[SCSI] ch: remove forward declarations

This moves ch_template and changer_fops structs to the end of file and
removes forward declarations.

This also removes some trailing whitespace.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index 2b07014..7aad154 100644 (file)
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -90,16 +90,6 @@ static const char * vendor_labels[CH_TYPES-4] = {
 
 #define MAX_RETRIES   1
 
-static int  ch_probe(struct device *);
-static int  ch_remove(struct device *);
-static int  ch_open(struct inode * inode, struct file * filp);
-static int  ch_release(struct inode * inode, struct file * filp);
-static long ch_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-#ifdef CONFIG_COMPAT
-static long ch_ioctl_compat(struct file * filp,
-                           unsigned int cmd, unsigned long arg);
-#endif
-
 static struct class * ch_sysfs_class;
 
 typedef struct {
@@ -118,27 +108,6 @@ typedef struct {
 static DEFINE_IDR(ch_index_idr);
 static DEFINE_SPINLOCK(ch_index_lock);
 
-static struct scsi_driver ch_template =
-{
-       .owner          = THIS_MODULE,
-       .gendrv         = {
-               .name   = "ch",
-               .probe  = ch_probe,
-               .remove = ch_remove,
-       },
-};
-
-static const struct file_operations changer_fops =
-{
-       .owner          = THIS_MODULE,
-       .open           = ch_open,
-       .release        = ch_release,
-       .unlocked_ioctl = ch_ioctl,
-#ifdef CONFIG_COMPAT
-       .compat_ioctl   = ch_ioctl_compat,
-#endif
-};
-
 static const struct {
        unsigned char  sense;
        unsigned char  asc;
@@ -207,7 +176,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
 {
        int errno, retries = 0, timeout, result;
        struct scsi_sense_hdr sshdr;
-       
+
        timeout = (cmd[0] == INITIALIZE_ELEMENT_STATUS)
                ? timeout_init : timeout_move;
 
@@ -245,7 +214,7 @@ static int
 ch_elem_to_typecode(scsi_changer *ch, u_int elem)
 {
        int i;
-       
+
        for (i = 0; i < CH_TYPES; i++) {
                if (elem >= ch->firsts[i]  &&
                    elem <  ch->firsts[i] +
@@ -261,15 +230,15 @@ ch_read_element_status(scsi_changer *ch, u_int elem, char *data)
        u_char  cmd[12];
        u_char  *buffer;
        int     result;
-       
+
        buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
        if(!buffer)
                return -ENOMEM;
-       
+
  retry:
        memset(cmd,0,sizeof(cmd));
        cmd[0] = READ_ELEMENT_STATUS;
-       cmd[1] = (ch->device->lun << 5) | 
+       cmd[1] = (ch->device->lun << 5) |
                (ch->voltags ? 0x10 : 0) |
                ch_elem_to_typecode(ch,elem);
        cmd[2] = (elem >> 8) & 0xff;
@@ -296,7 +265,7 @@ ch_read_element_status(scsi_changer *ch, u_int elem, char *data)
        return result;
 }
 
-static int 
+static int
 ch_init_elem(scsi_changer *ch)
 {
        int err;
@@ -322,7 +291,7 @@ ch_readconfig(scsi_changer *ch)
        buffer = kzalloc(512, GFP_KERNEL | GFP_DMA);
        if (!buffer)
                return -ENOMEM;
-       
+
        memset(cmd,0,sizeof(cmd));
        cmd[0] = MODE_SENSE;
        cmd[1] = ch->device->lun << 5;
@@ -365,7 +334,7 @@ ch_readconfig(scsi_changer *ch)
        } else {
                vprintk("reading element address assigment page failed!\n");
        }
-       
+
        /* vendor specific element types */
        for (i = 0; i < 4; i++) {
                if (0 == vendor_counts[i])
@@ -443,7 +412,7 @@ static int
 ch_position(scsi_changer *ch, u_int trans, u_int elem, int rotate)
 {
        u_char  cmd[10];
-       
+
        dprintk("position: 0x%x\n",elem);
        if (0 == trans)
                trans = ch->firsts[CHET_MT];
@@ -462,7 +431,7 @@ static int
 ch_move(scsi_changer *ch, u_int trans, u_int src, u_int dest, int rotate)
 {
        u_char  cmd[12];
-       
+
        dprintk("move: 0x%x => 0x%x\n",src,dest);
        if (0 == trans)
                trans = ch->firsts[CHET_MT];
@@ -484,7 +453,7 @@ ch_exchange(scsi_changer *ch, u_int trans, u_int src,
            u_int dest1, u_int dest2, int rotate1, int rotate2)
 {
        u_char  cmd[12];
-       
+
        dprintk("exchange: 0x%x => 0x%x => 0x%x\n",
                src,dest1,dest2);
        if (0 == trans)
@@ -501,7 +470,7 @@ ch_exchange(scsi_changer *ch, u_int trans, u_int src,
        cmd[8]  = (dest2 >> 8) & 0xff;
        cmd[9]  =  dest2       & 0xff;
        cmd[10] = (rotate1 ? 1 : 0) | (rotate2 ? 2 : 0);
-       
+
        return ch_do_scsi(ch, cmd, NULL,0, DMA_NONE);
 }
 
