1 files changed, 92 insertions, 108 deletions

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 29f05d4b68c..9197d7b361b 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -55,7 +55,7 @@
 
 #define BAD_MADT_ENTRY(entry, end) (                                        \
 		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
-		((acpi_table_entry_header *)entry)->length < sizeof(*entry))
+		((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 
 #define PREFIX			"ACPI: "
 
@@ -67,16 +67,11 @@ EXPORT_SYMBOL(pm_power_off);
 unsigned int acpi_cpei_override;
 unsigned int acpi_cpei_phys_cpuid;
 
-#define MAX_SAPICS 256
-u16 ia64_acpiid_to_sapicid[MAX_SAPICS] = {[0 ... MAX_SAPICS - 1] = -1 };
-
-EXPORT_SYMBOL(ia64_acpiid_to_sapicid);
-
 const char *acpi_get_sysname(void)
 {
 #ifdef CONFIG_IA64_GENERIC
 	unsigned long rsdp_phys;
-	struct acpi20_table_rsdp *rsdp;
+	struct acpi_table_rsdp *rsdp;
 	struct acpi_table_xsdt *xsdt;
 	struct acpi_table_header *hdr;
 
@@ -87,16 +82,16 @@ const char *acpi_get_sysname(void)
 		return "dig";
 	}
 
-	rsdp = (struct acpi20_table_rsdp *)__va(rsdp_phys);
-	if (strncmp(rsdp->signature, RSDP_SIG, sizeof(RSDP_SIG) - 1)) {
+	rsdp = (struct acpi_table_rsdp *)__va(rsdp_phys);
+	if (strncmp(rsdp->signature, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1)) {
 		printk(KERN_ERR
 		       "ACPI 2.0 RSDP signature incorrect, default to \"dig\"\n");
 		return "dig";
 	}
 
-	xsdt = (struct acpi_table_xsdt *)__va(rsdp->xsdt_address);
+	xsdt = (struct acpi_table_xsdt *)__va(rsdp->xsdt_physical_address);
 	hdr = &xsdt->header;
-	if (strncmp(hdr->signature, XSDT_SIG, sizeof(XSDT_SIG) - 1)) {
+	if (strncmp(hdr->signature, ACPI_SIG_XSDT, sizeof(ACPI_SIG_XSDT) - 1)) {
 		printk(KERN_ERR
 		       "ACPI 2.0 XSDT signature incorrect, default to \"dig\"\n");
 		return "dig";
@@ -169,12 +164,12 @@ struct acpi_table_madt *acpi_madt __initdata;
 static u8 has_8259;
 
 static int __init
-acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header,
+acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header,
 			  const unsigned long end)
 {
-	struct acpi_table_lapic_addr_ovr *lapic;
+	struct acpi_madt_local_apic_override *lapic;
 
-	lapic = (struct acpi_table_lapic_addr_ovr *)header;
+	lapic = (struct acpi_madt_local_apic_override *)header;
 
 	if (BAD_MADT_ENTRY(lapic, end))
 		return -EINVAL;
@@ -187,22 +182,19 @@ acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header,
 }
 
 static int __init
-acpi_parse_lsapic(acpi_table_entry_header * header, const unsigned long end)
+acpi_parse_lsapic(struct acpi_subtable_header * header, const unsigned long end)
 {
-	struct acpi_table_lsapic *lsapic;
+	struct acpi_madt_local_sapic *lsapic;
 
-	lsapic = (struct acpi_table_lsapic *)header;
+	lsapic = (struct acpi_madt_local_sapic *)header;
 
-	if (BAD_MADT_ENTRY(lsapic, end))
-		return -EINVAL;
+	/*Skip BAD_MADT_ENTRY check, as lsapic size could vary */
 
-	if (lsapic->flags.enabled) {
+	if (lsapic->lapic_flags & ACPI_MADT_ENABLED) {
 #ifdef CONFIG_SMP
 		smp_boot_data.cpu_phys_id[available_cpus] =
 		    (lsapic->id << 8) | lsapic->eid;
 #endif
-		ia64_acpiid_to_sapicid[lsapic->acpi_id] =
-		    (lsapic->id << 8) | lsapic->eid;
 		++available_cpus;
 	}
 
