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Message-ID: <20080201170009.GA1799@elte.hu>
Date: Fri, 1 Feb 2008 18:00:09 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Subject: [git pull] x86 updates
Linus, please pull the latest x86 git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
Fixes and debug patches only. Thanks,
Ingo
------------------>
Alexander van Heukelum (1):
x86: avoid section mismatch involving arch_register_cpu
Harvey Harrison (3):
x86: make early_console static in early_printk.c
x86: fix sparse warnings in cpu/common.c
x86: fixes for lookup_address args
Sam Ravnborg (4):
x86: silence section mismatch warning in smpboot_64.c
x86: fix section mismatch warnings when referencing notifiers
x86: fix section mismatch warning in acpi/boot.c
x86: fix section mismatch warning in kernel/pci-calgary
Yinghai Lu (4):
x86_64: add debug name for early_res
x86_64: make bootmap_start page align v6
x86: fix comments in vmlinux_64.lds
x86: remove unneeded round_up
arch/x86/boot/compressed/vmlinux_64.lds | 2 +-
arch/x86/kernel/acpi/boot.c | 8 ++++++-
arch/x86/kernel/cpu/common.c | 20 +++++++++---------
arch/x86/kernel/cpuid.c | 2 +-
arch/x86/kernel/e820_64.c | 23 +++++++++++++-------
arch/x86/kernel/early_printk.c | 2 +-
arch/x86/kernel/efi_64.c | 2 +-
arch/x86/kernel/head64.c | 6 ++--
arch/x86/kernel/microcode.c | 2 +-
arch/x86/kernel/msr.c | 2 +-
arch/x86/kernel/pci-calgary_64.c | 4 +-
arch/x86/kernel/setup_64.c | 3 +-
arch/x86/kernel/smpboot_64.c | 2 +-
arch/x86/kernel/topology.c | 3 +-
arch/x86/mm/fault.c | 2 +-
arch/x86/mm/init_64.c | 13 +++--------
arch/x86/mm/ioremap.c | 3 +-
arch/x86/mm/numa_64.c | 34 +++++++++++++++++-------------
arch/x86/mm/pageattr-test.c | 4 +-
include/asm-x86/cpu.h | 3 +-
include/asm-x86/e820_64.h | 4 +-
21 files changed, 79 insertions(+), 65 deletions(-)
diff --git a/arch/x86/boot/compressed/vmlinux_64.lds b/arch/x86/boot/compressed/vmlinux_64.lds
index f6e5b44..7e5c720 100644
--- a/arch/x86/boot/compressed/vmlinux_64.lds
+++ b/arch/x86/boot/compressed/vmlinux_64.lds
@@ -3,7 +3,7 @@ OUTPUT_ARCH(i386:x86-64)
ENTRY(startup_64)
SECTIONS
{
- /* Be careful parts of head_64.S assume startup_64 is at
+ /* Be careful parts of head_64.S assume startup_32 is at
* address 0.
*/
. = 0;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 0ca27c7..d2a5843 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -496,7 +496,8 @@ EXPORT_SYMBOL(acpi_register_gsi);
* ACPI based hotplug support for CPU
*/
#ifdef CONFIG_ACPI_HOTPLUG_CPU
-int acpi_map_lsapic(acpi_handle handle, int *pcpu)
+
+static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
@@ -551,6 +552,11 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
return 0;
}
+/* wrapper to silence section mismatch warning */
+int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu)
+{
+ return _acpi_map_lsapic(handle, pcpu);
+}
EXPORT_SYMBOL(acpi_map_lsapic);
int acpi_unmap_lsapic(int cpu)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index d608c9e..b7b2142 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -258,10 +258,10 @@ static int __cpuinit have_cpuid_p(void)
void __init cpu_detect(struct cpuinfo_x86 *c)
{
/* Get vendor name */
- cpuid(0x00000000, &c->cpuid_level,
- (int *)&c->x86_vendor_id[0],
- (int *)&c->x86_vendor_id[8],
- (int *)&c->x86_vendor_id[4]);
+ cpuid(0x00000000, (unsigned int *)&c->cpuid_level,
+ (unsigned int *)&c->x86_vendor_id[0],
+ (unsigned int *)&c->x86_vendor_id[8],
+ (unsigned int *)&c->x86_vendor_id[4]);
c->x86 = 4;
if (c->cpuid_level >= 0x00000001) {
@@ -283,7 +283,7 @@ void __init cpu_detect(struct cpuinfo_x86 *c)
static void __cpuinit early_get_cap(struct cpuinfo_x86 *c)
{
u32 tfms, xlvl;
- int ebx;
+ unsigned int ebx;
memset(&c->x86_capability, 0, sizeof c->x86_capability);
if (have_cpuid_p()) {