@@ -539,14 +508,14 @@ ch_set_voltag(scsi_changer *ch, u_int elem,
                elem, tag);
        memset(cmd,0,sizeof(cmd));
        cmd[0]  = SEND_VOLUME_TAG;
-       cmd[1] = (ch->device->lun << 5) | 
+       cmd[1] = (ch->device->lun << 5) |
                ch_elem_to_typecode(ch,elem);
        cmd[2] = (elem >> 8) & 0xff;
        cmd[3] = elem        & 0xff;
        cmd[5] = clear
                ? (alternate ? 0x0d : 0x0c)
                : (alternate ? 0x0b : 0x0a);
-       
+
        cmd[9] = 255;
 
        memcpy(buffer,tag,32);
@@ -562,7 +531,7 @@ static int ch_gstatus(scsi_changer *ch, int type, unsigned char __user *dest)
        int retval = 0;
        u_char data[16];
        unsigned int i;
-       
+
        mutex_lock(&ch->lock);
        for (i = 0; i < ch->counts[type]; i++) {
                if (0 != ch_read_element_status
@@ -629,18 +598,18 @@ static long ch_ioctl(struct file *file,
        scsi_changer *ch = file->private_data;
        int retval;
        void __user *argp = (void __user *)arg;
-       
+
        switch (cmd) {
        case CHIOGPARAMS:
        {
                struct changer_params params;
-               
+
                params.cp_curpicker = 0;
                params.cp_npickers  = ch->counts[CHET_MT];
                params.cp_nslots    = ch->counts[CHET_ST];
                params.cp_nportals  = ch->counts[CHET_IE];
                params.cp_ndrives   = ch->counts[CHET_DT];
-               
+
                if (copy_to_user(argp, &params, sizeof(params)))
                        return -EFAULT;
                return 0;
@@ -670,11 +639,11 @@ static long ch_ioctl(struct file *file,
                        return -EFAULT;
                return 0;
        }
-       
+
        case CHIOPOSITION:
        {
                struct changer_position pos;
-               
+
                if (copy_from_user(&pos, argp, sizeof (pos)))
                        return -EFAULT;
 
@@ -689,7 +658,7 @@ static long ch_ioctl(struct file *file,
                mutex_unlock(&ch->lock);
                return retval;
        }
-       
+
        case CHIOMOVE:
        {
                struct changer_move mv;
@@ -702,7 +671,7 @@ static long ch_ioctl(struct file *file,
                        dprintk("CHIOMOVE: invalid parameter\n");
                        return -EBADSLT;
                }
-               
+
                mutex_lock(&ch->lock);
                retval = ch_move(ch,0,
                                 ch->firsts[mv.cm_fromtype] + mv.cm_fromunit,
@@ -715,7 +684,7 @@ static long ch_ioctl(struct file *file,
        case CHIOEXCHANGE:
        {
                struct changer_exchange mv;
-               
+
                if (copy_from_user(&mv, argp, sizeof (mv)))
                        return -EFAULT;
 
