Select HAVE_EFFICIENT_UNALIGNED_ACCESS and allow GCC to generate unaligned data if we enable enable unaligned access in HW. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx> --- arch/arc/Kconfig | 1 + arch/arc/Makefile | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 37c8aeefa3a5..a1d976c612a6 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -390,6 +390,7 @@ if ISA_ARCV2 config ARC_USE_UNALIGNED_MEM_ACCESS bool "Handle unaligned access in HW and use it" default y + select HAVE_EFFICIENT_UNALIGNED_ACCESS help The ARC HS architecture supports unaligned memory access which is disabled by default. Enable unaligned access in diff --git a/arch/arc/Makefile b/arch/arc/Makefile index df00578c279d..e2b991f75bc5 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -28,6 +28,12 @@ cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape ifdef CONFIG_ISA_ARCV2 +ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS +cflags-y += -munaligned-access +else +cflags-y += -mno-unaligned-access +endif + ifndef CONFIG_ARC_HAS_LL64 cflags-y += -mno-ll64 endif -- 2.14.5 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
