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Subject[PATCH 2.6.20] KVM: Use ARRAY_SIZE macro when appropriate
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Hi all,

A patch to use ARRAY_SIZE macro already defined in kernel.h

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
---
diff --git a/drivers/kvm/kvm_svm.h b/drivers/kvm/kvm_svm.h
index 74cc862..624f1ca 100644
--- a/drivers/kvm/kvm_svm.h
+++ b/drivers/kvm/kvm_svm.h
@@ -1,6 +1,7 @@
#ifndef __KVM_SVM_H
#define __KVM_SVM_H

+#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/list.h>
#include <asm/msr.h>
@@ -18,7 +19,7 @@ static const u32 host_save_msrs[] = {
MSR_IA32_LASTBRANCHTOIP, MSR_IA32_LASTINTFROMIP,MSR_IA32_LASTINTTOIP,*/
};

-#define NR_HOST_SAVE_MSRS (sizeof(host_save_msrs) / sizeof(*host_save_msrs))
+#define NR_HOST_SAVE_MSRS ARRAY_SIZE(host_save_msrs)
#define NUM_DB_REGS 4

struct vcpu_svm {
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index c79df79..dc5c172 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -15,6 +15,7 @@
*/

#include <linux/module.h>
+#include <linux/kernel.h>
#include <linux/vmalloc.h>
#include <linux/highmem.h>
#include <linux/profile.h>
@@ -75,7 +76,7 @@ struct svm_init_data {

static u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000};

-#define NUM_MSR_MAPS (sizeof(msrpm_ranges) / sizeof(*msrpm_ranges))
+#define NUM_MSR_MAPS ARRAY_SIZE(msrpm_ranges)
#define MSRS_RANGE_SIZE 2048
#define MSRS_IN_RANGE (MSRS_RANGE_SIZE * 8 / 2)

@@ -1287,7 +1288,7 @@ static int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
__FUNCTION__, vcpu->svm->vmcb->control.exit_int_info,
exit_code);

- if (exit_code >= sizeof(svm_exit_handlers) / sizeof(*svm_exit_handlers)
+ if (exit_code >= ARRAY_SIZE(svm_exit_handlers)
|| svm_exit_handlers[exit_code] == 0) {
kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
printk(KERN_ERR "%s: 0x%x @ 0x%llx cr0 0x%lx rflags 0x%llx\n",
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 54c35c0..072965b 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -19,6 +19,7 @@
#include "vmx.h"
#include "kvm_vmx.h"
#include <linux/module.h>
+#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/profile.h>
@@ -76,7 +77,7 @@ static const u32 vmx_msr_index[] = {
#endif
MSR_EFER, MSR_K6_STAR,
};
-#define NR_VMX_MSR (sizeof(vmx_msr_index) / sizeof(*vmx_msr_index))
+#define NR_VMX_MSR ARRAY_SIZE(vmx_msr_index)

static inline int is_page_fault(u32 intr_info)
{
@@ -1645,8 +1646,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu,
[EXIT_REASON_HLT] = handle_halt,
};

-static const int kvm_vmx_max_exit_handlers =
- sizeof(kvm_vmx_exit_handlers) / sizeof(*kvm_vmx_exit_handlers);
+static const int kvm_vmx_max_exit_handlers = ARRAY_SIZE(kvm_vmx_exit_handlers);

/*
* The guest has exited. See if we can fix it or if we need userspace

--
Ahmed S. Darwish
http://darwish-07.blogspot.com
-
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