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path: root/drivers/pci/probe.c
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Diffstat (limited to 'drivers/pci/probe.c')
-rw-r--r--drivers/pci/probe.c50
1 files changed, 4 insertions, 46 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index cd6fcd848853..79177ac37880 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -19,7 +19,6 @@
#include <linux/hypervisor.h>
#include <linux/irqdomain.h>
#include <linux/pm_runtime.h>
-#include <linux/list_sort.h>
#include "pci.h"
#define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */
@@ -875,31 +874,14 @@ static void pci_set_bus_msi_domain(struct pci_bus *bus)
dev_set_msi_domain(&bus->dev, d);
}
-static int res_cmp(void *priv, const struct list_head *a,
- const struct list_head *b)
-{
- struct resource_entry *entry1, *entry2;
-
- entry1 = container_of(a, struct resource_entry, node);
- entry2 = container_of(b, struct resource_entry, node);
-
- if (entry1->res->flags != entry2->res->flags)
- return entry1->res->flags > entry2->res->flags;
-
- if (entry1->offset != entry2->offset)
- return entry1->offset > entry2->offset;
-
- return entry1->res->start > entry2->res->start;
-}
-
static int pci_register_host_bridge(struct pci_host_bridge *bridge)
{
struct device *parent = bridge->dev.parent;
- struct resource_entry *window, *next, *n;
+ struct resource_entry *window, *n;
struct pci_bus *bus, *b;
- resource_size_t offset, next_offset;
+ resource_size_t offset;
LIST_HEAD(resources);
- struct resource *res, *next_res;
+ struct resource *res;
char addr[64], *fmt;
const char *name;
int err;
@@ -979,35 +961,11 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
if (nr_node_ids > 1 && pcibus_to_node(bus) == NUMA_NO_NODE)
dev_warn(&bus->dev, "Unknown NUMA node; performance will be reduced\n");
- /* Sort and coalesce contiguous windows */
- list_sort(NULL, &resources, res_cmp);
- resource_list_for_each_entry_safe(window, n, &resources) {
- if (list_is_last(&window->node, &resources))
- break;
-
- next = list_next_entry(window, node);
- offset = window->offset;
- res = window->res;
- next_offset = next->offset;
- next_res = next->res;
-
- if (res->flags != next_res->flags || offset != next_offset)
- continue;
-
- if (res->end + 1 == next_res->start) {
- next_res->start = res->start;
- res->flags = res->start = res->end = 0;
- }
- }
-
/* Add initial resources to the bus */
resource_list_for_each_entry_safe(window, n, &resources) {
+ list_move_tail(&window->node, &bridge->windows);
offset = window->offset;
res = window->res;
- if (!res->end)
- continue;
-
- list_move_tail(&window->node, &bridge->windows);
if (res->flags & IORESOURCE_BUS)
pci_bus_insert_busn_res(bus, bus->number, res->end);