@@ -104,19 +104,9 @@ static struct pci_dev_resource *res_to_dev_res(struct list_head *head,
{
struct pci_dev_resource *dev_res;
- list_for_each_entry(dev_res, head, list) {
- if (dev_res->res == res) {
- int idx = res - &dev_res->dev->resource[0];
-
- dev_printk(KERN_DEBUG, &dev_res->dev->dev,
- "res[%d]=%pR res_to_dev_res add_size %llx min_align %llx\n",
- idx, dev_res->res,
- (unsigned long long)dev_res->add_size,
- (unsigned long long)dev_res->min_align);
-
+ list_for_each_entry(dev_res, head, list)
+ if (dev_res->res == res)
return dev_res;
- }
- }
return NULL;
}
@@ -127,7 +117,15 @@ static resource_size_t get_res_add_size(struct list_head *head,
struct pci_dev_resource *dev_res;
dev_res = res_to_dev_res(head, res);
- return dev_res ? dev_res->add_size : 0;
+ if (!dev_res || !dev_res->add_size)
+ return 0;
+
+ dev_printk(KERN_DEBUG, &dev_res->dev->dev,
+ "BAR %d: %pR get_res_add_size add_size %#llx\n",
+ (int)(res - &dev_res->dev->resource[0]),
+ res, (unsigned long long)dev_res->add_size);
+
+ return dev_res->add_size;
}
static resource_size_t get_res_add_align(struct list_head *head,
@@ -136,7 +134,15 @@ static resource_size_t get_res_add_align(struct list_head *head,
struct pci_dev_resource *dev_res;
dev_res = res_to_dev_res(head, res);
- return dev_res ? dev_res->min_align : 0;
+ if (!dev_res || !dev_res->min_align)
+ return 0;
+
+ dev_printk(KERN_DEBUG, &dev_res->dev->dev,
+ "BAR %d: %pR get_res_add_align min_align %#llx\n",
+ (int)(res - &dev_res->dev->resource[0]),
+ res, (unsigned long long)dev_res->min_align);
+
+ return dev_res->min_align;
}
Now get_res_add_size and get_res_add_align all have same printout from res_to_dev_res(), and it is confusing. Move out debug messages printout from res_to_dev_res(), and later we will reuse res_to_dev_res() in other functions. Signed-off-by: Yinghai Lu <yinghai@kernel.org> --- drivers/pci/setup-bus.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-)