powerpc/pseries: Avoid deadlock on removing ddw

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / Kconfig

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index fefe7c8bf05f54725b2edb7acbcc801c95c6431c..a577609f8ed60229ed4d3fc26931bc23f955c599 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -111,6 +111,7 @@ config PPC
        select HAVE_DMA_API_DEBUG
        select HAVE_OPROFILE
        select HAVE_DEBUG_KMEMLEAK
+       select ARCH_HAS_SG_CHAIN
        select GENERIC_ATOMIC64 if PPC32
        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select HAVE_PERF_EVENTS
@@ -145,6 +146,7 @@ config PPC
        select HAVE_IRQ_EXIT_ON_IRQ_STACK
        select ARCH_USE_CMPXCHG_LOCKREF if PPC64
        select HAVE_ARCH_AUDITSYSCALL
+       select ARCH_SUPPORTS_ATOMIC_RMW
 
 config GENERIC_CSUM
        def_bool CPU_LITTLE_ENDIAN
@@ -397,6 +399,8 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
 config KEXEC
        bool "kexec system call"
        depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
+       select CRYPTO
+       select CRYPTO_SHA256
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot