Re: [PATCH v2 0/9] block: Consolidate scsi sense buffer usage

From: Kees Cook
Date: Thu Aug 02 2018 - 17:56:54 EST


On Thu, Aug 2, 2018 at 2:24 PM, Jens Axboe <axboe@xxxxxxxxx> wrote:
> On 7/31/18 1:51 PM, Kees Cook wrote:
>> This is a follow-up to commit f7068114d45e ("sr: pass down correctly
>> sized SCSI sense buffer") which further cleans up and removes needless
>> sense character array buffers and "struct request_sense" usage in favor
>> of the common "struct scsi_sense_hdr".
>>
>> First, drop a bunch of unused sense buffers:
>> [PATCH 1/9] ide-cd: Drop unused sense buffers
>> [PATCH 2/9] scsi: cxlflash: Drop unused sense buffers
>>
>> Next, allow the sense buffer to be usable outside SCSI tree:
>> [PATCH 3/9] scsi: build scsi_common.o for all scsi passthrough request users
>> [PATCH 4/9] target: don't depend on SCSI
>>
>> Then move all request_sense usage to scsi_sense_hdr:
>> [PATCH 5/9] block: Switch struct packet_command to use struct scsi_sense_hdr
>>
>> And do some further cleanups for scsi_sense_hdr now that we can:
>> [PATCH 6/9] ide-cd: Remove redundant sense buffer
>> [PATCH 7/9] cdrom: Use struct scsi_sense_hdr internally
>>
>> Finally add a build-time check to make sure we don't pass bad buffer sizes:
>> [PATCH 8/9] libata-scsi: Move sense buffers onto stack
>> [PATCH 9/9] scsi: Check sense buffer size at build time
>
> Thanks Kees, applied for 4.19. Note that I hand applied patch #5 and #9,
> since they did not apply directly to the block tree.

Thanks; I appreciate that. I think I was based on v4.18-rc2 or something.

-Kees

--
Kees Cook
Pixel Security