@@ -211,11 +203,11 @@ acpi_parse_lsapic(acpi_table_entry_header * header, const unsigned long end)
 }
 
 static int __init
-acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end)
+acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end)
 {
-	struct acpi_table_lapic_nmi *lacpi_nmi;
+	struct acpi_madt_local_apic_nmi *lacpi_nmi;
 
-	lacpi_nmi = (struct acpi_table_lapic_nmi *)header;
+	lacpi_nmi = (struct acpi_madt_local_apic_nmi *)header;
 
 	if (BAD_MADT_ENTRY(lacpi_nmi, end))
 		return -EINVAL;
@@ -225,11 +217,11 @@ acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end)
 }
 
 static int __init
-acpi_parse_iosapic(acpi_table_entry_header * header, const unsigned long end)
+acpi_parse_iosapic(struct acpi_subtable_header * header, const unsigned long end)
 {
-	struct acpi_table_iosapic *iosapic;
+	struct acpi_madt_io_sapic *iosapic;
 
-	iosapic = (struct acpi_table_iosapic *)header;
+	iosapic = (struct acpi_madt_io_sapic *)header;
 
 	if (BAD_MADT_ENTRY(iosapic, end))
 		return -EINVAL;
@@ -240,13 +232,13 @@ acpi_parse_iosapic(acpi_table_entry_header * header, const unsigned long end)
 static unsigned int __initdata acpi_madt_rev;
 
 static int __init
-acpi_parse_plat_int_src(acpi_table_entry_header * header,
+acpi_parse_plat_int_src(struct acpi_subtable_header * header,
 			const unsigned long end)
 {
-	struct acpi_table_plat_int_src *plintsrc;
+	struct acpi_madt_interrupt_source *plintsrc;
 	int vector;
 
-	plintsrc = (struct acpi_table_plat_int_src *)header;
+	plintsrc = (struct acpi_madt_interrupt_source *)header;
 
 	if (BAD_MADT_ENTRY(plintsrc, end))
 		return -EINVAL;
@@ -257,19 +249,19 @@ acpi_parse_plat_int_src(acpi_table_entry_header * header,
 	 */
 	vector = iosapic_register_platform_intr(plintsrc->type,
 						plintsrc->global_irq,
-						plintsrc->iosapic_vector,
+						plintsrc->io_sapic_vector,
 						plintsrc->eid,
 						plintsrc->id,
-						(plintsrc->flags.polarity ==
-						 1) ? IOSAPIC_POL_HIGH :
-						IOSAPIC_POL_LOW,
-						(plintsrc->flags.trigger ==
-						 1) ? IOSAPIC_EDGE :
-						IOSAPIC_LEVEL);
+						((plintsrc->inti_flags & ACPI_MADT_POLARITY_MASK) ==
+						 ACPI_MADT_POLARITY_ACTIVE_HIGH) ?
+						IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
+						((plintsrc->inti_flags & ACPI_MADT_TRIGGER_MASK) ==
+						 ACPI_MADT_TRIGGER_EDGE) ?
+						IOSAPIC_EDGE : IOSAPIC_LEVEL);
 
 	platform_intr_list[plintsrc->type] = vector;
 	if (acpi_madt_rev > 1) {
-		acpi_cpei_override = plintsrc->plint_flags.cpei_override_flag;
+		acpi_cpei_override = plintsrc->flags & ACPI_MADT_CPEI_OVERRIDE;
 	}
 
 	/*
@@ -324,30 +316,32 @@ unsigned int get_cpei_target_cpu(void)
 }
 
 static int __init
-acpi_parse_int_src_ovr(acpi_table_entry_header * header,
+acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
 		       const unsigned long end)
 {
-	struct acpi_table_int_src_ovr *p;
+	struct acpi_madt_interrupt_override *p;
 
-	p = (struct acpi_table_int_src_ovr *)header;
+	p = (struct acpi_madt_interrupt_override *)header;
 
 	if (BAD_MADT_ENTRY(p, end))
 		return -EINVAL;
 
