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Diffstat (limited to 'drivers/block/floppy.c')
-rw-r--r--drivers/block/floppy.c44
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index a5b857c5c4b8..374621a512e0 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -479,7 +479,6 @@ static struct floppy_struct floppy_type[32] = {
{ 3200,20,2,80,0,0x1C,0x00,0xCF,0x2C,"H1600" }, /* 31 1.6MB 3.5" */
};
-#define NUMBER(x) (sizeof(x) / sizeof(*(x)))
#define SECTSIZE (_FD_SECTSIZE(*floppy))
/* Auto-detection: Disk type used until the next media change occurs. */
@@ -3445,6 +3444,23 @@ static int get_floppy_geometry(int drive, int type, struct floppy_struct **g)
return 0;
}
+static int fd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+ int drive = (long)bdev->bd_disk->private_data;
+ int type = ITYPE(drive_state[drive].fd_device);
+ struct floppy_struct *g;
+ int ret;
+
+ ret = get_floppy_geometry(drive, type, &g);
+ if (ret)
+ return ret;
+
+ geo->heads = g->head;
+ geo->sectors = g->sect;
+ geo->cylinders = g->track;
+ return 0;
+}
+
static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long param)
{
@@ -3474,23 +3490,6 @@ static int fd_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
cmd = FDEJECT;
}
- /* generic block device ioctls */
- switch (cmd) {
- /* the following have been inspired by the corresponding
- * code for other block devices. */
- struct floppy_struct *g;
- case HDIO_GETGEO:
- {
- struct hd_geometry loc;
- ECALL(get_floppy_geometry(drive, type, &g));
- loc.heads = g->head;
- loc.sectors = g->sect;
- loc.cylinders = g->track;
- loc.start = 0;
- return _COPYOUT(loc);
- }
- }
-
/* convert the old style command into a new style command */
if ((cmd & 0xff00) == 0x0200) {
ECALL(normalize_ioctl(&cmd, &size));
@@ -3645,7 +3644,7 @@ static void __init config_types(void)
const char *name = NULL;
static char temparea[32];
- if (type < NUMBER(default_drive_params)) {
+ if (type < ARRAY_SIZE(default_drive_params)) {
params = &default_drive_params[type].params;
if (type) {
name = default_drive_params[type].name;
@@ -3938,6 +3937,7 @@ static struct block_device_operations floppy_fops = {
.open = floppy_open,
.release = floppy_release,
.ioctl = fd_ioctl,
+ .getgeo = fd_getgeo,
.media_changed = check_floppy_change,
.revalidate_disk = floppy_revalidate,
};
@@ -3960,7 +3960,7 @@ static void __init register_devfs_entries(int drive)
{
int base_minor = (drive < 4) ? drive : (124 + drive);
- if (UDP->cmos < NUMBER(default_drive_params)) {
+ if (UDP->cmos < ARRAY_SIZE(default_drive_params)) {
int i = 0;
do {
int minor = base_minor + (table_sup[UDP->cmos][i] << 2);
@@ -4218,7 +4218,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data)
!(allowed_drive_mask & (1 << drive)) ||
fdc_state[FDC(drive)].version == FDC_NONE)
return NULL;
- if (((*part >> 2) & 0x1f) >= NUMBER(floppy_type))
+ if (((*part >> 2) & 0x1f) >= ARRAY_SIZE(floppy_type))
return NULL;
*part = 0;
return get_disk(disks[drive]);
@@ -4570,7 +4570,7 @@ static void unregister_devfs_entries(int drive)
{
int i;
- if (UDP->cmos < NUMBER(default_drive_params)) {
+ if (UDP->cmos < ARRAY_SIZE(default_drive_params)) {
i = 0;
do {
devfs_remove("floppy/%d%s", drive,
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