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staging: ccree: refactor code with local vars 

Refactor the queue handling loop using local variables for better
code readability.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gilad Ben-Yossef 2017-11-13 14:45:45 +00:00 committed by Greg Kroah-Hartman
parent 5e1de0e737
commit 896d236f74
1 changed files with 7 additions and 9 deletions
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16
drivers/staging/ccree/ssi_request_mgr.c
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@ -476,6 +476,8 @@ static void proc_completions(struct ssi_drvdata *drvdata)
struct device *dev = drvdata_to_dev(drvdata);
struct ssi_request_mgr_handle *request_mgr_handle =
drvdata->request_mgr_handle;
unsigned int *tail = &request_mgr_handle->req_queue_tail;
unsigned int *head = &request_mgr_handle->req_queue_head;
#if defined(CONFIG_PM)
int rc = 0;
#endif
@ -484,18 +486,17 @@ static void proc_completions(struct ssi_drvdata *drvdata)
request_mgr_handle->axi_completed--;
/* Dequeue request */
if (unlikely(request_mgr_handle->req_queue_head ==
request_mgr_handle->req_queue_tail)) {
if (unlikely(*head == *tail)) {
/* We are supposed to handle a completion but our
* queue is empty. This is not normal. Return and
* hope for the best.
*/
dev_err(dev, "Request queue is empty head == tail %u\n",
request_mgr_handle->req_queue_head);
*head);
break;
}
ssi_req = &request_mgr_handle->req_queue[request_mgr_handle->req_queue_tail];
ssi_req = &request_mgr_handle->req_queue[*tail];
#ifdef FLUSH_CACHE_ALL
flush_cache_all();
@ -516,11 +517,8 @@ static void proc_completions(struct ssi_drvdata *drvdata)
if (likely(ssi_req->user_cb))
ssi_req->user_cb(dev, ssi_req->user_arg);
request_mgr_handle->req_queue_tail =
(request_mgr_handle->req_queue_tail + 1) &
(MAX_REQUEST_QUEUE_SIZE - 1);
dev_dbg(dev, "Dequeue request tail=%u\n",
request_mgr_handle->req_queue_tail);
*tail = (*tail + 1) & (MAX_REQUEST_QUEUE_SIZE - 1);
dev_dbg(dev, "Dequeue request tail=%u\n", *tail);
dev_dbg(dev, "Request completed. axi_completed=%d\n",
request_mgr_handle->axi_completed);
#if defined(CONFIG_PM)