[PATCH v2 1/4] ARM: make arch_ret_to_user macro optional
From: Rob Herring <hidden>
Date: 2012-02-09 01:33:36
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
From: Rob Herring <redacted> Only 3 platforms need arch_ret_to_user macro, so add NEED_RET_TO_USER kconfig option and make iop13xx, iop32x and iop33x select it. Signed-off-by: Rob Herring <redacted> --- arch/arm/Kconfig | 6 ++++++ arch/arm/kernel/entry-common.S | 8 +++++++- 2 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a48aecc..7d809b7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig@@ -186,6 +186,9 @@ config GENERIC_ISA_DMA config FIQ bool +config NEED_RET_TO_USER + bool + config ARCH_MTD_XIP bool
@@ -479,6 +482,7 @@ config ARCH_IOP13XX select ARCH_SUPPORTS_MSI select VMSPLIT_1G select NEED_MACH_MEMORY_H + select NEED_RET_TO_USER help Support for Intel's IOP13XX (XScale) family of processors.
@@ -486,6 +490,7 @@ config ARCH_IOP32X bool "IOP32x-based" depends on MMU select CPU_XSCALE + select NEED_RET_TO_USER select PLAT_IOP select PCI select ARCH_REQUIRE_GPIOLIB
@@ -497,6 +502,7 @@ config ARCH_IOP33X bool "IOP33x-based" depends on MMU select CPU_XSCALE + select NEED_RET_TO_USER select PLAT_IOP select PCI select ARCH_REQUIRE_GPIOLIB
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 9fd0ba9..54ee265 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S@@ -10,9 +10,15 @@ #include <asm/unistd.h> #include <asm/ftrace.h> -#include <mach/entry-macro.S> #include <asm/unwind.h> +#ifdef CONFIG_NEED_RET_TO_USER +#include <mach/entry-macro.S> +#else + .macro arch_ret_to_user, tmp1, tmp2 + .endm +#endif + #include "entry-header.S"
--
1.7.5.4