ipmi: remove unnecessary type castings

remove unnecessary void* type castings.
Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Message-Id: <20220421150941.7659-1-yuzhe@nfschina.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>

drivers/char/ipmi/ipmi_msghandler.c

@@ -2332,7 +2332,7 @@ static int i_ipmi_request(struct ipmi_user     *user,
 	recv_msg->user_msg_data = user_msg_data;
 
 	if (supplied_smi)
-		smi_msg = (struct ipmi_smi_msg *) supplied_smi;
+		smi_msg = supplied_smi;
 	else {
 		smi_msg = ipmi_alloc_smi_msg();
 		if (smi_msg == NULL) {
@@ -4080,7 +4080,7 @@ static int handle_ipmb_direct_rcv_rsp(struct ipmi_smi *intf,
 	struct ipmi_recv_msg *recv_msg;
 	struct ipmi_ipmb_direct_addr *daddr;
 
-	recv_msg = (struct ipmi_recv_msg *) msg->user_data;
+	recv_msg = msg->user_data;
 	if (recv_msg == NULL) {
 		dev_warn(intf->si_dev,
 			 "IPMI direct message received with no owner. This could be because of a malformed message, or because of a hardware error.  Contact your hardware vendor for assistance.\n");
@@ -4498,7 +4498,7 @@ static int handle_bmc_rsp(struct ipmi_smi *intf,
 	struct ipmi_recv_msg *recv_msg;
 	struct ipmi_system_interface_addr *smi_addr;
 
-	recv_msg = (struct ipmi_recv_msg *) msg->user_data;
+	recv_msg = msg->user_data;
 	if (recv_msg == NULL) {
 		dev_warn(intf->si_dev,
 			 "IPMI SMI message received with no owner. This could be because of a malformed message, or because of a hardware error.  Contact your hardware vendor for assistance.\n");

drivers/char/ipmi/ipmi_ssif.c

@@ -1076,7 +1076,7 @@ static void start_next_msg(struct ssif_info *ssif_info, unsigned long *flags)
 static void sender(void                *send_info,
 		   struct ipmi_smi_msg *msg)
 {
-	struct ssif_info *ssif_info = (struct ssif_info *) send_info;
+	struct ssif_info *ssif_info = send_info;
 	unsigned long oflags, *flags;
 
 	BUG_ON(ssif_info->waiting_msg);
@@ -1113,7 +1113,7 @@ static int get_smi_info(void *send_info, struct ipmi_smi_info *data)
  */
 static void request_events(void *send_info)
 {
-	struct ssif_info *ssif_info = (struct ssif_info *) send_info;
+	struct ssif_info *ssif_info = send_info;
 	unsigned long oflags, *flags;
 
 	if (!ssif_info->has_event_buffer)
@@ -1130,7 +1130,7 @@ static void request_events(void *send_info)
  */
 static void ssif_set_need_watch(void *send_info, unsigned int watch_mask)
 {
-	struct ssif_info *ssif_info = (struct ssif_info *) send_info;
+	struct ssif_info *ssif_info = send_info;
 	unsigned long oflags, *flags;
 	long timeout = 0;