This is a note to let you know that I've just added the patch titled
KVM: ARM/arm64: fix broken __percpu annotation
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kvm-arm-arm64-fix-broken-__percpu-annotation.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4000be423cb01a8d09de878bb8184511c49d4238 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@xxxxxxx>
Date: Tue, 26 Aug 2014 15:13:21 +0100
Subject: KVM: ARM/arm64: fix broken __percpu annotation
From: Will Deacon <will.deacon@xxxxxxx>
commit 4000be423cb01a8d09de878bb8184511c49d4238 upstream.
Running sparse results in a bunch of noisy address space mismatches
thanks to the broken __percpu annotation on kvm_get_running_vcpus.
This function returns a pcpu pointer to a pointer, not a pointer to a
pcpu pointer. This patch fixes the annotation, which kills the warnings
from sparse.
Cc: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/kvm/arm.c | 2 +-
arch/arm64/include/asm/kvm_host.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -82,7 +82,7 @@ struct kvm_vcpu *kvm_arm_get_running_vcp
/**
* kvm_arm_get_running_vcpus - get the per-CPU array of currently running vcpus.
*/
-struct kvm_vcpu __percpu **kvm_get_running_vcpus(void)
+struct kvm_vcpu * __percpu *kvm_get_running_vcpus(void)
{
return &kvm_arm_running_vcpu;
}
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -177,7 +177,7 @@ static inline int kvm_test_age_hva(struc
}
struct kvm_vcpu *kvm_arm_get_running_vcpu(void);
-struct kvm_vcpu __percpu **kvm_get_running_vcpus(void);
+struct kvm_vcpu * __percpu *kvm_get_running_vcpus(void);
u64 kvm_call_hyp(void *hypfn, ...);
Patches currently in stable-queue which might be from will.deacon@xxxxxxx are
queue-3.14/arm-kvm-user_mem_abort-support-stage-2-mmio-page-mapping.patch
queue-3.14/kvm-arm-arm64-avoid-returning-negative-error-code-as-bool.patch
queue-3.14/kvm-arm-arm64-fix-non-const-declaration-of-function-returning-const.patch
queue-3.14/kvm-vgic-return-int-instead-of-bool-when-checking-i-o-ranges.patch
queue-3.14/kvm-arm-arm64-fix-broken-__percpu-annotation.patch
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