PNP: factor pnp_init_resource_table() and pnp_clean_resource_table()

Move the common part of pnp_init_resource_table() and
pnp_clean_resource_table() into a new pnp_init_resource().
This reduces a little code duplication and will be
useful later to initialize an individual resource.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 54 insertions, 46 deletions

diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 0c5cb1d58c6c..eb43fc6bff11 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -18,3 +18,5 @@ int pnp_check_irq(struct pnp_dev * dev, int idx);
 int pnp_check_dma(struct pnp_dev * dev, int idx);
 
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
+
+void pnp_init_resource(struct resource *res);
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index d407c07b5b9d..8267efd679a1 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -234,42 +234,52 @@ static void pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
         dev_dbg(&dev->dev, "  disable dma %d\n", idx);
 }
 
+void pnp_init_resource(struct resource *res)
+{
+        unsigned long type;
+
+        type = res->flags & (IORESOURCE_IO  | IORESOURCE_MEM |
+                             IORESOURCE_IRQ | IORESOURCE_DMA);
+
+        res->name = NULL;
+        res->flags = type | IORESOURCE_AUTO | IORESOURCE_UNSET;
+        if (type == IORESOURCE_IRQ || type == IORESOURCE_DMA) {
+                res->start = -1;
+                res->end = -1;
+        } else {
+                res->start = 0;
+                res->end = 0;
+        }
+}
+
 /**
  * pnp_init_resources - Resets a resource table to default values.
  * @table: pointer to the desired resource table
  */
 void pnp_init_resources(struct pnp_dev *dev)
 {
-        struct pnp_resource_table *table = &dev->res;
+        struct resource *res;
         int idx;
 
         for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
-                table->irq_resource[idx].name = NULL;
-                table->irq_resource[idx].start = -1;
-                table->irq_resource[idx].end = -1;
-                table->irq_resource[idx].flags =
-                    IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.irq_resource[idx];
+                res->flags = IORESOURCE_IRQ;
+                pnp_init_resource(res);
         }
         for (idx = 0; idx < PNP_MAX_DMA; idx++) {
-                table->dma_resource[idx].name = NULL;
-                table->dma_resource[idx].start = -1;
-                table->dma_resource[idx].end = -1;
-                table->dma_resource[idx].flags =
-                    IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.dma_resource[idx];
+                res->flags = IORESOURCE_DMA;
+                pnp_init_resource(res);
         }
         for (idx = 0; idx < PNP_MAX_PORT; idx++) {
-                table->port_resource[idx].name = NULL;
-                table->port_resource[idx].start = 0;
-                table->port_resource[idx].end = 0;
-                table->port_resource[idx].flags =
-                    IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.port_resource[idx];
+                res->flags = IORESOURCE_IO;
+                pnp_init_resource(res);
         }
         for (idx = 0; idx < PNP_MAX_MEM; idx++) {
-                table->mem_resource[idx].name = NULL;
-                table->mem_resource[idx].start = 0;
-                table->mem_resource[idx].end = 0;
-                table->mem_resource[idx].flags =
-                    IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.mem_resource[idx];
+                res->flags = IORESOURCE_MEM;
+                pnp_init_resource(res);
         }
 }
 
@@ -279,40 +289,36 @@ void pnp_init_resources(struct pnp_dev *dev)
  */
 static void pnp_clean_resource_table(struct pnp_dev *dev)
 {
-        struct pnp_resource_table *res = &dev->res;
+        struct resource *res;
         int idx;
 
         for (idx = 0; idx < PNP_MAX_IRQ; idx++) {
-                if (!(res->irq_resource[idx].flags & IORESOURCE_AUTO))
-                        continue;
-                res->irq_resource[idx].start = -1;
-                res->irq_resource[idx].end = -1;
-                res->irq_resource[idx].flags =
-                    IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.irq_resource[idx];
+                if (res->flags & IORESOURCE_AUTO) {
+                        res->flags = IORESOURCE_IRQ;
+                        pnp_init_resource(res);
+                }
         }
         for (idx = 0; idx < PNP_MAX_DMA; idx++) {
-                if (!(res->dma_resource[idx].flags & IORESOURCE_AUTO))
-                        continue;
-                res->dma_resource[idx].start = -1;
-                res->dma_resource[idx].end = -1;
-                res->dma_resource[idx].flags =
-                    IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.dma_resource[idx];
+                if (res->flags & IORESOURCE_AUTO) {
+                        res->flags = IORESOURCE_DMA;
+                        pnp_init_resource(res);
+                }
         }
         for (idx = 0; idx < PNP_MAX_PORT; idx++) {
-                if (!(res->port_resource[idx].flags & IORESOURCE_AUTO))
-                        continue;
-                res->port_resource[idx].start = 0;
-                res->port_resource[idx].end = 0;
-                res->port_resource[idx].flags =
-                    IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.port_resource[idx];
+                if (res->flags & IORESOURCE_AUTO) {
+                        res->flags = IORESOURCE_IO;
+                        pnp_init_resource(res);
+                }
         }
         for (idx = 0; idx < PNP_MAX_MEM; idx++) {
-                if (!(res->mem_resource[idx].flags & IORESOURCE_AUTO))
-                        continue;
-                res->mem_resource[idx].start = 0;
-                res->mem_resource[idx].end = 0;
-                res->mem_resource[idx].flags =
-                    IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
+                res = &dev->res.mem_resource[idx];
+                if (res->flags & IORESOURCE_AUTO) {
+                        res->flags = IORESOURCE_MEM;
+                        pnp_init_resource(res);
+                }
         }
 }