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authorFenghua Yu <fenghua.yu@intel.com>2008-06-09 16:48:18 -0700
committerLen Brown <len.brown@intel.com>2008-06-11 19:13:46 -0400
commit39b8931b5cad9a7cbcd2394a40a088311e783a82 (patch)
tree4db8369a3d5cc54a61942f38de9eb392e7e5bc60 /arch/ia64
parent36d872a370d3d10e5a7faa9dcacce744260fb13b (diff)
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ACPI: handle invalid ACPI SLIT table
This is a SLIT sanity checking patch. It moves slit_valid() function to generic ACPI code and does sanity checking for both x86 and ia64. It sets up node_distance with LOCAL_DISTANCE and REMOTE_DISTANCE when hitting invalid SLIT table on ia64. It also cleans up unused variable localities in acpi_parse_slit() on x86. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/acpi.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 853d1f11be00..43687cc60dfb 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -465,7 +465,6 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
printk(KERN_ERR
"ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
len, slit->header.length);
- memset(numa_slit, 10, sizeof(numa_slit));
return;
}
slit_table = slit;
@@ -574,8 +573,14 @@ void __init acpi_numa_arch_fixup(void)
printk(KERN_INFO "Number of memory chunks in system = %d\n",
num_node_memblks);
- if (!slit_table)
+ if (!slit_table) {
+ for (i = 0; i < MAX_NUMNODES; i++)
+ for (j = 0; j < MAX_NUMNODES; j++)
+ node_distance(i, j) = i == j ? LOCAL_DISTANCE :
+ REMOTE_DISTANCE;
return;
+ }
+
memset(numa_slit, -1, sizeof(numa_slit));
for (i = 0; i < slit_table->locality_count; i++) {
if (!pxm_bit_test(i))