Change the minimum mmap address back to 32768 on ARM systems (thanks to Jon Masters), Add patch to fix unified kernel build failure
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Peter Robinson
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arm-allnoconfig-error-__LINUX_ARM_ARCH__-undeclared.patch
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arm-allnoconfig-error-__LINUX_ARM_ARCH__-undeclared.patch
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From patchwork Sun Jul 22 10:01:43 2012
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: arm-allnoconfig error: '__LINUX_ARM_ARCH__' undeclared
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Date: Sun, 22 Jul 2012 10:01:43 -0000
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From: Arnd Bergmann <arnd@arndb.de>
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X-Patchwork-Id: 1224201
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Message-Id: <201207221001.43528.arnd@arndb.de>
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To: Fengguang Wu <fengguang.wu@intel.com>
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Cc: Russell King <linux@arm.linux.org.uk>,
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LKML <linux-kernel@vger.kernel.org>, linux-arm-kernel@lists.infradead.org
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On Sunday 22 July 2012, Fengguang Wu wrote:
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> Kernel build failed on arm-allnoconfig:
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>
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> include/linux/math64.h:55:15: error: '__LINUX_ARM_ARCH__' undeclared (first use in this function)
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> arch/arm/include/asm/glue-cache.h:129:2: error: #error Unknown cache maintenance model
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> arch/arm/include/asm/glue-df.h:99:2: error: #error Unknown data abort handler type
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> arch/arm/include/asm/glue-pf.h:54:2: error: #error Unknown prefetch abort handler type
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>
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> Do you think this allnoconfig test meaningful at all?
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The allno/mod/yesconfig tests on ARM are somewhat limited in their
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usefulness at the moment because they always pick the same platform
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type (versatile) and don't really cover the cases that most people
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are interested in.
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The particular problem with allnoconfig is that the logic to determine
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the architecture level depends on at least one platform being selected,
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and there are also problems with nommu kernels that tend to not work
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if certain other options are not set correctly.
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We can make the nommu case go away if we make hide the option for
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non-expert configurations including allnoconfig. I suggested adding
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some logic to all the subarch Kconfig files that forces at least
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one of the boards to be enabled like the patch below, but a number
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of people didn't like it.
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For reference, here is what I would use in order to get 'make
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allnoconfig' to work on ARM. My impression is at the moment that
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we should make a more serious attempt at fixing all the possible
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configurations when we get to 'multiplatform' configurations,
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because that will be more interesting than doing it just for
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the versatile platform.
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Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
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index a306d6d..e43e743 100644
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--- a/arch/arm/Kconfig
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+++ b/arch/arm/Kconfig
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@@ -236,7 +236,7 @@ source "kernel/Kconfig.freezer"
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menu "System Type"
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config MMU
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- bool "MMU-based Paged Memory Management Support"
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+ bool "MMU-based Paged Memory Management Support" if EXPERT
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default y
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help
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Select if you want MMU-based virtualised addressing space
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diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig
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index c1f38f6..455f20a 100644
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--- a/arch/arm/mach-versatile/Kconfig
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+++ b/arch/arm/mach-versatile/Kconfig
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@@ -25,4 +25,13 @@ config MACH_VERSATILE_DT
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Include support for the ARM(R) Versatile/PB platform,
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using the device tree for discovery
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+config MACH_VERSATILE_AUTO
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+ def_bool y
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+ depends on !ARCH_VERSATILE_PB
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+ depends on !MACH_VERSATILE_AB
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+ select MACH_VERSATILE_DT
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+ help
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+ We autoselect MACH_VERSATILE_DT if both PB and AB are
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+ disabled, to ensure that at least one platform is enabled.
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+
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endmenu
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@ -37,7 +37,6 @@ CONFIG_ARM_ERRATA_742231=y
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CONFIG_ARM_ERRATA_754327=y
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CONFIG_ARM_ERRATA_764369=y
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# Generic ARM config options
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CONFIG_ZBOOT_ROM_TEXT=0
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CONFIG_ZBOOT_ROM_BSS=0
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@ -74,6 +73,9 @@ CONFIG_SUSPEND=y
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CONFIG_ARM_CPU_SUSPEND=y
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CONFIG_ARM_CPU_TOPOLOGY=y
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CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
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CONFIG_LSM_MMAP_MIN_ADDR=32768
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# CONFIG_XEN is not set
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CONFIG_THERMAL=y
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@ -88,6 +88,9 @@ CONFIG_CPU_IDLE=y
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# CONFIG_CPU_IDLE_GOV_LADDER is not set
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CONFIG_CPU_IDLE_GOV_MENU=y
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CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
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CONFIG_LSM_MMAP_MIN_ADDR=32768
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CONFIG_NO_HZ=y
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CONFIG_HIGH_RES_TIMERS=y
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@ -741,6 +741,7 @@ Patch19001: i82975x-edac-fix.patch
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# ARM
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Patch21000: arm-export-read_current_timer.patch
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Patch21001: arm-allnoconfig-error-__LINUX_ARM_ARCH__-undeclared.patch
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# OMAP
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Patch21003: arm-omapdrm-fixinc.patch
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@ -1342,6 +1343,7 @@ ApplyPatch vmbugon-warnon.patch
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# ARM
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#
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ApplyPatch arm-export-read_current_timer.patch
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ApplyPatch arm-allnoconfig-error-__LINUX_ARM_ARCH__-undeclared.patch
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ApplyPatch arm-omapdrm-fixinc.patch
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ApplyPatch arm-tegra-nvec-kconfig.patch
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ApplyPatch arm-tegra-usb-no-reset-linux33.patch
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@ -2345,6 +2347,10 @@ fi
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# ||----w |
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# || ||
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%changelog
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* Tue Nov 20 2012 Peter Robinson <pbrobinson@fedoraproject.org>
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- Change the minimum mmap address back to 32768 on ARM systems (thanks to Jon Masters)
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- Add patch to fix unified kernel build failure
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* Mon Nov 19 2012 Josh Boyer <jwboyer@redhat.com>
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- Add various patches to fix perf build on non-x86 arches
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