[PATCH 16/20] drm: drop unused drm_master->unique_size

[David Herrmann]

This field is unused and there is really no reason to optimize
unique-allocations. Drop it.

Signed-off-by: David Herrmann <dh.herrmann at gmail.com>
---
 drivers/gpu/drm/drm_ioctl.c    | 1 -
 drivers/gpu/drm/drm_pci.c      | 4 +---
 drivers/gpu/drm/drm_platform.c | 1 -
 include/drm/drmP.h             | 2 --
 4 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index aa1ac79..cb6b54a 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -189,7 +189,6 @@ drm_unset_busid(struct drm_device *dev,
 	kfree(master->unique);
 	master->unique = NULL;
 	master->unique_len = 0;
-	master->unique_size = 0;
 }
 
 /**
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index 8efea6b..e266927 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -138,7 +138,6 @@ static int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master)
 		return -ENOMEM;
 
 	master->unique_len = strlen(master->unique);
-	master->unique_size = master->unique_len + 1;
 	return 0;
 }
 
@@ -149,8 +148,7 @@ int drm_pci_set_unique(struct drm_device *dev,
 	int domain, bus, slot, func, ret;
 
 	master->unique_len = u->unique_len;
-	master->unique_size = u->unique_len + 1;
-	master->unique = kmalloc(master->unique_size, GFP_KERNEL);
+	master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL);
 	if (!master->unique) {
 		ret = -ENOMEM;
 		goto err;
diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c
index 0c09ddd..f197a2b 100644
--- a/drivers/gpu/drm/drm_platform.c
+++ b/drivers/gpu/drm/drm_platform.c
@@ -82,7 +82,6 @@ static int drm_platform_set_busid(struct drm_device *dev, struct drm_master *mas
 		return -ENOMEM;
 
 	master->unique_len = strlen(master->unique);
-	master->unique_size = master->unique_len;
 	return 0;
 }
 
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index a8b24fc..98b1eaf 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -574,7 +574,6 @@ struct drm_gem_object {
  * @minor: Link back to minor char device we are master for. Immutable.
  * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex.
  * @unique_len: Length of unique field. Protected by drm_global_mutex.
- * @unique_size: Amount allocated. Protected by drm_global_mutex.
  * @magiclist: Hash of used authentication tokens. Protected by struct_mutex.
  * @magicfree: List of used authentication tokens. Protected by struct_mutex.
  * @lock: DRI lock information.
@@ -585,7 +584,6 @@ struct drm_master {
 	struct drm_minor *minor;
 	char *unique;
 	int unique_len;
-	int unique_size;
 	struct drm_open_hash magiclist;
 	struct list_head magicfree;
 	struct drm_lock_data lock;
-- 
2.1.0