9 files changed, 13 insertions, 15 deletions

diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c
index 749d00cb2ebd..06fcce516d51 100644
--- a/arch/x86/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c
@@ -694,7 +694,7 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle,
 	if ( acpi_bus_get_device(obj_handle, &d) ) {
 		return 0;
 	}
-	*return_value = (void *)acpi_driver_data(d);
+	*return_value = acpi_driver_data(d);
 	return 1;
 }
 
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index d387c770c518..dec66e452810 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -50,7 +50,7 @@ struct cpuid_command {
 
 static void cpuid_smp_cpuid(void *cmd_block)
 {
-	struct cpuid_command *cmd = (struct cpuid_command *)cmd_block;
+	struct cpuid_command *cmd = cmd_block;
 
 	cpuid(cmd->reg, &cmd->data[0], &cmd->data[1], &cmd->data[2],
 		      &cmd->data[3]);
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index f7ddbb8c3fe8..a99e764fd66a 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -953,7 +953,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 				       unsigned long val, void *data)
 {
-	struct die_args *args = (struct die_args *)data;
+	struct die_args *args = data;
 	int ret = NOTIFY_DONE;
 
 	if (args->regs && user_mode_vm(args->regs))
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 40cfd5488719..6ff447f9fda7 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -244,8 +244,8 @@ static int microcode_sanity_check(void *mc)
 		return 0;
 	/* check extended signature checksum */
 	for (i = 0; i < ext_sigcount; i++) {
-		ext_sig = (struct extended_signature *)((void *)ext_header
-			+ EXT_HEADER_SIZE + EXT_SIGNATURE_SIZE * i);
+		ext_sig = (void *)ext_header + EXT_HEADER_SIZE +
+			  EXT_SIGNATURE_SIZE * i;
 		sum = orig_sum
 			- (mc_header->sig + mc_header->pf + mc_header->cksum)
 			+ (ext_sig->sig + ext_sig->pf + ext_sig->cksum);
@@ -279,11 +279,9 @@ static int get_maching_microcode(void *mc, int cpu)
 	if (total_size <= get_datasize(mc_header) + MC_HEADER_SIZE)
 		return 0;
 
-	ext_header = (struct extended_sigtable *)(mc +
-			get_datasize(mc_header) + MC_HEADER_SIZE);
+	ext_header = mc + get_datasize(mc_header) + MC_HEADER_SIZE;
 	ext_sigcount = ext_header->count;
-	ext_sig = (struct extended_signature *)((void *)ext_header
-			+ EXT_HEADER_SIZE);
+	ext_sig = (void *)ext_header + EXT_HEADER_SIZE;
 	for (i = 0; i < ext_sigcount; i++) {
 		if (microcode_update_match(cpu, mc_header,
 				ext_sig->sig, ext_sig->pf))
@@ -539,7 +537,7 @@ static int cpu_request_microcode(int cpu)
 		pr_debug("ucode data file %s load failed\n", name);
 		return error;
 	}
-	buf = (void *)firmware->data;
+	buf = firmware->data;
 	size = firmware->size;
 	while ((offset = get_next_ucode_from_buffer(&mc, buf, size, offset))
 			> 0) {
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 95313532b2e0..b4c470658a8a 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -470,7 +470,7 @@ static inline void set_32bit_tls(struct task_struct *t, int tls, u32 addr)
 		.limit_in_pages = 1,
 		.useable = 1,
 	};
-	struct desc_struct *desc = (void *)t->thread.tls_array;
+	struct desc_struct *desc = t->thread.tls_array;
 	desc += tls;
 	fill_ldt(desc, &ud);
 }
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 89a690edf999..caee1f002fed 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -368,7 +368,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 	if (current->binfmt->hasvdso)
 		restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
 	else
-		restorer = (void *)&frame->retcode;
+		restorer = &frame->retcode;
 	if (ka->sa.sa_flags & SA_RESTORER)
 		restorer = ka->sa.sa_restorer;
 
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 915ec6267326..7a62dced61ca 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -132,7 +132,7 @@ static unsigned long __cpuinit setup_trampoline(void)
  */
 void __init smp_alloc_memory(void)
 {
-	trampoline_base = (void *) alloc_bootmem_low_pages(PAGE_SIZE);
+	trampoline_base = alloc_bootmem_low_pages(PAGE_SIZE);
 	/*
 	 * Has to be in very low memory so we can execute
 	 * real-mode AP code.
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 4f4021b5bfb5..02f0f61f5b11 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -24,7 +24,7 @@ static int save_stack_stack(void *data, char *name)
 
 static void save_stack_address(void *data, unsigned long addr, int reliable)
 {
-	struct stack_trace *trace = (struct stack_trace *)data;
+	struct stack_trace *trace = data;
 	if (trace->skip > 0) {
 		trace->skip--;
 		return;
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 911ed28afff8..4aa4520f9499 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -217,7 +217,7 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
 static inline int valid_stack_ptr(struct thread_info *tinfo,
 			void *p, unsigned int size, void *end)
 {
-	void *t = (void *)tinfo;
+	void *t = tinfo;
 	if (end) {
 		if (p < end && p >= (end-THREAD_SIZE))
 			return 1;