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path: root/drivers/cdrom
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Diffstat (limited to 'drivers/cdrom')
-rw-r--r--drivers/cdrom/cdrom.c71
1 files changed, 36 insertions, 35 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index c8ca3426c5b0..49ac5662585b 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -338,8 +338,6 @@ do { \
/* Not-exported routines. */
-static int cdrom_get_disc_info(struct cdrom_device_info *cdi, disc_information *di);
-
static void cdrom_sysctl_register(void);
static LIST_HEAD(cdrom_list);
@@ -369,6 +367,42 @@ static int cdrom_flush_cache(struct cdrom_device_info *cdi)
return cdi->ops->generic_packet(cdi, &cgc);
}
+/* requires CD R/RW */
+static int cdrom_get_disc_info(struct cdrom_device_info *cdi,
+ disc_information *di)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+ struct packet_command cgc;
+ int ret, buflen;
+
+ /* set up command and get the disc info */
+ init_cdrom_command(&cgc, di, sizeof(*di), CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DISC_INFO;
+ cgc.cmd[8] = cgc.buflen = 2;
+ cgc.quiet = 1;
+
+ ret = cdo->generic_packet(cdi, &cgc);
+ if (ret)
+ return ret;
+
+ /* not all drives have the same disc_info length, so requeue
+ * packet with the length the drive tells us it can supply
+ */
+ buflen = be16_to_cpu(di->disc_information_length) +
+ sizeof(di->disc_information_length);
+
+ if (buflen > sizeof(disc_information))
+ buflen = sizeof(disc_information);
+
+ cgc.cmd[8] = cgc.buflen = buflen;
+ ret = cdo->generic_packet(cdi, &cgc);
+ if (ret)
+ return ret;
+
+ /* return actual fill size */
+ return buflen;
+}
+
/* This macro makes sure we don't have to check on cdrom_device_ops
* existence in the run-time routines below. Change_capability is a
* hack to have the capability flags defined const, while we can still
@@ -3360,39 +3394,6 @@ int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
return -ENOSYS;
}
-/* requires CD R/RW */
-static int cdrom_get_disc_info(struct cdrom_device_info *cdi, disc_information *di)
-{
- struct cdrom_device_ops *cdo = cdi->ops;
- struct packet_command cgc;
- int ret, buflen;
-
- /* set up command and get the disc info */
- init_cdrom_command(&cgc, di, sizeof(*di), CGC_DATA_READ);
- cgc.cmd[0] = GPCMD_READ_DISC_INFO;
- cgc.cmd[8] = cgc.buflen = 2;
- cgc.quiet = 1;
-
- if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
-
- /* not all drives have the same disc_info length, so requeue
- * packet with the length the drive tells us it can supply
- */
- buflen = be16_to_cpu(di->disc_information_length) +
- sizeof(di->disc_information_length);
-
- if (buflen > sizeof(disc_information))
- buflen = sizeof(disc_information);
-
- cgc.cmd[8] = cgc.buflen = buflen;
- if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
-
- /* return actual fill size */
- return buflen;
-}
-
EXPORT_SYMBOL(cdrom_get_last_written);
EXPORT_SYMBOL(register_cdrom);
EXPORT_SYMBOL(unregister_cdrom);