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From: Gavin Shan <gshan@redhat.com>
To: kvmarm@lists.cs.columbia.edu
Cc: maz@kernel.org, shuah@kernel.org, kvm@vger.kernel.org,
	catalin.marinas@arm.com, andrew.jones@linux.dev,
	shan.gavin@gmail.com, bgardon@google.com, dmatlack@google.com,
	pbonzini@redhat.com, zhenyzha@redhat.com, will@kernel.org
Subject: [PATCH v4 2/6] KVM: x86: Move declaration of kvm_cpu_dirty_log_size() to kvm_dirty_ring.h
Date: Tue, 27 Sep 2022 08:54:35 +0800	[thread overview]
Message-ID: <20220927005439.21130-3-gshan@redhat.com> (raw)
In-Reply-To: <20220927005439.21130-1-gshan@redhat.com>

Not all architectures like ARM64 need to override the function. Move
its declaration to kvm_dirty_ring.h to avoid the following compiling
warning on ARM64 when the feature is enabled.

  arch/arm64/kvm/../../../virt/kvm/dirty_ring.c:14:12:        \
  warning: no previous prototype for 'kvm_cpu_dirty_log_size' \
  [-Wmissing-prototypes]                                      \
  int __weak kvm_cpu_dirty_log_size(void)

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Gavin Shan <gshan@redhat.com>
---
 arch/x86/include/asm/kvm_host.h | 2 --
 include/linux/kvm_dirty_ring.h  | 1 +
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index aa381ab69a19..f11b6a9388b5 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -2083,8 +2083,6 @@ static inline int kvm_cpu_get_apicid(int mps_cpu)
 #define GET_SMSTATE(type, buf, offset)		\
 	(*(type *)((buf) + (offset) - 0x7e00))
 
-int kvm_cpu_dirty_log_size(void);
-
 int memslot_rmap_alloc(struct kvm_memory_slot *slot, unsigned long npages);
 
 #define KVM_CLOCK_VALID_FLAGS						\
diff --git a/include/linux/kvm_dirty_ring.h b/include/linux/kvm_dirty_ring.h
index b188bfcf3a09..7926c5566c0a 100644
--- a/include/linux/kvm_dirty_ring.h
+++ b/include/linux/kvm_dirty_ring.h
@@ -71,6 +71,7 @@ static inline void kvm_dirty_ring_free(struct kvm_dirty_ring *ring)
 
 #else /* CONFIG_HAVE_KVM_DIRTY_RING */
 
+int kvm_cpu_dirty_log_size(void);
 u32 kvm_dirty_ring_get_rsvd_entries(void);
 int kvm_dirty_ring_alloc(struct kvm_dirty_ring *ring, int index, u32 size);
 
-- 
2.23.0

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  parent reply	other threads:[~2022-09-27  0:55 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-27  0:54 [PATCH v4 0/6] KVM: arm64: Enable ring-based dirty memory tracking Gavin Shan
2022-09-27  0:54 ` [PATCH v4 1/6] KVM: x86: Introduce KVM_REQ_RING_SOFT_FULL Gavin Shan
2022-09-27 10:26   ` Marc Zyngier
2022-09-27 11:31     ` Gavin Shan
2022-09-27 16:00     ` Peter Xu
2022-09-27  0:54 ` Gavin Shan [this message]
2022-09-27 16:00   ` [PATCH v4 2/6] KVM: x86: Move declaration of kvm_cpu_dirty_log_size() to kvm_dirty_ring.h Peter Xu
2022-09-27  0:54 ` [PATCH v4 3/6] KVM: arm64: Enable ring-based dirty memory tracking Gavin Shan
2022-09-27 16:02   ` Peter Xu
2022-09-27 17:32     ` Marc Zyngier
2022-09-27 18:21       ` Peter Xu
2022-09-27 23:47         ` Gavin Shan
2022-09-28  8:25           ` Marc Zyngier
2022-09-28 14:52             ` Peter Xu
2022-09-29  9:50               ` Gavin Shan
2022-09-29 11:31                 ` Gavin Shan
2022-09-29 14:44                   ` Marc Zyngier
2022-09-29 14:32                 ` Peter Xu
2022-09-30  9:28                   ` Marc Zyngier
2022-09-29 14:42                 ` Marc Zyngier
2022-10-04  4:26                   ` Gavin Shan
2022-10-04  4:26                     ` Gavin Shan
2022-10-04 13:26                     ` Peter Xu
2022-10-04 13:26                       ` Peter Xu
2022-10-04 15:45                     ` Marc Zyngier
2022-10-04 15:45                       ` Marc Zyngier
2022-09-29 14:34               ` Marc Zyngier
2022-09-27  0:54 ` [PATCH v4 4/6] KVM: selftests: Use host page size to map ring buffer in dirty_log_test Gavin Shan
2022-09-27  0:54 ` [PATCH v4 5/6] KVM: selftests: Clear dirty ring states between two modes " Gavin Shan
2022-09-27  0:54 ` [PATCH v4 6/6] KVM: selftests: Automate choosing dirty ring size " Gavin Shan
2022-09-27 10:30 ` [PATCH v4 0/6] KVM: arm64: Enable ring-based dirty memory tracking Marc Zyngier

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