-	iosapic_override_isa_irq(p->bus_irq, p->global_irq,
-				 (p->flags.polarity ==
-				  1) ? IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
-				 (p->flags.trigger ==
-				  1) ? IOSAPIC_EDGE : IOSAPIC_LEVEL);
+	iosapic_override_isa_irq(p->source_irq, p->global_irq,
+				 ((p->inti_flags & ACPI_MADT_POLARITY_MASK) ==
+				  ACPI_MADT_POLARITY_ACTIVE_HIGH) ?
+				 IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
+				 ((p->inti_flags & ACPI_MADT_TRIGGER_MASK) ==
+				 ACPI_MADT_TRIGGER_EDGE) ?
+				 IOSAPIC_EDGE : IOSAPIC_LEVEL);
 	return 0;
 }
 
 static int __init
-acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end)
+acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end)
 {
-	struct acpi_table_nmi_src *nmi_src;
+	struct acpi_madt_nmi_source *nmi_src;
 
-	nmi_src = (struct acpi_table_nmi_src *)header;
+	nmi_src = (struct acpi_madt_nmi_source *)header;
 
 	if (BAD_MADT_ENTRY(nmi_src, end))
 		return -EINVAL;
@@ -371,12 +365,12 @@ static void __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 	}
 }
 
-static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_madt(struct acpi_table_header *table)
 {
-	if (!phys_addr || !size)
+	if (!table)
 		return -EINVAL;
 
-	acpi_madt = (struct acpi_table_madt *)__va(phys_addr);
+	acpi_madt = (struct acpi_table_madt *)table;
 
 	acpi_madt_rev = acpi_madt->header.revision;
 
@@ -384,14 +378,14 @@ static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
 #ifdef CONFIG_ITANIUM
 	has_8259 = 1;		/* Firmware on old Itanium systems is broken */
 #else
-	has_8259 = acpi_madt->flags.pcat_compat;
+	has_8259 = acpi_madt->flags & ACPI_MADT_PCAT_COMPAT;
 #endif
 	iosapic_system_init(has_8259);
 
 	/* Get base address of IPI Message Block */
 
-	if (acpi_madt->lapic_address)
-		ipi_base_addr = ioremap(acpi_madt->lapic_address, 0);
+	if (acpi_madt->address)
+		ipi_base_addr = ioremap(acpi_madt->address, 0);
 
 	printk(KERN_INFO PREFIX "Local APIC address %p\n", ipi_base_addr);
 
@@ -413,23 +407,24 @@ static u32 __devinitdata pxm_flag[PXM_FLAG_LEN];
 #define pxm_bit_test(bit)	(test_bit(bit,(void *)pxm_flag))
 static struct acpi_table_slit __initdata *slit_table;
 
-static int get_processor_proximity_domain(struct acpi_table_processor_affinity *pa)
+static int get_processor_proximity_domain(struct acpi_srat_cpu_affinity *pa)
 {
 	int pxm;
 
-	pxm = pa->proximity_domain;
+	pxm = pa->proximity_domain_lo;
 	if (ia64_platform_is("sn2"))
-		pxm += pa->reserved[0] << 8;
+		pxm += pa->proximity_domain_hi[0] << 8;
 	return pxm;
 }
 
-static int get_memory_proximity_domain(struct acpi_table_memory_affinity *ma)
+static int get_memory_proximity_domain(struct acpi_srat_mem_affinity *ma)
 {
 	int pxm;
 
 	pxm = ma->proximity_domain;
-	if (ia64_platform_is("sn2"))
-		pxm += ma->reserved1[0] << 8;
+	if (!ia64_platform_is("sn2"))
+		pxm &= 0xff;
+
 	return pxm;
 }
 
@@ -442,7 +437,7 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 	u32 len;
 
 	len = sizeof(struct acpi_table_header) + 8
-	    + slit->localities * slit->localities;
+	    + slit->locality_count * slit->locality_count;
 	if (slit->header.length != len) {
 		printk(KERN_ERR
 		       "ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
@@ -454,11 +449,11 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 }
 
 void __init
-acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa)
+acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 {
 	int pxm;
 
