Re: [PATCH v2 17/30] scsi: Define usercopy region in scsi_sense_cache slab cache

From: Kees Cook
Date: Mon Aug 28 2017 - 17:52:20 EST


On Mon, Aug 28, 2017 at 2:42 PM, Bart Van Assche <Bart.VanAssche@xxxxxxx> wrote:
> On Mon, 2017-08-28 at 14:34 -0700, Kees Cook wrote:
>> diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
>> index f6097b89d5d3..f1c6bd56dd5b 100644
>> --- a/drivers/scsi/scsi_lib.c
>> +++ b/drivers/scsi/scsi_lib.c
>> @@ -77,14 +77,15 @@ int scsi_init_sense_cache(struct Scsi_Host *shost)
>> if (shost->unchecked_isa_dma) {
>> scsi_sense_isadma_cache =
>> kmem_cache_create("scsi_sense_cache(DMA)",
>> - SCSI_SENSE_BUFFERSIZE, 0,
>> - SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA, NULL);
>> + SCSI_SENSE_BUFFERSIZE, 0,
>> + SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA, NULL);
>> if (!scsi_sense_isadma_cache)
>> ret = -ENOMEM;
>
> All this part of this patch does is to change source code indentation. Should
> these changes really be included in this patch?

I can certainly drop that hunk, but the existing alignment is really
ugly. :) Happy to do whatever.

-Kees

--
Kees Cook
Pixel Security