[PATCH 8/9] drm/i915: Remove unused struct_mutex from drm_i915_private

[Luiz Otavio Mello]

The struct_mutex field in drm_i915_private is no longer used anywhere in
the driver. This patch removes it completely to clean-up unused code and
avoid confusion.

Signed-off-by: Luiz Otavio Mello <luiz.mello at estudante.ufscar.br>
---
 drivers/gpu/drm/i915/i915_driver.c | 2 --
 drivers/gpu/drm/i915/i915_drv.h    | 8 --------
 2 files changed, 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 46b13ab113b0..273bc43468a0 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -238,7 +238,6 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 
 	intel_sbi_init(dev_priv);
 	vlv_iosf_sb_init(dev_priv);
-	mutex_init(&dev_priv->struct_mutex);
 	mutex_init(&dev_priv->sb_lock);
 
 	i915_memcpy_init_early(dev_priv);
@@ -297,7 +296,6 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
 	i915_workqueues_cleanup(dev_priv);
 
 	mutex_destroy(&dev_priv->sb_lock);
-	mutex_destroy(&dev_priv->struct_mutex);
 	vlv_iosf_sb_fini(dev_priv);
 	intel_sbi_fini(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2135ced0d93d..d28e27c08070 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -223,14 +223,6 @@ struct drm_i915_private {
 
 	bool irqs_enabled;
 
-	/*
-	 * Currently, struct_mutex is only used by the i915 driver as a replacement
-	 * for BKL. 
-	 * 
-	 * For this reason, it is no longer part of struct drm_device.
-	*/
-	struct mutex struct_mutex;
-
 	/* LPT/WPT IOSF sideband protection */
 	struct mutex sbi_lock;
 
-- 
2.50.1