x86: kvm: x86: Remove unnecessary initial values of variables

Li zeming · sean-jc · commit 392a53246257 · 2023-08-17T11:35:28.000-07:00
bitmap and khz is assigned first, so it does not need to initialize the assignment. Signed-off-by: Li zeming <zeming@nfschina.com> Link: https://lore.kernel.org/r/20230817002631.2885-1-zeming@nfschina.com Signed-off-by: Sean Christopherson <seanjc@google.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
@@ -6512,7 +6512,7 @@ static void kvm_free_msr_filter(struct kvm_x86_msr_filter *msr_filter)
 static int kvm_add_msr_filter(struct kvm_x86_msr_filter *msr_filter,
 			      struct kvm_msr_filter_range *user_range)
 {
-	unsigned long *bitmap = NULL;
+	unsigned long *bitmap;
 	size_t bitmap_size;
 
 	if (!user_range->nmsrs)
@@ -9146,7 +9146,7 @@ static int kvmclock_cpu_down_prep(unsigned int cpu)
 static void tsc_khz_changed(void *data)
 {
 	struct cpufreq_freqs *freq = data;
-	unsigned long khz = 0;
+	unsigned long khz;
 
 	WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_CONSTANT_TSC));
 

Original file line number	Diff line number	Diff line change
`@@ -6512,7 +6512,7 @@ static void kvm_free_msr_filter(struct kvm_x86_msr_filter *msr_filter)`
`6512`	`6512`	`static int kvm_add_msr_filter(struct kvm_x86_msr_filter *msr_filter,`
`6513`	`6513`	`struct kvm_msr_filter_range *user_range)`
`6514`	`6514`	`{`
`6515`		`- unsigned long *bitmap = NULL;`
	`6515`	`+ unsigned long *bitmap;`
`6516`	`6516`	`size_t bitmap_size;`
`6517`	`6517`
`6518`	`6518`	`if (!user_range->nmsrs)`
`@@ -9146,7 +9146,7 @@ static int kvmclock_cpu_down_prep(unsigned int cpu)`
`9146`	`9146`	`static void tsc_khz_changed(void *data)`
`9147`	`9147`	`{`
`9148`	`9148`	`struct cpufreq_freqs *freq = data;`
`9149`		`- unsigned long khz = 0;`
	`9149`	`+ unsigned long khz;`
`9150`	`9150`
`9151`	`9151`	`WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_CONSTANT_TSC));`
`9152`	`9152`