@@ -343,14 +343,14 @@ static void __init early_cpu_detect(void)
static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
{
u32 tfms, xlvl;
- int ebx;
+ unsigned int ebx;
if (have_cpuid_p()) {
/* Get vendor name */
- cpuid(0x00000000, &c->cpuid_level,
- (int *)&c->x86_vendor_id[0],
- (int *)&c->x86_vendor_id[8],
- (int *)&c->x86_vendor_id[4]);
+ cpuid(0x00000000, (unsigned int *)&c->cpuid_level,
+ (unsigned int *)&c->x86_vendor_id[0],
+ (unsigned int *)&c->x86_vendor_id[8],
+ (unsigned int *)&c->x86_vendor_id[4]);
get_cpu_vendor(c, 0);
/* Initialize the standard set of capabilities */
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index dec66e4..a63432d 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -170,7 +170,7 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
return err ? NOTIFY_BAD : NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier =
+static struct notifier_block __refdata cpuid_class_cpu_notifier =
{
.notifier_call = cpuid_class_cpu_callback,
};
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index c617174..9f65b4c 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -54,30 +54,33 @@ static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
struct early_res {
unsigned long start, end;
+ char name[16];
};
static struct early_res early_res[MAX_EARLY_RES] __initdata = {
- { 0, PAGE_SIZE }, /* BIOS data page */
+ { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */
#ifdef CONFIG_SMP
- { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE },
+ { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE, "SMP_TRAMPOLINE" },
#endif
{}
};
-void __init reserve_early(unsigned long start, unsigned long end)
+void __init reserve_early(unsigned long start, unsigned long end, char *name)
{
int i;
struct early_res *r;
for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
r = &early_res[i];
if (end > r->start && start < r->end)
- panic("Overlapping early reservations %lx-%lx to %lx-%lx\n",
- start, end, r->start, r->end);
+ panic("Overlapping early reservations %lx-%lx %s to %lx-%lx %s\n",
+ start, end - 1, name?name:"", r->start, r->end - 1, r->name);
}
if (i >= MAX_EARLY_RES)
panic("Too many early reservations");
r = &early_res[i];
r->start = start;
r->end = end;
+ if (name)
+ strncpy(r->name, name, sizeof(r->name) - 1);
}
void __init early_res_to_bootmem(void)
@@ -85,6 +88,8 @@ void __init early_res_to_bootmem(void)
int i;
for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
struct early_res *r = &early_res[i];
+ printk(KERN_INFO "early res: %d [%lx-%lx] %s\n", i,
+ r->start, r->end - 1, r->name);
reserve_bootmem_generic(r->start, r->end - r->start);
}
}
@@ -166,12 +171,13 @@ int __init e820_all_mapped(unsigned long start, unsigned long end,
}
/*
- * Find a free area in a specific range.
+ * Find a free area with specified alignment in a specific range.
*/
unsigned long __init find_e820_area(unsigned long start, unsigned long end,
- unsigned size)
+ unsigned size, unsigned long align)
{
int i;
+ unsigned long mask = ~(align - 1);
for (i = 0; i < e820.nr_map; i++) {
struct e820entry *ei = &e820.map[i];
@@ -185,7 +191,8 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end,
continue;
while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size)
;
- last = PAGE_ALIGN(addr) + size;
+ addr = (addr + align - 1) & mask;
+ last = addr + size;
if (last > ei->addr + ei->size)
continue;
if (last > end)
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index b7d6c23..cff84cd 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -193,7 +193,7 @@ static struct console simnow_console = {
};
/* Direct interface for emergencies */
-struct console *early_console = &early_vga_console;
+static struct console *early_console = &early_vga_console;
static int early_console_initialized = 0;
void early_printk(const char *fmt, ...)
