block: split scsi_request out of struct request
And require all drivers that want to support BLOCK_PC to allocate it
as the first thing of their private data. To support this the legacy
IDE and BSG code is switched to set cmd_size on their queues to let
the block layer allocate the additional space.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index 247853e..c3062b5 100644
--- a/drivers/ide/sis5513.c
+++ b/drivers/ide/sis5513.c
@@ -54,7 +54,7 @@
#define DRV_NAME "sis5513"
/* registers layout and init values are chipset family dependent */
-
+#undef ATA_16
#define ATA_16 0x01
#define ATA_33 0x02
#define ATA_66 0x03