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Subject[patch 26/54] 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>

---
drivers/pnp/base.h | 2 +
drivers/pnp/manager.c | 90 ++++++++++++++++++++++++--------------------------
2 files changed, 46 insertions(+), 46 deletions(-)
Index: work10/drivers/pnp/base.h
===================================================================
--- work10.orig/drivers/pnp/base.h 2008-04-25 11:14:57.000000000 -0600
+++ work10/drivers/pnp/base.h 2008-04-25 11:15:00.000000000 -0600
@@ -18,3 +18,5 @@
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);
Index: work10/drivers/pnp/manager.c
===================================================================
--- work10.orig/drivers/pnp/manager.c 2008-04-25 11:14:59.000000000 -0600
+++ work10/drivers/pnp/manager.c 2008-04-25 11:15:00.000000000 -0600
@@ -234,42 +234,52 @@
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 +289,28 @@
*/
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)
+ 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)
+ 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)
+ 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)
+ pnp_init_resource(res);
}
}

--


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