From 3239479ed420eb67538c8411342ae973df56e857 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 24 Jul 2021 09:20:10 +0200
Subject: [PATCH] scsi: bsg: Remove support for SCSI_IOCTL_SEND_COMMAND
Git-commit: beec64d0c9749afedf51c3c10cf52de1d9a89cc0
Patch-mainline: v5.15-rc1
References: stable-5.14.6
[ Upstream commit beec64d0c9749afedf51c3c10cf52de1d9a89cc0 ]
SCSI_IOCTL_SEND_COMMAND has been deprecated longer than bsg exists and has
been warning for just as long. More importantly it harcodes SCSI CDBs and
thus will do the wrong thing on non-SCSI bsg nodes.
Link: https://lore.kernel.org/r/20210724072033.1284840-2-hch@lst.de
Fixes: aa387cc89567 ("block: add bsg helper library")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
block/bsg.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/block/bsg.c b/block/bsg.c
index 1f196563ae6c..79b42c5cafeb 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -373,10 +373,13 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case SG_GET_RESERVED_SIZE:
case SG_SET_RESERVED_SIZE:
case SG_EMULATED_HOST:
- case SCSI_IOCTL_SEND_COMMAND:
return scsi_cmd_ioctl(bd->queue, NULL, file->f_mode, cmd, uarg);
case SG_IO:
return bsg_sg_io(bd->queue, file->f_mode, uarg);
+ case SCSI_IOCTL_SEND_COMMAND:
+ pr_warn_ratelimited("%s: calling unsupported SCSI_IOCTL_SEND_COMMAND\n",
+ current->comm);
+ return -EINVAL;
default:
return -ENOTTY;
}
--
2.26.2