@@ -725,7 +694,7 @@ static long ch_ioctl(struct file *file,
                        dprintk("CHIOEXCHANGE: invalid parameter\n");
                        return -EBADSLT;
                }
-               
+
                mutex_lock(&ch->lock);
                retval = ch_exchange
                        (ch,0,
@@ -740,7 +709,7 @@ static long ch_ioctl(struct file *file,
        case CHIOGSTATUS:
        {
                struct changer_element_status ces;
-               
+
                if (copy_from_user(&ces, argp, sizeof (ces)))
                        return -EFAULT;
                if (ces.ces_type < 0 || ces.ces_type >= CH_TYPES)
@@ -756,19 +725,19 @@ static long ch_ioctl(struct file *file,
                u_char  *buffer;
                unsigned int elem;
                int     result,i;
-               
+
                if (copy_from_user(&cge, argp, sizeof (cge)))
                        return -EFAULT;
 
                if (0 != ch_checkrange(ch, cge.cge_type, cge.cge_unit))
                        return -EINVAL;
                elem = ch->firsts[cge.cge_type] + cge.cge_unit;
-               
+
                buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
                if (!buffer)
                        return -ENOMEM;
                mutex_lock(&ch->lock);
-               
+
        voltag_retry:
                memset(cmd,0,sizeof(cmd));
                cmd[0] = READ_ELEMENT_STATUS;
@@ -779,7 +748,7 @@ static long ch_ioctl(struct file *file,
                cmd[3] = elem        & 0xff;
                cmd[5] = 1;
                cmd[9] = 255;
-               
+
                if (0 == (result = ch_do_scsi(ch, cmd, buffer, 256, DMA_FROM_DEVICE))) {
                        cge.cge_status = buffer[18];
                        cge.cge_flags = 0;
@@ -819,7 +788,7 @@ static long ch_ioctl(struct file *file,
                }
                kfree(buffer);
                mutex_unlock(&ch->lock);
-               
+
                if (copy_to_user(argp, &cge, sizeof (cge)))
                        return -EFAULT;
                return result;
@@ -832,7 +801,7 @@ static long ch_ioctl(struct file *file,
                mutex_unlock(&ch->lock);
                return retval;
        }
-               
+
        case CHIOSVOLTAG:
        {
                struct changer_set_voltag csv;
@@ -873,7 +842,7 @@ static long ch_ioctl_compat(struct file * file,
                            unsigned int cmd, unsigned long arg)
 {
        scsi_changer *ch = file->private_data;
-       
+
        switch (cmd) {
        case CHIOGPARAMS:
        case CHIOGVPARAMS:
@@ -889,7 +858,7 @@ static long ch_ioctl_compat(struct file * file,
        {
                struct changer_element_status32 ces32;
                unsigned char __user *data;
-               
+
                if (copy_from_user(&ces32, (void __user *)arg, sizeof (ces32)))
                        return -EFAULT;
                if (ces32.ces_type < 0 || ces32.ces_type >= CH_TYPES)
@@ -982,10 +951,29 @@ static int ch_remove(struct device *dev)
        return 0;
 }
 
+static struct scsi_driver ch_template = {
+       .owner          = THIS_MODULE,
+       .gendrv         = {
+               .name   = "ch",
+               .probe  = ch_probe,
+               .remove = ch_remove,
+       },
+};
+
+static const struct file_operations changer_fops = {
+       .owner          = THIS_MODULE,
+       .open           = ch_open,
+       .release        = ch_release,
+       .unlocked_ioctl = ch_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl   = ch_ioctl_compat,
+#endif
+};
+
 static int __init init_ch_module(void)
 {
        int rc;
-       
+
        printk(KERN_INFO "SCSI Media Changer driver v" VERSION " \n");
         ch_sysfs_class = class_create(THIS_MODULE, "scsi_changer");
         if (IS_ERR(ch_sysfs_class)) {
@@ -1010,7 +998,7 @@ static int __init init_ch_module(void)
        return rc;
 }
 
-static void __exit exit_ch_module(void) 
+static void __exit exit_ch_module(void)
 {
        scsi_unregister_driver(&ch_template.gendrv);
        unregister_chrdev(SCSI_CHANGER_MAJOR, "ch");