cifs: remove unnecessary type castings

remove unnecessary void* type castings.
Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/connect.c

@@ -2644,7 +2644,7 @@ match_prepath(struct super_block *sb, struct cifs_mnt_data *mnt_data)
 int
 cifs_match_super(struct super_block *sb, void *data)
 {
-	struct cifs_mnt_data *mnt_data = (struct cifs_mnt_data *)data;
+	struct cifs_mnt_data *mnt_data = data;
 	struct smb3_fs_context *ctx;
 	struct cifs_sb_info *cifs_sb;
 	struct TCP_Server_Info *tcp_srv;

fs/cifs/inode.c

@@ -1223,7 +1223,7 @@ static const struct inode_operations cifs_ipc_inode_ops = {
 static int
 cifs_find_inode(struct inode *inode, void *opaque)
 {
-	struct cifs_fattr *fattr = (struct cifs_fattr *) opaque;
+	struct cifs_fattr *fattr = opaque;
 
 	/* don't match inode with different uniqueid */
 	if (CIFS_I(inode)->uniqueid != fattr->cf_uniqueid)
@@ -1247,7 +1247,7 @@ cifs_find_inode(struct inode *inode, void *opaque)
 static int
 cifs_init_inode(struct inode *inode, void *opaque)
 {
-	struct cifs_fattr *fattr = (struct cifs_fattr *) opaque;
+	struct cifs_fattr *fattr = opaque;
 
 	CIFS_I(inode)->uniqueid = fattr->cf_uniqueid;
 	CIFS_I(inode)->createtime = fattr->cf_createtime;

fs/cifs/netmisc.c

@@ -911,7 +911,7 @@ map_and_check_smb_error(struct mid_q_entry *mid, bool logErr)
 unsigned int
 smbCalcSize(void *buf, struct TCP_Server_Info *server)
 {
-	struct smb_hdr *ptr = (struct smb_hdr *)buf;
+	struct smb_hdr *ptr = buf;
 	return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
 		2 /* size of the bcc field */ + get_bcc(ptr));
 }

fs/cifs/smb2misc.c

@@ -402,7 +402,7 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *shdr)
 unsigned int
 smb2_calc_size(void *buf, struct TCP_Server_Info *srvr)
 {
-	struct smb2_pdu *pdu = (struct smb2_pdu *)buf;
+	struct smb2_pdu *pdu = buf;
 	struct smb2_hdr *shdr = &pdu->hdr;
 	int offset; /* the offset from the beginning of SMB to data area */
 	int data_length; /* the length of the variable length data area */

fs/cifs/smb2pdu.c

@@ -354,7 +354,7 @@ fill_small_buf(__le16 smb2_command, struct cifs_tcon *tcon,
 	       void *buf,
 	       unsigned int *total_len)
 {
-	struct smb2_pdu *spdu = (struct smb2_pdu *)buf;
+	struct smb2_pdu *spdu = buf;
 	/* lookup word count ie StructureSize from table */
 	__u16 parmsize = smb2_req_struct_sizes[le16_to_cpu(smb2_command)];