A static count of transfer descriptors was used everywhere in the driver
with the fixed number 5. This patch adds a define, named TD_PAGE_COUNT,
and replaces all users of this value. This way its possible to have only
one parameter to change and limit the amount of buffer pointers per TD.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
/******************************************************************************
* DEFINE
*****************************************************************************/
+#define TD_PAGE_COUNT 5
#define CI13XXX_PAGE_SIZE 4096ul /* page size for TD's */
#define ENDPT_MAX 32
mReq->ptr->token |= cpu_to_le32(TD_IOC);
}
mReq->ptr->page[0] = cpu_to_le32(mReq->req.dma);
- for (i = 1; i < 5; i++) {
+ for (i = 1; i < TD_PAGE_COUNT; i++) {
u32 page = mReq->req.dma + i * CI13XXX_PAGE_SIZE;
page &= ~TD_RESERVED_MASK;
mReq->ptr->page[i] = cpu_to_le32(page);
return -EBUSY;
}
- if (req->length > 4 * CI13XXX_PAGE_SIZE) {
+ if (req->length > (TD_PAGE_COUNT - 1) * CI13XXX_PAGE_SIZE) {
dev_err(mEp->ci->dev, "request bigger than one td\n");
return -EMSGSIZE;
}