From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave.Martin@arm.com (Dave Martin) Date: Fri, 25 Nov 2016 19:38:54 +0000 Subject: [RFC PATCH 06/29] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON In-Reply-To: <1480102762-23647-1-git-send-email-Dave.Martin@arm.com> References: <1480102762-23647-1-git-send-email-Dave.Martin@arm.com> Message-ID: <1480102762-23647-7-git-send-email-Dave.Martin@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The EFI runtime services ABI permits calls to EFI to clobber certain FPSIMD/NEON registers, as per the AArch64 procedure call standard. Saving/restoring the clobbered registers around such calls needs KERNEL_MODE_NEON, but the dependency is missing from Kconfig. This patch adds the missing dependency. This will aid bisection of the patches implementing support for the ARM Scalable Vector Extension (SVE). Signed-off-by: Dave Martin --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 969ef88..d008bb6 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -963,6 +963,7 @@ config EFI_STUB config EFI bool "UEFI runtime support" depends on OF && !CPU_BIG_ENDIAN + depends on KERNEL_MODE_NEON select LIBFDT select UCS2_STRING select EFI_PARAMS_FROM_FDT -- 2.1.4