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 4b73992..674f237 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -44,7 +44,7 @@ static void __init early_mapping_set_exec(unsigned long start,
int executable)
{
pte_t *kpte;
- int level;
+ unsigned int level;
while (start < end) {
kpte = lookup_address((unsigned long)__va(start), &level);
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index a317336..24dbf56 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -75,7 +75,7 @@ static __init void reserve_ebda(void)
if (ebda_size > 64*1024)
ebda_size = 64*1024;
- reserve_early(ebda_addr, ebda_addr + ebda_size);
+ reserve_early(ebda_addr, ebda_addr + ebda_size, "EBDA");
}
void __init x86_64_start_kernel(char * real_mode_data)
@@ -105,14 +105,14 @@ void __init x86_64_start_kernel(char * real_mode_data)
pda_init(0);
copy_bootdata(__va(real_mode_data));
- reserve_early(__pa_symbol(&_text), __pa_symbol(&_end));
+ reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
/* Reserve INITRD */
if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
- reserve_early(ramdisk_image, ramdisk_end);
+ reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
}
reserve_ebda();
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 6ff447f..f2702d0 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -797,7 +797,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
return NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata mc_cpu_notifier = {
+static struct notifier_block __refdata mc_cpu_notifier = {
.notifier_call = mc_cpu_callback,
};
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 21f6e3c..bd82850 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -168,7 +168,7 @@ static int __cpuinit msr_class_cpu_callback(struct notifier_block *nfb,
return err ? NOTIFY_BAD : NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata msr_class_cpu_notifier = {
+static struct notifier_block __refdata msr_class_cpu_notifier = {
.notifier_call = msr_class_cpu_callback,
};
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 21f34db..1fe7f04 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1006,7 +1006,7 @@ static void __init calgary_set_split_completion_timeout(void __iomem *bbar,
readq(target); /* flush */
}
-static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
+static void __init calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
{
unsigned char busnum = dev->bus->number;
void __iomem *bbar = tbl->bbar;
@@ -1022,7 +1022,7 @@ static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
writel(cpu_to_be32(val), target);
}
-static void calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
+static void __init calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
{
unsigned char busnum = dev->bus->number;
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 77fb87b..18df70c 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -182,7 +182,8 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
unsigned long bootmap_size, bootmap;
bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
- bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);
+ bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
+ PAGE_SIZE);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index cc64b80..d53bd6f 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -1019,7 +1019,7 @@ static void remove_siblinginfo(int cpu)
cpu_clear(cpu, cpu_sibling_setup_map);
}
-void remove_cpu_from_maps(void)
+static void __ref remove_cpu_from_maps(void)
{
int cpu = smp_processor_id();
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 78cbb65..e6757aa 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -57,11 +57,10 @@ void arch_unregister_cpu(int num)
}
EXPORT_SYMBOL(arch_unregister_cpu);
#else
-int arch_register_cpu(int num)
+static int __init arch_register_cpu(int num)
{
return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
}
-EXPORT_SYMBOL(arch_register_cpu);
#endif /*CONFIG_HOTPLUG_CPU*/
static int __init topology_init(void)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index e28cc52..e4440d0 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -382,7 +382,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
#ifdef CONFIG_X86_PAE
if (error_code & PF_INSTR) {
- int level;
+ unsigned int level;
pte_t *pte = lookup_address(address, &level);
if (pte && pte_present(*pte) && !pte_exec(*pte))
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index cc50a13..eabcaed 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -354,17 +354,10 @@ static void __init find_early_table_space(unsigned long end)
* need roughly 0.5KB per GB.
*/
start = 0x8000;
- table_start = find_e820_area(start, end, tables);
+ table_start = find_e820_area(start, end, tables, PAGE_SIZE);
if (table_start == -1UL)
panic("Cannot find space for the kernel page tables");
- /*
- * When you have a lot of RAM like 256GB, early_table will not fit
- * into 0x8000 range, find_e820_area() will find area after kernel
- * bss but the table_start is not page aligned, so need to round it
- * up to avoid overlap with bss:
- */
- table_start = round_up(table_start, PAGE_SIZE);
table_start >>= PAGE_SHIFT;
table_end = table_start;
@@ -420,7 +413,9 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
