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Subject[PATCH 06/17] staging: tidspbridge: remove strm_init() and strm_exit()
Date
The strm module has a strm_init() and a strm_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>
---
.../staging/tidspbridge/include/dspbridge/strm.h | 38 +-------------------
drivers/staging/tidspbridge/pmgr/dspapi.c | 7 +---
drivers/staging/tidspbridge/rmgr/strm.c | 28 --------------
3 files changed, 2 insertions(+), 71 deletions(-)
diff --git a/drivers/staging/tidspbridge/include/dspbridge/strm.h b/drivers/staging/tidspbridge/include/dspbridge/strm.h
index 613fe53..dacf0c23 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/strm.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/strm.h
@@ -40,7 +40,6 @@
* -EPERM: Failure occurred, unable to allocate buffers.
* -EINVAL: usize must be > 0 bytes.
* Requires:
- * strm_init(void) called.
* ap_buffer != NULL.
* Ensures:
*/
@@ -63,7 +62,6 @@ extern int strm_allocate_buffer(struct strm_res_object *strmres,
* been reclaimed.
* -EPERM: Failure to close stream.
* Requires:
- * strm_init(void) called.
* Ensures:
*/
extern int strm_close(struct strm_res_object *strmres,
@@ -83,7 +81,6 @@ extern int strm_close(struct strm_res_object *strmres,
* -ENOMEM: Insufficient memory for requested resources.
* -EPERM: General failure.
* Requires:
- * strm_init(void) called.
* strm_man != NULL.
* dev_obj != NULL.
* Ensures:
@@ -101,7 +98,6 @@ extern int strm_create(struct strm_mgr **strm_man,
* strm_mgr_obj: Handle to STRM manager object from strm_create.
* Returns:
* Requires:
- * strm_init(void) called.
* Valid strm_mgr_obj.
* Ensures:
* strm_mgr_obj is not valid.
@@ -109,18 +105,6 @@ extern int strm_create(struct strm_mgr **strm_man,
extern void strm_delete(struct strm_mgr *strm_mgr_obj);

/*
- * ======== strm_exit ========
- * Purpose:
- * Discontinue usage of STRM module.
- * Parameters:
- * Returns:
- * Requires:
- * strm_init(void) successfully called before.
- * Ensures:
- */
-extern void strm_exit(void);
-
-/*
* ======== strm_free_buffer ========
* Purpose:
* Free buffer(s) allocated with strm_allocate_buffer.
@@ -133,7 +117,6 @@ extern void strm_exit(void);
* -EFAULT: Invalid stream handle.
* -EPERM: Failure occurred, unable to free buffers.
* Requires:
- * strm_init(void) called.
* ap_buffer != NULL.
* Ensures:
*/
@@ -156,7 +139,6 @@ extern int strm_free_buffer(struct strm_res_object *strmres,
* -EINVAL: stream_info_size < sizeof(dsp_streaminfo).
* -EPERM: Unable to get stream info.
* Requires:
- * strm_init(void) called.
* stream_info != NULL.
* Ensures:
*/
@@ -184,24 +166,11 @@ extern int strm_get_info(struct strm_object *stream_obj,
* -ETIME: A timeout occurred before the stream could be idled.
* -EPERM: Unable to idle stream.
* Requires:
- * strm_init(void) called.
* Ensures:
*/
extern int strm_idle(struct strm_object *stream_obj, bool flush_data);

