev_priv = error_priv->i915;
        struct pci_dev *pdev = dev_priv->drm.pdev;
        struct drm_i915_error_state *error = error_priv->error;
        struct drm_i915_error_object *obj;
@@ -1644,9 +1644,8 @@ void i915_error_state_put(struct 
i915_error_state_file_priv *error_priv)
                kref_put(&error_priv->error->ref, i915_error_state_free);
 }
 
-void i915_destroy_error_state(struct drm_device *dev)
+void i915_destroy_error_state(struct drm_i915_private *dev_priv)
 {
-       struct drm_i915_private *dev_priv = to_i915(dev);
        struct drm_i915_error_state *error;
 
        spin_lock_irq(&dev_priv->gpu_error.lock);
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c 
b/drivers/gpu/drm/i915/i915_sysfs.c
index 47590ab08d7e..b99fd9668317 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -535,7 +535,7 @@ static ssize_t error_state_read(struct file *filp, struct 
kobject *kobj,
        if (ret)
                return ret;
 
-       error_priv.dev = dev;
+       error_priv.i915 = dev_priv;
        i915_error_state_get(dev, &error_priv);
 
        ret = i915_error_state_to_str(&error_str, &error_priv);
@@ -560,7 +560,7 @@ static ssize_t error_state_write(struct file *file, struct 
kobject *kobj,
        struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
 
        DRM_DEBUG_DRIVER("Resetting error state\n");
-       i915_destroy_error_state(&dev_priv->drm);
+       i915_destroy_error_state(dev_priv);
 
        return count;
 }
-- 
2.7.4

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