tracing: fix for tracepoint API change

Commit 38516ab5 ("tracing: Let
tracepoints have data passed to tracepoint callbacks") requires this
fixup to the powerpc code.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/powerpc/platforms/pseries/hvCall_inst.c

@@ -102,7 +102,7 @@ static const struct file_operations hcall_inst_seq_fops = {
 #define CPU_NAME_BUF_SIZE	32
 
 
-static void probe_hcall_entry(unsigned long opcode, unsigned long *args)
+static void probe_hcall_entry(void *ignored, unsigned long opcode, unsigned long *args)
 {
 	struct hcall_stats *h;
 
@@ -114,7 +114,7 @@ static void probe_hcall_entry(unsigned long opcode, unsigned long *args)
 	h->purr_start = mfspr(SPRN_PURR);
 }
 
-static void probe_hcall_exit(unsigned long opcode, unsigned long retval,
+static void probe_hcall_exit(void *ignored, unsigned long opcode, unsigned long retval,
 			     unsigned long *retbuf)
 {
 	struct hcall_stats *h;
@@ -140,11 +140,11 @@ static int __init hcall_inst_init(void)
 	if (!firmware_has_feature(FW_FEATURE_LPAR))
 		return 0;
 
-	if (register_trace_hcall_entry(probe_hcall_entry))
+	if (register_trace_hcall_entry(probe_hcall_entry, NULL))
 		return -EINVAL;
 
-	if (register_trace_hcall_exit(probe_hcall_exit)) {
-		unregister_trace_hcall_entry(probe_hcall_entry);
+	if (register_trace_hcall_exit(probe_hcall_exit, NULL)) {
+		unregister_trace_hcall_entry(probe_hcall_entry, NULL);
 		return -EINVAL;
 	}