From 8c22eb3a77373c616f141b56f44ef225ee15c96b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 8 Jul 2020 14:25:42 +0200 Subject: cdrom: remove the unused cdrom_media_changed function As well as the ->media_changed method. All these are left over from before the drivers were switched over to the check_events scheme. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- drivers/cdrom/cdrom.c | 28 +++++----------------------- 1 file changed, 5 insertions(+), 23 deletions(-) (limited to 'drivers/cdrom') diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index d82b3b7658bd..0c271b9e3c5b 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -605,7 +605,7 @@ int register_cdrom(struct gendisk *disk, struct cdrom_device_info *cdi) disk->cdi = cdi; ENSURE(cdo, drive_status, CDC_DRIVE_STATUS); - if (cdo->check_events == NULL && cdo->media_changed == NULL) + if (cdo->check_events == NULL) WARN_ON_ONCE(cdo->capability & (CDC_MEDIA_CHANGED | CDC_SELECT_DISC)); ENSURE(cdo, tray_move, CDC_CLOSE_TRAY | CDC_OPEN_TRAY); ENSURE(cdo, lock_door, CDC_LOCK); @@ -1419,8 +1419,6 @@ static int cdrom_select_disc(struct cdrom_device_info *cdi, int slot) if (cdi->ops->check_events) cdi->ops->check_events(cdi, 0, slot); - else - cdi->ops->media_changed(cdi, slot); if (slot == CDSL_NONE) { /* set media changed bits, on both queues */ @@ -1517,13 +1515,10 @@ int media_changed(struct cdrom_device_info *cdi, int queue) return ret; /* changed since last call? */ - if (cdi->ops->check_events) { - BUG_ON(!queue); /* shouldn't be called from VFS path */ - cdrom_update_events(cdi, DISK_EVENT_MEDIA_CHANGE); - changed = cdi->ioctl_events & DISK_EVENT_MEDIA_CHANGE; - cdi->ioctl_events = 0; - } else - changed = cdi->ops->media_changed(cdi, CDSL_CURRENT); + BUG_ON(!queue); /* shouldn't be called from VFS path */ + cdrom_update_events(cdi, DISK_EVENT_MEDIA_CHANGE); + changed = cdi->ioctl_events & DISK_EVENT_MEDIA_CHANGE; + cdi->ioctl_events = 0; if (changed) { cdi->mc_flags = 0x3; /* set bit on both queues */ @@ -1535,18 +1530,6 @@ int media_changed(struct cdrom_device_info *cdi, int queue) return ret; } -int cdrom_media_changed(struct cdrom_device_info *cdi) -{ - /* This talks to the VFS, which doesn't like errors - just 1 or 0. - * Returning "0" is always safe (media hasn't been changed). Do that - * if the low-level cdrom driver dosn't support media changed. */ - if (cdi == NULL || cdi->ops->media_changed == NULL) - return 0; - if (!CDROM_CAN(CDC_MEDIA_CHANGED)) - return 0; - return media_changed(cdi, 0); -} - /* Requests to the low-level drivers will /always/ be done in the following format convention: @@ -3464,7 +3447,6 @@ EXPORT_SYMBOL(unregister_cdrom); EXPORT_SYMBOL(cdrom_open); EXPORT_SYMBOL(cdrom_release); EXPORT_SYMBOL(cdrom_ioctl); -EXPORT_SYMBOL(cdrom_media_changed); EXPORT_SYMBOL(cdrom_number_of_slots); EXPORT_SYMBOL(cdrom_mode_select); EXPORT_SYMBOL(cdrom_mode_sense); -- cgit v1.2.3-59-g8ed1b