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9113c2aa05
linux/arch/arm64
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Suzuki K Poulose 9113c2aa05 arm64: Fix incorrect per-cpu usage for boot CPU 
In smp_prepare_boot_cpu(), we invoke cpuinfo_store_boot_cpu to  store
the cpuinfo in a per-cpu ptr, before initialising the per-cpu offset for
the boot CPU. This patch reorders the sequence to make sure we initialise
the per-cpu offset before accessing the per-cpu area.

Commit 4b998ff188 ("arm64: Delay cpuinfo_store_boot_cpu") fixed the
issue where we modified the per-cpu area even before the kernel initialises
the per-cpu areas, but failed to wait until the boot cpu updated it's
offset.

Fixes: 4b998ff188 ("arm64: Delay cpuinfo_store_boot_cpu")
Cc: <stable@vger.kernel.org> # 4.4+
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-21 15:59:16 +01:00
..
boot arm64: localise Image objcopy flags 2016-07-19 15:30:23 +01:00
configs arm64/kexec: Enable kexec in the arm64 defconfig 2016-06-27 16:31:25 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-03-17 11:22:54 -07:00
include arm64: debug: remove unused local_dbg_{enable, disable} macros 2016-07-19 16:59:40 +01:00
kernel arm64: Fix incorrect per-cpu usage for boot CPU 2016-07-21 15:59:16 +01:00
kvm arm64/kvm: use ESR_ELx_EC to extract EC 2016-06-21 17:07:38 +01:00
lib arm64: kasan: instrument user memory access API 2016-06-21 15:37:18 +01:00
mm arm64: debug: unmask PSTATE.D earlier 2016-07-19 16:56:46 +01:00
net bpf: arm64: remove callee-save registers use for tmp registers 2016-05-17 14:03:33 -04:00
xen xen/arm: introduce HYPERVISOR_platform_op on arm and arm64 2015-12-21 14:40:56 +00:00
Kconfig arm64/kexec: Add core kexec support 2016-06-27 16:31:25 +01:00
Kconfig.debug arm64: enable CONFIG_SET_MODULE_RONX by default 2016-05-31 14:23:29 +01:00
Kconfig.platforms ARM: SoC 64-bit changes for v4.7 2016-05-18 12:43:08 -07:00
Makefile arm64: localise Image objcopy flags 2016-07-19 15:30:23 +01:00