x86: remove unneded casts

x86: remove unneeded casts

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

14 files changed, 24 insertions, 24 deletions

diff --git a/arch/x86/boot/compressed/misc_32.c b/arch/x86/boot/compressed/misc_32.c
index 9103652058c4..5a0281c81edf 100644
--- a/arch/x86/boot/compressed/misc_32.c
+++ b/arch/x86/boot/compressed/misc_32.c
@@ -285,7 +285,7 @@ static void putstr(const char *s)
 static void* memset(void* s, int c, unsigned n)
 {
         int i;
-        char *ss = (char*)s;
+        char *ss = s;
 
         for (i=0;i<n;i++) ss[i] = c;
         return s;
@@ -294,7 +294,8 @@ static void* memset(void* s, int c, unsigned n)
 static void* memcpy(void* dest, const void* src, unsigned n)
 {
         int i;
-        char *d = (char *)dest, *s = (char *)src;
+        const char *s = src;
+        char *d = dest;
 
         for (i=0;i<n;i++) d[i] = s[i];
         return dest;
diff --git a/arch/x86/boot/compressed/misc_64.c b/arch/x86/boot/compressed/misc_64.c
index 8494f0dcff21..8c1573b5d6c7 100644
--- a/arch/x86/boot/compressed/misc_64.c
+++ b/arch/x86/boot/compressed/misc_64.c
@@ -284,7 +284,7 @@ static void putstr(const char *s)
 static void* memset(void* s, int c, unsigned n)
 {
         int i;
-        char *ss = (char*)s;
+        char *ss = s;
 
         for (i=0;i<n;i++) ss[i] = c;
         return s;
@@ -293,7 +293,8 @@ static void* memset(void* s, int c, unsigned n)
 static void* memcpy(void* dest, const void* src, unsigned n)
 {
         int i;
-        char *d = (char *)dest, *s = (char *)src;
+        const char *s = src;
+        char *d = dest;
 
         for (i=0;i<n;i++) d[i] = s[i];
         return dest;
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 0a34c24f19e5..1c0503bdfb1a 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -472,7 +472,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
                         restorer = VDSO32_SYMBOL(current->mm->context.vdso,
                                                  sigreturn);
                 else
-                        restorer = (void *)&frame->retcode;
+                        restorer = &frame->retcode;
         }
         err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
 
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;
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index 8ac51b82a632..37756b6fb329 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -34,8 +34,8 @@ void *memmove(void *dest, const void *src, size_t n)
                         "cld"
                         : "=&c" (d0), "=&S" (d1), "=&D" (d2)
                         :"0" (n),
-                         "1" (n-1+(const char *)src),
-                         "2" (n-1+(char *)dest)
+                         "1" (n-1+src),
+                         "2" (n-1+dest)
                         :"memory");
         }
         return dest;
diff --git a/arch/x86/lib/memmove_64.c b/arch/x86/lib/memmove_64.c
index 751ebae8ec42..80175e47b190 100644
--- a/arch/x86/lib/memmove_64.c
+++ b/arch/x86/lib/memmove_64.c
@@ -11,8 +11,8 @@ void *memmove(void * dest,const void *src,size_t count)
         if (dest < src) { 
                 return memcpy(dest,src,count);
         } else {
-                char *p = (char *) dest + count;
-                char *s = (char *) src + count;
+                char *p = dest + count;
+                const char *s = src + count;
                 while (count--)
                         *--p = *--s;
         }