dmaengine: ste_dma40: minor code readability fixes

Use internal variables to the cycles to improve code readability, no
functional changes.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 623779e580c35fedd8eaac2276707aa575ca73d3..e317debdbe5a86a5989882fb18cd163a6ac4df00 100644 (file)
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -639,19 +639,18 @@ static int d40_lcla_alloc_one(struct d40_chan *d40c,
        unsigned long flags;
        int i;
        int ret = -EINVAL;
-       int p;
 
        spin_lock_irqsave(&d40c->base->lcla_pool.lock, flags);
 
-       p = d40c->phy_chan->num * D40_LCLA_LINK_PER_EVENT_GRP;
-
        /*
         * Allocate both src and dst at the same time, therefore the half
         * start on 1 since 0 can't be used since zero is used as end marker.
         */
        for (i = 1 ; i < D40_LCLA_LINK_PER_EVENT_GRP / 2; i++) {
-               if (!d40c->base->lcla_pool.alloc_map[p + i]) {
-                       d40c->base->lcla_pool.alloc_map[p + i] = d40d;
+               int idx = d40c->phy_chan->num * D40_LCLA_LINK_PER_EVENT_GRP + i;
+
+               if (!d40c->base->lcla_pool.alloc_map[idx]) {
+                       d40c->base->lcla_pool.alloc_map[idx] = d40d;
                        d40d->lcla_alloc++;
                        ret = i;
                        break;
@@ -676,10 +675,10 @@ static int d40_lcla_free_all(struct d40_chan *d40c,
        spin_lock_irqsave(&d40c->base->lcla_pool.lock, flags);
 
        for (i = 1 ; i < D40_LCLA_LINK_PER_EVENT_GRP / 2; i++) {
-               if (d40c->base->lcla_pool.alloc_map[d40c->phy_chan->num *
-                                                   D40_LCLA_LINK_PER_EVENT_GRP + i] == d40d) {
-                       d40c->base->lcla_pool.alloc_map[d40c->phy_chan->num *
-                                                       D40_LCLA_LINK_PER_EVENT_GRP + i] = NULL;
+               int idx = d40c->phy_chan->num * D40_LCLA_LINK_PER_EVENT_GRP + i;
+
+               if (d40c->base->lcla_pool.alloc_map[idx] == d40d) {
+                       d40c->base->lcla_pool.alloc_map[idx] = NULL;
                        d40d->lcla_alloc--;
                        if (d40d->lcla_alloc == 0) {
                                ret = 0;