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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>
This commit is contained in:
Víctor Manuel Jáquez Leal 2012-03-09 01:03:47 +01:00 committed by Greg Kroah-Hartman
parent a71aa396ee
commit d071c0e9ca
3 changed files with 0 additions and 42 deletions
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4
drivers/staging/tidspbridge/include/dspbridge/dmm.h
View File

@ -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);

6
drivers/staging/tidspbridge/pmgr/dev.c
View File

@ -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++;

32
drivers/staging/tidspbridge/pmgr/dmm.c
View File

@ -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;
@ -171,18 +169,6 @@ int dmm_delete_tables(struct dmm_object *dmm_mgr)
return status;
}
/*
* ======== dmm_exit ========
* Purpose:
* Discontinue usage of module; free resources when reference count
* reaches 0.
*/
void dmm_exit(void)
{
refs--;
}
/*
* ======== dmm_get_handle ========
* Purpose:
@ -205,24 +191,6 @@ int dmm_get_handle(void *hprocessor, struct dmm_object **dmm_manager)
return status;
}
/*
* ======== 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: