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authorChristoph Hellwig <hch@lst.de>2021-10-21 08:06:07 +0200
committerJens Axboe <axboe@kernel.dk>2021-10-22 08:33:57 -0600
commit4845012eb5b4e56cadb5f484cb55dd4fd9d1df80 (patch)
tree68c123d53f414d86ce569ea7d84273d47da96362 /drivers/scsi/scsi_lib.c
parent4abafdc4360d993104c2b2f85943938a0c6ad025 (diff)
block: remove QUEUE_FLAG_SCSI_PASSTHROUGH
Export scsi_device_from_queue for use with pktcdvd and use that instead of the otherwise unused QUEUE_FLAG_SCSI_PASSTHROUGH queue flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20211021060607.264371-8-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index a0f801fc8943..9823b65d1536 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1967,6 +1967,14 @@ struct scsi_device *scsi_device_from_queue(struct request_queue *q)
return sdev;
}
+/*
+ * pktcdvd should have been integrated into the SCSI layers, but for historical
+ * reasons like the old IDE driver it isn't. This export allows it to safely
+ * probe if a given device is a SCSI one and only attach to that.
+ */
+#ifdef CONFIG_CDROM_PKTCDVD_MODULE
+EXPORT_SYMBOL_GPL(scsi_device_from_queue);
+#endif
/**
* scsi_block_requests - Utility function used by low-level drivers to prevent