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Subject[PATCH 13/36] x86, PCI: allocate temp range array in amd_bus pci_root_info probing
Date
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/pci/amd_bus.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index 5f30a98..aff155d 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -30,7 +30,7 @@ static struct pci_hostbridge_probe pci_probes[] __initdata = {
{ 0, 0x18, PCI_VENDOR_ID_AMD, 0x1300 },
};

-#define RANGE_NUM 16
+#define RANGE_NUM 128

static struct pci_root_info __init *find_pci_root_info(int node, int link)
{
@@ -64,7 +64,7 @@ static int __init early_fill_mp_bus_info(void)
u32 reg;
u64 start;
u64 end;
- struct range range[RANGE_NUM];
+ struct range *range;
u64 val;
u32 address;
bool found;
@@ -125,7 +125,10 @@ static int __init early_fill_mp_bus_info(void)
reg = read_pci_config(bus, slot, 0, 0x64);
def_link = (reg >> 8) & 0x03;

- memset(range, 0, sizeof(range));
+ range = kcalloc(RANGE_NUM, sizeof(struct range), GFP_KERNEL);
+ if (!range)
+ return -ENOMEM;
+
add_range(range, RANGE_NUM, 0, 0, 0xffff + 1);
/* io port resource */
for (i = 0; i < 4; i++) {
@@ -291,6 +294,8 @@ static int __init early_fill_mp_bus_info(void)
}
}

+ kfree(range);
+
print_all_pci_root_info("ht link", true);

return 0;
--
1.7.7


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