Revert "scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callb...
authorAndrea Parri (Microsoft) <parri.andrea@gmail.com>
Fri, 11 Dec 2020 13:14:04 +0000 (14:14 +0100)
committerMartin K. Petersen <martin.petersen@oracle.com>
Fri, 11 Dec 2020 14:56:17 +0000 (09:56 -0500)
commit4da3a54f5a025846f9930354cfb80f075b9952e0
tree8a38786ba8616f67f43b659c4a309545a3fa9d9a
parent359db63378eded1ee9c8c9ad72245f9b0158ae95
Revert "scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback()"

This reverts commit 3b8c72d076c42bf27284cda7b2b2b522810686f8.

Dexuan reported a regression where StorVSC fails to probe a device (and
where, consequently, the VM may fail to boot).  The root-cause analysis led
to a long-standing race condition that is exposed by the validation /commit
in question.  Let's put the new validation aside until a proper solution
for that race condition is in place.

Link: https://lore.kernel.org/r/20201211131404.21359-1-parri.andrea@gmail.com
Fixes: 3b8c72d076c4 ("scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback()")
Cc: Dexuan Cui <decui@microsoft.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/storvsc_drv.c