powerpc: remove cast from void*

Unnecessary cast from void* in assignment.
Signed-off-by: Nmatt mooney <mfm@muteddisk.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

arch/powerpc/platforms/pseries/hvCall_inst.c

@@ -55,7 +55,7 @@ static void hc_stop(struct seq_file *m, void *p)
 static int hc_show(struct seq_file *m, void *p)
 {
 	unsigned long h_num = (unsigned long)p;
-	struct hcall_stats *hs = (struct hcall_stats *)m->private;
+	struct hcall_stats *hs = m->private;
 
 	if (hs[h_num].num_calls) {
 		if (cpu_has_feature(CPU_FTR_PURR))