/*
- * ======== strm_init ========
- * Purpose:
- * Initialize the STRM module.
- * Parameters:
- * Returns:
- * TRUE if initialization succeeded, FALSE otherwise.
- * Requires:
- * Ensures:
- */
-extern bool strm_init(void);
-
-/*
* ======== strm_issue ========
* Purpose:
* Send a buffer of data to a stream.
@@ -217,8 +186,7 @@ extern bool strm_init(void);
* -ENOSR: The stream is full.
* -EPERM: Failure occurred, unable to issue buffer.
* Requires:
- * strm_init(void) called.
- * pbuf != NULL.
+* pbuf != NULL.
* Ensures:
*/
extern int strm_issue(struct strm_object *stream_obj, u8 * pbuf,
@@ -244,7 +212,6 @@ extern int strm_issue(struct strm_object *stream_obj, u8 * pbuf,
* Unable to open stream.
* -EINVAL: Invalid index.
* Requires:
- * strm_init(void) called.
* strmres != NULL.
* pattr != NULL.
* Ensures:
@@ -275,7 +242,6 @@ extern int strm_open(struct node_object *hnode, u32 dir,
* retrieved.
* -EPERM: Failure occurred, unable to reclaim buffer.
* Requires:
- * strm_init(void) called.
* buf_ptr != NULL.
* nbytes != NULL.
* pdw_arg != NULL.
@@ -302,7 +268,6 @@ extern int strm_reclaim(struct strm_object *stream_obj,
* -ENOSYS: Notification type specified by notify_type is not
* supported.
* Requires:
- * strm_init(void) called.
* hnotification != NULL.
* Ensures:
*/
@@ -328,7 +293,6 @@ extern int strm_register_notify(struct strm_object *stream_obj,
* -ETIME: A timeout occurred before a stream became ready.
* -EPERM: Failure occurred, unable to select a stream.
* Requires:
- * strm_init(void) called.
* strm_tab != NULL.
* strms > 0.
* pmask != NULL.
diff --git a/drivers/staging/tidspbridge/pmgr/dspapi.c b/drivers/staging/tidspbridge/pmgr/dspapi.c
index b1a99f7..06e3b24 100644
--- a/drivers/staging/tidspbridge/pmgr/dspapi.c
+++ b/drivers/staging/tidspbridge/pmgr/dspapi.c
@@ -271,7 +271,6 @@ void api_exit(void)
chnl_exit();
msg_exit();
io_exit();
- strm_exit();
mgr_exit();
rmm_exit();
}
@@ -286,12 +285,11 @@ bool api_init(void)
{
bool ret = true;
bool fdev, fchnl, fmsg, fio;
- bool fmgr, fstrm, frmm;
+ bool fmgr, frmm;

if (api_c_refs == 0) {
/* initialize driver and other modules */
fmgr = mgr_init();
- fstrm = strm_init();
frmm = rmm_init();
fchnl = chnl_init();
fmsg = msg_mod_init();
@@ -304,9 +302,6 @@ bool api_init(void)
if (fmgr)
mgr_exit();

- if (fstrm)
- strm_exit();
-
if (fchnl)
chnl_exit();

diff --git a/drivers/staging/tidspbridge/rmgr/strm.c b/drivers/staging/tidspbridge/rmgr/strm.c
index bd684f1..34cc934 100644
--- a/drivers/staging/tidspbridge/rmgr/strm.c
+++ b/drivers/staging/tidspbridge/rmgr/strm.c
@@ -81,9 +81,6 @@ struct strm_object {
struct cmm_xlatorobject *xlator;
};

-/* ----------------------------------- Globals */
-static u32 refs; /* module reference count */
-
/* ----------------------------------- Function Prototypes */
static int delete_strm(struct strm_object *stream_obj);

@@ -222,16 +219,6 @@ void strm_delete(struct strm_mgr *strm_mgr_obj)
}

/*
- * ======== strm_exit ========
- * Purpose:
- * Discontinue usage of STRM module.
- */
-void strm_exit(void)
-{
- refs--;
-}
-
-/*
* ======== strm_free_buffer ========
* Purpose:
* Frees the buffers allocated for a stream.
@@ -350,21 +337,6 @@ int strm_idle(struct strm_object *stream_obj, bool flush_data)
}

/*
- * ======== strm_init ========
- * Purpose:
- * Initialize the STRM module.
- */
-bool strm_init(void)
-{
- bool ret = true;
-
- if (ret)
- refs++;
-
- return ret;
-}
-
-/*
* ======== strm_issue ========
* Purpose:
* Issues a buffer on a stream
--
1.7.9.1
--
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