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authorIngo Molnar <mingo@kernel.org>2012-10-26 10:17:38 +0200
committerIngo Molnar <mingo@kernel.org>2012-10-26 10:17:38 +0200
commit8b724e2a12d553cad8ad412846511c783a92d25e (patch)
treea07e14802a768a7156f70e2f9550ff98fe2b17f1 /arch/x86/platform
parentf82f64dd9f485e13f29f369772d4a0e868e5633a (diff)
parent5189c2a7c7769ee9d037d76c1a7b8550ccf3481c (diff)
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Merge tag 'efi-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming: "Fix oops with EFI variables on mixed 32/64-bit firmware/kernels and document EFI git repository location on kernel.org." Conflicts: arch/x86/include/asm/efi.h Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform')
-rw-r--r--arch/x86/platform/efi/efi.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index cb34839..ad44391 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -70,11 +70,15 @@ EXPORT_SYMBOL(efi);
struct efi_memory_map memmap;
bool efi_64bit;
-static bool efi_native;
static struct efi efi_phys __initdata;
static efi_system_table_t efi_systab __initdata;
+static inline bool efi_is_native(void)
+{
+ return IS_ENABLED(CONFIG_X86_64) == efi_64bit;
+}
+
static int __init setup_noefi(char *arg)
{
efi_enabled = 0;
@@ -420,7 +424,7 @@ void __init efi_reserve_boot_services(void)
}
}
-static void __init efi_unmap_memmap(void)
+void __init efi_unmap_memmap(void)
{
if (memmap.map) {
early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
@@ -432,7 +436,7 @@ void __init efi_free_boot_services(void)
{
void *p;
- if (!efi_native)
+ if (!efi_is_native())
return;
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
@@ -684,12 +688,10 @@ void __init efi_init(void)
return;
}
efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
- efi_native = !efi_64bit;
#else
efi_phys.systab = (efi_system_table_t *)
(boot_params.efi_info.efi_systab |
((__u64)boot_params.efi_info.efi_systab_hi<<32));
- efi_native = efi_64bit;
#endif
if (efi_systab_init(efi_phys.systab)) {
@@ -723,7 +725,7 @@ void __init efi_init(void)
* that doesn't match the kernel 32/64-bit mode.
*/
- if (!efi_native)
+ if (!efi_is_native())
pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
else if (efi_runtime_init()) {
efi_enabled = 0;
@@ -735,7 +737,7 @@ void __init efi_init(void)
return;
}
#ifdef CONFIG_X86_32
- if (efi_native) {
+ if (efi_is_native()) {
x86_platform.get_wallclock = efi_get_time;
x86_platform.set_wallclock = efi_set_rtc_mmss;
}
@@ -844,7 +846,7 @@ void __init efi_enter_virtual_mode(void)
* non-native EFI
*/
- if (!efi_native) {
+ if (!efi_is_native()) {
efi_unmap_memmap();
return;
}