[IA64] Avoid overflowing ia64_cpu_to_sapicid in acpi_map_lsapic()

[cascardo/linux.git] / arch / ia64 / kernel / acpi.c

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 19709a0..5d1eb7e 100644 (file)
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -117,7 +117,10 @@ acpi_get_sysname(void)
        if (!strcmp(hdr->oem_id, "HP")) {
                return "hpzx1";
        } else if (!strcmp(hdr->oem_id, "SGI")) {
-               return "sn2";
+               if (!strcmp(hdr->oem_table_id + 4, "UV"))
+                       return "uv";
+               else
+                       return "sn2";
        }
 
        return "dig";
@@ -130,6 +133,8 @@ acpi_get_sysname(void)
        return "hpzx1_swiotlb";
 # elif defined (CONFIG_IA64_SGI_SN2)
        return "sn2";
+# elif defined (CONFIG_IA64_SGI_UV)
+       return "uv";
 # elif defined (CONFIG_IA64_DIG)
        return "dig";
 # else
@@ -460,7 +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;
@@ -569,8 +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))
@@ -622,6 +632,9 @@ void acpi_unregister_gsi(u32 gsi)
        if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
                return;
 
+       if (has_8259 && gsi < 16)
+               return;
+
        iosapic_unregister_intr(gsi);
 }
 
@@ -761,7 +774,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 static
-int acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
+int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 {
 #ifdef CONFIG_ACPI_NUMA
        int pxm_id;
@@ -841,8 +854,7 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
        union acpi_object *obj;
        struct acpi_madt_local_sapic *lsapic;
        cpumask_t tmp_map;
-       long physid;
-       int cpu;
+       int cpu, physid;
 
        if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
                return -EINVAL;