From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Wed, 12 Mar 2014 16:50:20 +0100 Subject: [PATCH] ARM: always define CONFIG_PHYS_OFFSET on !MMU Message-ID: <4902708.0QMcK2ajbq@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Starting with 006fa2599bf0 "ARM: fix noMMU kallsyms symbol filtering", we use CONFIG_PHYS_OFFSET to calculate PAGE_OFFSET and have that passed into kallsyms as the start address. However, CONFIG_PHYS_OFFSET is defined only for platforms that don't set NEED_MACH_MEMORY_H. It is possible to build a noMMU kernel for these platforms by setting CONFIG_DRAM_BASE to the same value as the PLAT_PHYS_OFFSET. This means we can in fact rely on DRAM_BASE to be correct already, and implicitly define PHYS_OFFSET to the same value. Signed-off-by: Arnd Bergmann diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 72129f3..67314cb 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -271,7 +271,7 @@ config NEED_MACH_MEMORY_H config PHYS_OFFSET hex "Physical address of main memory" if MMU - depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H + depends on (!ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H) || !MMU default DRAM_BASE if !MMU help