staging: tidspbridge: remove dmm_init() and dmm_exit()

The dmm module has a dmm_init() and a dmm_exit() whose only purpose is
to keep a reference counting which is not used at all.

This patch removes these functions and the reference count variable.

There is no functional changes.

Signed-off-by: Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 0 insertions, 42 deletions

diff --git a/drivers/staging/tidspbridge/include/dspbridge/dmm.h b/drivers/staging/tidspbridge/include/dspbridge/dmm.h
index 6c58335c5f6..c3487be8fcf 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/dmm.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/dmm.h
@@ -61,10 +61,6 @@ extern int dmm_create(struct dmm_object **dmm_manager,
                              struct dev_object *hdev_obj,
                              const struct dmm_mgrattrs *mgr_attrts);
 
-extern bool dmm_init(void);
-
-extern void dmm_exit(void);
-
 extern int dmm_create_tables(struct dmm_object *dmm_mgr,
                                     u32 addr, u32 size);
 
diff --git a/drivers/staging/tidspbridge/pmgr/dev.c b/drivers/staging/tidspbridge/pmgr/dev.c
index 734d47ed9a8..c5e627ce8b8 100644
--- a/drivers/staging/tidspbridge/pmgr/dev.c
+++ b/drivers/staging/tidspbridge/pmgr/dev.c
@@ -657,9 +657,6 @@ int dev_get_bridge_context(struct dev_object *hdev_obj,
 void dev_exit(void)
 {
         refs--;
-
-        if (refs == 0)
-                dmm_exit();
 }
 
 /*
@@ -671,9 +668,6 @@ bool dev_init(void)
 {
         bool ret = true;
 
-        if (refs == 0)
-                dmm_init();
-
         if (ret)
                 refs++;
 
diff --git a/drivers/staging/tidspbridge/pmgr/dmm.c b/drivers/staging/tidspbridge/pmgr/dmm.c
index 83faff885f1..7c9f8391606 100644
--- a/drivers/staging/tidspbridge/pmgr/dmm.c
+++ b/drivers/staging/tidspbridge/pmgr/dmm.c
@@ -51,8 +51,6 @@ struct dmm_object {
         spinlock_t dmm_lock;    /* Lock to access dmm mgr */
 };
 
-/*  ----------------------------------- Globals */
-static u32 refs;                /* module reference count */
 struct map_page {
         u32 region_size:15;
         u32 mapped_size:15;
@@ -172,18 +170,6 @@ int dmm_delete_tables(struct dmm_object *dmm_mgr)
 }
 
 /*
- *  ======== dmm_exit ========
- *  Purpose:
- *      Discontinue usage of module; free resources when reference count
- *      reaches 0.
- */
-void dmm_exit(void)
-{
-
-        refs--;
-}
-
-/*
  *  ======== dmm_get_handle ========
  *  Purpose:
  *      Return the dynamic memory manager object for this device.
@@ -206,24 +192,6 @@ int dmm_get_handle(void *hprocessor, struct dmm_object **dmm_manager)
 }
 
 /*
- *  ======== dmm_init ========
- *  Purpose:
- *      Initializes private state of DMM module.
- */
-bool dmm_init(void)
-{
-        bool ret = true;
-
-        if (ret)
-                refs++;
-
-        virtual_mapping_table = NULL;
-        table_size = 0;
-
-        return ret;
-}
-
-/*
  *  ======== dmm_map_memory ========
  *  Purpose:
  *      Add a mapping block to the reserved chunk. DMM assumes that this block