-	if (!pa->flags.enabled)
+	if (!(pa->flags & ACPI_SRAT_CPU_ENABLED))
 		return;
 
 	pxm = get_processor_proximity_domain(pa);
@@ -467,14 +462,14 @@ acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa)
 	pxm_bit_set(pxm);
 
 	node_cpuid[srat_num_cpus].phys_id =
-	    (pa->apic_id << 8) | (pa->lsapic_eid);
+	    (pa->apic_id << 8) | (pa->local_sapic_eid);
 	/* nid should be overridden as logical node id later */
 	node_cpuid[srat_num_cpus].nid = pxm;
 	srat_num_cpus++;
 }
 
 void __init
-acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
+acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 {
 	unsigned long paddr, size;
 	int pxm;
@@ -483,13 +478,11 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 	pxm = get_memory_proximity_domain(ma);
 
 	/* fill node memory chunk structure */
-	paddr = ma->base_addr_hi;
-	paddr = (paddr << 32) | ma->base_addr_lo;
-	size = ma->length_hi;
-	size = (size << 32) | ma->length_lo;
+	paddr = ma->base_address;
+	size = ma->length;
 
 	/* Ignore disabled entries */
-	if (!ma->flags.enabled)
+	if (!(ma->flags & ACPI_SRAT_MEM_ENABLED))
 		return;
 
 	/* record this node in proximity bitmap */
@@ -560,16 +553,16 @@ void __init acpi_numa_arch_fixup(void)
 	if (!slit_table)
 		return;
 	memset(numa_slit, -1, sizeof(numa_slit));
-	for (i = 0; i < slit_table->localities; i++) {
+	for (i = 0; i < slit_table->locality_count; i++) {
 		if (!pxm_bit_test(i))
 			continue;
 		node_from = pxm_to_node(i);
-		for (j = 0; j < slit_table->localities; j++) {
+		for (j = 0; j < slit_table->locality_count; j++) {
 			if (!pxm_bit_test(j))
 				continue;
 			node_to = pxm_to_node(j);
 			node_distance(node_from, node_to) =
-			    slit_table->entry[i * slit_table->localities + j];
+			    slit_table->entry[i * slit_table->locality_count + j];
 		}
 	}
 
@@ -617,21 +610,21 @@ void acpi_unregister_gsi(u32 gsi)
 
 EXPORT_SYMBOL(acpi_unregister_gsi);
 
-static int __init acpi_parse_fadt(unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_fadt(struct acpi_table_header *table)
 {
 	struct acpi_table_header *fadt_header;
-	struct fadt_descriptor *fadt;
+	struct acpi_table_fadt *fadt;
 
-	if (!phys_addr || !size)
+	if (!table)
 		return -EINVAL;
 
-	fadt_header = (struct acpi_table_header *)__va(phys_addr);
+	fadt_header = (struct acpi_table_header *)table;
 	if (fadt_header->revision != 3)
 		return -ENODEV;	/* Only deal with ACPI 2.0 FADT */
 
-	fadt = (struct fadt_descriptor *)fadt_header;
+	fadt = (struct acpi_table_fadt *)fadt_header;
 
-	acpi_register_gsi(fadt->sci_int, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
+	acpi_register_gsi(fadt->sci_interrupt, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
 	return 0;
 }
 
@@ -658,7 +651,7 @@ int __init acpi_boot_init(void)
 	 * information -- the successor to MPS tables.
 	 */
 
-	if (acpi_table_parse(ACPI_APIC, acpi_parse_madt) < 1) {
+	if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt) < 1) {
 		printk(KERN_ERR PREFIX "Can't find MADT\n");
 		goto skip_madt;
 	}
@@ -666,40 +659,40 @@ int __init acpi_boot_init(void)
 	/* Local APIC */
 
 	if (acpi_table_parse_madt
-	    (ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0) < 0)
+	    (ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, acpi_parse_lapic_addr_ovr, 0) < 0)
 		printk(KERN_ERR PREFIX
 		       "Error parsing LAPIC address override entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_LSAPIC, acpi_parse_lsapic, NR_CPUS)
+	if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS)
 	    < 1)
 		printk(KERN_ERR PREFIX
 		       "Error parsing MADT - no LAPIC entries\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0)
+	if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
 	    < 0)
 		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
 
 	/* I/O APIC */
 
 	if (acpi_table_parse_madt
-	    (ACPI_MADT_IOSAPIC, acpi_parse_iosapic, NR_IOSAPICS) < 1)
+	    (ACPI_MADT_TYPE_IO_SAPIC, acpi_parse_iosapic, NR_IOSAPICS) < 1)
 		printk(KERN_ERR PREFIX
 		       "Error parsing MADT - no IOSAPIC entries\n");
 
