[Xen-devel] [PATCH v2] xen/x86: Remove unnecessary cast on void pointer

[Simran Singhal <singhalsimran0@xxxxxxxxx>]

Assignment to a typed pointer is sufficient in C.
No cast is needed.

Also, changed some u64/u32 to uint64_t/uint32_t.

Signed-off-by: Simran Singhal <singhalsimran0@xxxxxxxxx>
---
Changes in v2:
        - Took the chance to change some uintX to uintX_t.

 xen/arch/x86/acpi/cpufreq/powernow.c |  2 +-
 xen/arch/x86/cpu/vpmu.c              |  2 +-
 xen/arch/x86/hpet.c                  |  2 +-
 xen/arch/x86/hvm/save.c              |  2 +-
 xen/arch/x86/hvm/vmx/vvmx.c          | 12 ++++++------
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/xen/arch/x86/acpi/cpufreq/powernow.c 
b/xen/arch/x86/acpi/cpufreq/powernow.c
index 3cf9c6cd05..f620bebc7e 100644
--- a/xen/arch/x86/acpi/cpufreq/powernow.c
+++ b/xen/arch/x86/acpi/cpufreq/powernow.c
@@ -58,7 +58,7 @@ static void transition_pstate(void *pstate)
 
 static void update_cpb(void *data)
 {
-    struct cpufreq_policy *policy = (struct cpufreq_policy *)data;
+    struct cpufreq_policy *policy = data;
 
     if (policy->turbo != CPUFREQ_TURBO_UNSUPPORTED) {
         uint64_t msr_content;
diff --git a/xen/arch/x86/cpu/vpmu.c b/xen/arch/x86/cpu/vpmu.c
index e50d478d23..1ed39ef03f 100644
--- a/xen/arch/x86/cpu/vpmu.c
+++ b/xen/arch/x86/cpu/vpmu.c
@@ -337,7 +337,7 @@ void vpmu_do_interrupt(struct cpu_user_regs *regs)
 
 static void vpmu_save_force(void *arg)
 {
-    struct vcpu *v = (struct vcpu *)arg;
+    struct vcpu *v = arg;
     struct vpmu_struct *vpmu = vcpu_vpmu(v);
 
     if ( !vpmu_is_set(vpmu, VPMU_CONTEXT_LOADED) )
diff --git a/xen/arch/x86/hpet.c b/xen/arch/x86/hpet.c
index 86929b9ba1..c46e7cf4ee 100644
--- a/xen/arch/x86/hpet.c
+++ b/xen/arch/x86/hpet.c
@@ -215,7 +215,7 @@ again:
 static void hpet_interrupt_handler(int irq, void *data,
         struct cpu_user_regs *regs)
 {
-    struct hpet_event_channel *ch = (struct hpet_event_channel *)data;
+    struct hpet_event_channel *ch = data;
 
     this_cpu(irq_count)--;
 
diff --git a/xen/arch/x86/hvm/save.c b/xen/arch/x86/hvm/save.c
index 0fc59d3487..a2c56fbc1e 100644
--- a/xen/arch/x86/hvm/save.c
+++ b/xen/arch/x86/hvm/save.c
@@ -417,7 +417,7 @@ void _hvm_read_entry(struct hvm_domain_context *h, void 
*dest,
     memcpy(dest, &h->data[h->cur], d->length);
 
     if ( d->length < dest_len )
-        memset((char *)dest + d->length, 0, dest_len - d->length);
+        memset(dest + d->length, 0, dest_len - d->length);
 
     h->cur += d->length;
 }
diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c
index f049920196..2edb103205 100644
--- a/xen/arch/x86/hvm/vmx/vvmx.c
+++ b/xen/arch/x86/hvm/vmx/vvmx.c
@@ -253,12 +253,12 @@ static int vvmcs_offset(u32 width, u32 type, u32 index)
     return offset;
 }
 
-u64 get_vvmcs_virtual(void *vvmcs, u32 vmcs_encoding)
+uint64_t get_vvmcs_virtual(void *vvmcs, uint32_t vmcs_encoding)
 {
     union vmcs_encoding enc;
-    u64 *content = (u64 *) vvmcs;
+    uint64_t *content = vvmcs;
     int offset;
-    u64 res;
+    uint64_t res;
 
     enc.word = vmcs_encoding;
     offset = vvmcs_offset(enc.width, enc.type, enc.index);
@@ -307,12 +307,12 @@ enum vmx_insn_errno get_vvmcs_real_safe(const struct vcpu 
*v, u32 encoding,
     return virtual_vmcs_vmread_safe(v, encoding, val);
 }
 
-void set_vvmcs_virtual(void *vvmcs, u32 vmcs_encoding, u64 val)
+void set_vvmcs_virtual(void *vvmcs, uint32_t vmcs_encoding, uint64_t val)
 {
     union vmcs_encoding enc;
-    u64 *content = (u64 *) vvmcs;
+    uint64_t *content = vvmcs;
     int offset;
-    u64 res;
+    uint64_t res;
 
     enc.word = vmcs_encoding;
     offset = vvmcs_offset(enc.width, enc.type, enc.index);
-- 
2.17.1