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x86/efi: Update efi_thunk() to use the the arch_efi_call_virt*() macros
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. Suggested-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Alex Thorlton <athorlton@sgi.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Roy Franz <roy.franz@linaro.org> Cc: Russ Anderson <rja@sgi.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1466839230-12781-7-git-send-email-matt@codeblueprint.co.uk [ Renamed variables to the standard __ prefix. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -466,22 +466,17 @@ extern efi_status_t efi64_thunk(u32, ...);
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#define efi_thunk(f, ...) \
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#define efi_thunk(f, ...) \
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({ \
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({ \
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efi_status_t __s; \
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efi_status_t __s; \
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unsigned long flags; \
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unsigned long __flags; \
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u32 func; \
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u32 __func; \
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\
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\
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efi_sync_low_kernel_mappings(); \
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local_irq_save(__flags); \
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local_irq_save(flags); \
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arch_efi_call_virt_setup(); \
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\
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\
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efi_scratch.prev_cr3 = read_cr3(); \
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__func = runtime_service32(f); \
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write_cr3((unsigned long)efi_scratch.efi_pgt); \
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__s = efi64_thunk(__func, __VA_ARGS__); \
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__flush_tlb_all(); \
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\
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\
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func = runtime_service32(f); \
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arch_efi_call_virt_teardown(); \
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__s = efi64_thunk(func, __VA_ARGS__); \
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local_irq_restore(__flags); \
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\
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write_cr3(efi_scratch.prev_cr3); \
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__flush_tlb_all(); \
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local_irq_restore(flags); \
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\
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\
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__s; \
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__s; \
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})
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})
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