Commit e580b8bc authored Sep 18, 2017 by Dave Martin Committed by Catalin Marinas Sep 18, 2017

arm64: efi: Don't include EFI fpsimd save/restore code in non-EFI kernels



__efi_fpsimd_begin()/__efi_fpsimd_end() are for use when making EFI
calls only, so using them in non-EFI kernels is not allowed.

This patch compiles them out if CONFIG_EFI is not set.

Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent 2bd6bf03

arch/arm64/kernel/fpsimd.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -321,6 +321,8 @@ void kernel_neon_end(void)
		}
		EXPORT_SYMBOL(kernel_neon_end);

		#ifdef CONFIG_EFI

		static DEFINE_PER_CPU(struct fpsimd_state, efi_fpsimd_state);
		static DEFINE_PER_CPU(bool, efi_fpsimd_state_used);

		@@ -370,6 +372,8 @@ void __efi_fpsimd_end(void)
		kernel_neon_end();
		}

		#endif /* CONFIG_EFI */

		#endif /* CONFIG_KERNEL_MODE_NEON */

		#ifdef CONFIG_CPU_PM