Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86/efi changes from Peter Anvin:
 "The bulk of these changes are cleaning up the efivars handling and
  breaking it up into a tree of files.  There are a number of fixes as
  well.

  The entire changeset is pretty big, but most of it is code movement.

  Several of these commits are quite new; the history got very messed up
  due to a mismerge with the urgent changes for rc8 which completely
  broke IA64, and so Ingo requested that we rebase it to straighten it
  out."

* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: remove "kfree(NULL)"
  efi: locking fix in efivar_entry_set_safe()
  efi, pstore: Read data from variable store before memcpy()
  efi, pstore: Remove entry from list when erasing
  efi, pstore: Initialise 'entry' before iterating
  efi: split efisubsystem from efivars
  efivarfs: Move to fs/efivarfs
  efivars: Move pstore code into the new EFI directory
  efivars: efivar_entry API
  efivars: Keep a private global pointer to efivars
  efi: move utf16 string functions to efi.h
  x86, efi: Make efi_memblock_x86_reserve_range more readable
  efivarfs: convert to use simple_open()

1 files changed, 10 insertions, 9 deletions

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index b55d174e5034..6b85db0a7ccc 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -453,24 +453,25 @@ static void __init do_add_efi_memmap(void)
 
 int __init efi_memblock_x86_reserve_range(void)
 {
+        struct efi_info *e = &boot_params.efi_info;
         unsigned long pmap;
 
 #ifdef CONFIG_X86_32
         /* Can't handle data above 4GB at this time */
-        if (boot_params.efi_info.efi_memmap_hi) {
+        if (e->efi_memmap_hi) {
                 pr_err("Memory map is above 4GB, disabling EFI.\n");
                 return -EINVAL;
         }
-        pmap = boot_params.efi_info.efi_memmap;
+        pmap =  e->efi_memmap;
 #else
-        pmap = (boot_params.efi_info.efi_memmap |
-                ((__u64)boot_params.efi_info.efi_memmap_hi<<32));
+        pmap = (e->efi_memmap | ((__u64)e->efi_memmap_hi << 32));
 #endif
-        memmap.phys_map = (void *)pmap;
-        memmap.nr_map = boot_params.efi_info.efi_memmap_size /
-                boot_params.efi_info.efi_memdesc_size;
-        memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
-        memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
+        memmap.phys_map         = (void *)pmap;
+        memmap.nr_map           = e->efi_memmap_size /
+                                  e->efi_memdesc_size;
+        memmap.desc_size        = e->efi_memdesc_size;
+        memmap.desc_version     = e->efi_memdesc_version;
+
         memblock_reserve(pmap, memmap.nr_map * memmap.desc_size);
 
         return 0;