mmu_cr4_features = read_cr4();
__flush_tlb_all();
- reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT);
+ if (!after_bootmem)
+ reserve_early(table_start << PAGE_SHIFT,
+ table_end << PAGE_SHIFT, "PGTABLE");
}
#ifndef CONFIG_NUMA
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index a177d76..c004d94 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -75,7 +75,8 @@ static int ioremap_change_attr(unsigned long paddr, unsigned long size,
{
unsigned long vaddr = (unsigned long)__va(paddr);
unsigned long nrpages = size >> PAGE_SHIFT;
- int err, level;
+ unsigned int level;
+ int err;
/* No change for pages after the last mapping */
if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT))
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index dc3b1f7..a920d09 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -84,26 +84,24 @@ static int __init populate_memnodemap(const struct bootnode *nodes,
static int __init allocate_cachealigned_memnodemap(void)
{
- unsigned long pad, pad_addr;
+ unsigned long addr;
memnodemap = memnode.embedded_map;
if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map))
return 0;
- pad = L1_CACHE_BYTES - 1;
- pad_addr = 0x8000;
- nodemap_size = pad + sizeof(s16) * memnodemapsize;
- nodemap_addr = find_e820_area(pad_addr, end_pfn<<PAGE_SHIFT,
- nodemap_size);
+ addr = 0x8000;
+ nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
+ nodemap_addr = find_e820_area(addr, end_pfn<<PAGE_SHIFT,
+ nodemap_size, L1_CACHE_BYTES);
if (nodemap_addr == -1UL) {
printk(KERN_ERR
"NUMA: Unable to allocate Memory to Node hash map\n");
nodemap_addr = nodemap_size = 0;
return -1;
}
- pad_addr = (nodemap_addr + pad) & ~pad;
- memnodemap = phys_to_virt(pad_addr);
- reserve_early(nodemap_addr, nodemap_addr + nodemap_size);
+ memnodemap = phys_to_virt(nodemap_addr);
+ reserve_early(nodemap_addr, nodemap_addr + nodemap_size, "MEMNODEMAP");
printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n",
nodemap_addr, nodemap_addr + nodemap_size);
@@ -164,15 +162,16 @@ int early_pfn_to_nid(unsigned long pfn)
}
static void * __init early_node_mem(int nodeid, unsigned long start,
- unsigned long end, unsigned long size)
+ unsigned long end, unsigned long size,
+ unsigned long align)
{
- unsigned long mem = find_e820_area(start, end, size);
+ unsigned long mem = find_e820_area(start, end, size, align);
void *ptr;
if (mem != -1L)
return __va(mem);
- ptr = __alloc_bootmem_nopanic(size,
- SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS));
+
+ ptr = __alloc_bootmem_nopanic(size, align, __pa(MAX_DMA_ADDRESS));
if (ptr == NULL) {
printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
size, nodeid);
@@ -198,7 +197,8 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
start_pfn = start >> PAGE_SHIFT;
end_pfn = end >> PAGE_SHIFT;
- node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size);
+ node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size,
+ SMP_CACHE_BYTES);
if (node_data[nodeid] == NULL)
return;
nodedata_phys = __pa(node_data[nodeid]);
@@ -211,8 +211,12 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
/* Find a place for the bootmem map */
bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
+ /*
+ * SMP_CAHCE_BYTES could be enough, but init_bootmem_node like
+ * to use that to align to PAGE_SIZE
+ */
bootmap = early_node_mem(nodeid, bootmap_start, end,
- bootmap_pages<<PAGE_SHIFT);
+ bootmap_pages<<PAGE_SHIFT, PAGE_SIZE);
if (bootmap == NULL) {
if (nodedata_phys < start || nodedata_phys >= end)
free_bootmem((unsigned long)node_data[nodeid],
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 06353d4..7573e78 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -42,7 +42,7 @@ static __init int print_split(struct split_state *s)
s->max_exec = 0;
for (i = 0; i < max_pfn_mapped; ) {
unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT);
- int level;
+ unsigned int level;
pte_t *pte;
pte = lookup_address(addr, &level);
@@ -106,7 +106,7 @@ static __init int exercise_pageattr(void)
unsigned long *bm;
pte_t *pte, pte0;
int failed = 0;
- int level;
+ unsigned int level;
int i, k;
int err;
diff --git a/include/asm-x86/cpu.h b/include/asm-x86/cpu.h
index 85ece5f..73f2ea8 100644
--- a/include/asm-x86/cpu.h
+++ b/include/asm-x86/cpu.h
@@ -10,8 +10,9 @@
struct x86_cpu {
struct cpu cpu;
};
-extern int arch_register_cpu(int num);
+
#ifdef CONFIG_HOTPLUG_CPU
+extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
#endif
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 51e4170..a560c4f 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -15,7 +15,7 @@
#ifndef __ASSEMBLY__
extern unsigned long find_e820_area(unsigned long start, unsigned long end,
- unsigned size);
+ unsigned size, unsigned long align);
extern void add_memory_region(unsigned long start, unsigned long size,
int type);
extern void setup_memory_region(void);
@@ -41,7 +41,7 @@ extern void finish_e820_parsing(void);
extern struct e820map e820;
extern void update_e820(void);
-extern void reserve_early(unsigned long start, unsigned long end);
+extern void reserve_early(unsigned long start, unsigned long end, char *name);
extern void early_res_to_bootmem(void);
#endif/*!__ASSEMBLY__*/
--
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