 	/* System-Level Interrupt Routing */
 
 	if (acpi_table_parse_madt
-	    (ACPI_MADT_PLAT_INT_SRC, acpi_parse_plat_int_src,
+	    (ACPI_MADT_TYPE_INTERRUPT_SOURCE, acpi_parse_plat_int_src,
 	     ACPI_MAX_PLATFORM_INTERRUPTS) < 0)
 		printk(KERN_ERR PREFIX
 		       "Error parsing platform interrupt source entry\n");
 
 	if (acpi_table_parse_madt
-	    (ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, 0) < 0)
+	    (ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, acpi_parse_int_src_ovr, 0) < 0)
 		printk(KERN_ERR PREFIX
 		       "Error parsing interrupt source overrides entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, 0) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, acpi_parse_nmi_src, 0) < 0)
 		printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
       skip_madt:
 
@@ -709,7 +702,7 @@ int __init acpi_boot_init(void)
 	 * gets interrupts such as power and sleep buttons.  If it's not
 	 * on a Legacy interrupt, it needs to be setup.
 	 */
-	if (acpi_table_parse(ACPI_FADT, acpi_parse_fadt) < 1)
+	if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt) < 1)
 		printk(KERN_ERR PREFIX "Can't find FADT\n");
 
 #ifdef CONFIG_SMP
@@ -842,7 +835,7 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
-	struct acpi_table_lsapic *lsapic;
+	struct acpi_madt_local_sapic *lsapic;
 	cpumask_t tmp_map;
 	long physid;
 	int cpu;
@@ -854,16 +847,16 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 		return -EINVAL;
 
 	obj = buffer.pointer;
-	if (obj->type != ACPI_TYPE_BUFFER ||
-	    obj->buffer.length < sizeof(*lsapic)) {
+	if (obj->type != ACPI_TYPE_BUFFER)
+	{
 		kfree(buffer.pointer);
 		return -EINVAL;
 	}
 
-	lsapic = (struct acpi_table_lsapic *)obj->buffer.pointer;
+	lsapic = (struct acpi_madt_local_sapic *)obj->buffer.pointer;
 
-	if ((lsapic->header.type != ACPI_MADT_LSAPIC) ||
-	    (!lsapic->flags.enabled)) {
+	if ((lsapic->header.type != ACPI_MADT_TYPE_LOCAL_SAPIC) ||
+	    (!lsapic->lapic_flags & ACPI_MADT_ENABLED)) {
 		kfree(buffer.pointer);
 		return -EINVAL;
 	}
@@ -883,7 +876,6 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 
 	cpu_set(cpu, cpu_present_map);
 	ia64_cpu_to_sapicid[cpu] = physid;
-	ia64_acpiid_to_sapicid[lsapic->acpi_id] = ia64_cpu_to_sapicid[cpu];
 
 	*pcpu = cpu;
 	return (0);
@@ -893,14 +885,6 @@ EXPORT_SYMBOL(acpi_map_lsapic);
 
 int acpi_unmap_lsapic(int cpu)
 {
-	int i;
-
-	for (i = 0; i < MAX_SAPICS; i++) {
-		if (ia64_acpiid_to_sapicid[i] == ia64_cpu_to_sapicid[cpu]) {
-			ia64_acpiid_to_sapicid[i] = -1;
-			break;
-		}
-	}
 	ia64_cpu_to_sapicid[cpu] = -1;
 	cpu_clear(cpu, cpu_present_map);
 
@@ -920,7 +904,7 @@ acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
-	struct acpi_table_iosapic *iosapic;
+	struct acpi_madt_io_sapic *iosapic;
 	unsigned int gsi_base;
 	int pxm, node;
 
@@ -938,9 +922,9 @@ acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
 		return AE_OK;
 	}
 
-	iosapic = (struct acpi_table_iosapic *)obj->buffer.pointer;
+	iosapic = (struct acpi_madt_io_sapic *)obj->buffer.pointer;
 
-	if (iosapic->header.type != ACPI_MADT_IOSAPIC) {
+	if (iosapic->header.type != ACPI_MADT_TYPE_IO_SAPIC) {
 		kfree(buffer.pointer);
 		return AE_OK;
 	}