arm64: elf: Fix allnoconfig kernel build with !ARCH_USE_GNU_PROPERTY

Commit ab7876a98a21 ("arm64: elf: Enable BTI at exec based on ELF
program properties") introduced the conditional selection of
ARCH_USE_GNU_PROPERTY if BINFMT_ELF is enabled. With allnoconfig, this
option is no longer selected and the arm64 arch_parse_elf_property()
function clashes with the generic dummy implementation.

Link: http://lkml.kernel.org/r/20200318082830.GA31312@willie-the-truck
Fixes: ab7876a98a21 ("arm64: elf: Enable BTI at exec based on ELF program properties")
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d65d226..53c7771 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -64,7 +64,7 @@ config ARM64
        select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION
        select ARCH_KEEP_MEMBLOCK
        select ARCH_USE_CMPXCHG_LOCKREF
-       select ARCH_USE_GNU_PROPERTY if BINFMT_ELF
+       select ARCH_USE_GNU_PROPERTY
        select ARCH_USE_QUEUED_RWLOCKS
        select ARCH_USE_QUEUED_SPINLOCKS
        select ARCH_SUPPORTS_MEMORY_FAILURE