On Tue, May 22, 2018 at 4:34 PM, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > On 05/22/2018 04:31 PM, Kees Cook wrote: >> On Tue, May 22, 2018 at 12:16 PM, Jens Axboe <axboe@xxxxxxxxx> wrote: >>> On 5/22/18 1:13 PM, Christoph Hellwig wrote: >>>> On Tue, May 22, 2018 at 01:09:41PM -0600, Jens Axboe wrote: >>>>> I think Martin and Christoph are objecting to moving the code to >>>>> block/scsi_ioctl.h. I don't care too much about where the code is, but >>>>> think it would be nice to have the definitions in a separate header. But >>>>> if they prefer just pulling in all of SCSI for it, well then I guess >>>>> it's pointless to move the header bits. Seems very heavy handed to me, >>>>> though. >>>> >>>> It might be heavy handed for the 3 remaining users of drivers/ide, >>> >>> Brutal :-) >> >> Heh. I noticed a similar sense buffer use in drivers/cdrom/cdrom.c >> too. Is this okay under the same considerations? > > No. Do not select an entire subsystem. Use depends on it instead. I looked at that first, but it seems it's designed for that. For example, "config ATA" already has a "select SCSI". It does look fishy, though, since "config SCSI" has a "depends" which would be ignored by "select". Luckily, all these uses already do a "depends on BLOCK" (directly or indirectly). -Kees -- Kees Cook Pixel Security
