From: Alex Thorlton <athorl...@sgi.com>

Currently, the efi_thunk macro has some semi-duplicated code in it that
can be replaced with the arch_efi_call_virt_setup/teardown macros. This
commit simply replaces the duplicated code with those macros.

Signed-off-by: Alex Thorlton <athorl...@sgi.com>
Suggested-by: Matt Fleming <m...@codeblueprint.co.uk>
Cc: Russ Anderson <r...@sgi.com>
Cc: Dimitri Sivanich <sivan...@sgi.com>
Cc: Russell King <li...@armlinux.org.uk>
Cc: Catalin Marinas <catalin.mari...@arm.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: "H. Peter Anvin" <h...@zytor.com>
Cc: Ard Biesheuvel <ard.biesheu...@linaro.org>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Roy Franz <roy.fr...@linaro.org>
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-...@vger.kernel.org
Cc: x...@kernel.org
Signed-off-by: Matt Fleming <m...@codeblueprint.co.uk>
---
 arch/x86/platform/efi/efi_64.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 6e7242be1c87..4cc2b9688dc2 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -469,18 +469,13 @@ extern efi_status_t efi64_thunk(u32, ...);
        unsigned long flags;                                            \
        u32 func;                                                       \
                                                                        \
-       efi_sync_low_kernel_mappings();                                 \
        local_irq_save(flags);                                          \
-                                                                       \
-       efi_scratch.prev_cr3 = read_cr3();                              \
-       write_cr3((unsigned long)efi_scratch.efi_pgt);                  \
-       __flush_tlb_all();                                              \
+       arch_efi_call_virt_setup();                                     \
                                                                        \
        func = runtime_service32(f);                                    \
-       __s = efi64_thunk(func, __VA_ARGS__);                   \
+       __s = efi64_thunk(func, __VA_ARGS__);                           \
                                                                        \
-       write_cr3(efi_scratch.prev_cr3);                                \
-       __flush_tlb_all();                                              \
+       arch_efi_call_virt_teardown();                                  \
        local_irq_restore(flags);                                       \
                                                                        \
        __s;                                                            \
-- 
2.7.3

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