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Diffstat (limited to 'arch/x86/kernel/setup.c')
-rw-r--r--arch/x86/kernel/setup.c27
1 files changed, 12 insertions, 15 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index f8ec57815c05..f0de6294b955 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -206,9 +206,9 @@ EXPORT_SYMBOL(boot_cpu_data);
#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
-unsigned long mmu_cr4_features;
+__visible unsigned long mmu_cr4_features;
#else
-unsigned long mmu_cr4_features = X86_CR4_PAE;
+__visible unsigned long mmu_cr4_features = X86_CR4_PAE;
#endif
/* Boot loader ID and version as integers, for the benefit of proc_dointvec */
@@ -426,25 +426,23 @@ static void __init reserve_initrd(void)
static void __init parse_setup_data(void)
{
struct setup_data *data;
- u64 pa_data;
+ u64 pa_data, pa_next;
pa_data = boot_params.hdr.setup_data;
while (pa_data) {
- u32 data_len, map_len;
+ u32 data_len, map_len, data_type;
map_len = max(PAGE_SIZE - (pa_data & ~PAGE_MASK),
(u64)sizeof(struct setup_data));
data = early_memremap(pa_data, map_len);
data_len = data->len + sizeof(struct setup_data);
- if (data_len > map_len) {
- early_iounmap(data, map_len);
- data = early_memremap(pa_data, data_len);
- map_len = data_len;
- }
+ data_type = data->type;
+ pa_next = data->next;
+ early_iounmap(data, map_len);
- switch (data->type) {
+ switch (data_type) {
case SETUP_E820_EXT:
- parse_e820_ext(data);
+ parse_e820_ext(pa_data, data_len);
break;
case SETUP_DTB:
add_dtb(pa_data);
@@ -452,8 +450,7 @@ static void __init parse_setup_data(void)
default:
break;
}
- pa_data = data->next;
- early_iounmap(data, map_len);
+ pa_data = pa_next;
}
}
@@ -1070,7 +1067,7 @@ void __init setup_arch(char **cmdline_p)
cleanup_highmap();
- memblock.current_limit = ISA_END_ADDRESS;
+ memblock_set_current_limit(ISA_END_ADDRESS);
memblock_x86_fill();
/*
@@ -1103,7 +1100,7 @@ void __init setup_arch(char **cmdline_p)
setup_real_mode();
- memblock.current_limit = get_max_mapped();
+ memblock_set_current_limit(get_max_mapped());
dma_contiguous_reserve(0);
/*
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