On 5/23/18 3:20 PM, Randy Dunlap wrote: > On 05/23/2018 02:14 PM, Jens Axboe wrote: >> On 5/23/18 2:52 PM, Kees Cook wrote: >>> On Wed, May 23, 2018 at 7:31 AM, Jens Axboe <axboe@xxxxxxxxx> wrote: >>>> On 5/23/18 8:25 AM, Christoph Hellwig wrote: >>>>> On Wed, May 23, 2018 at 08:13:56AM -0600, Jens Axboe wrote: >>>>>>> Should I move to code to a new drivers/scsi/scsi_sense.c and add it to >>>>>>> drivers/scsi/Makefile as: >>>>>>> >>>>>>> obj-$(CONFIG_BLK_SCSI_REQUEST) += scsi_sense.o >>>>>>> >>>>>>> Every place I want to use the code is already covered by >>>>>>> CONFIG_BLK_SCSI_REQUEST, so it seems like I just need to know where to >>>>>>> put the .c file. :P >>>>>> >>>>>> I think this is so much saner than a SCSI select or dependency, so I'll >>>>>> have to disagree with Martin and Christoph. Just put it in drivers/scsi, >>>>>> if it's the location they care about. >>>>> >>>>> I actually plan to remove CONFIG_BLK_SCSI_REQUEST in a merge window >>>>> or two. The only users are scsi and the ide layer, (virtio_blk >>>>> support has already been accidentally disabled for a while), and getting >>>>> rid of it allows to to shrink and simply the scsi data structures. >>>>> >>>>> But if you want this for now lets keep scsi_sense.c in drivers/scsi >>>>> but depend on CONFIG_BLK_SCSI_REQUEST, that is easy enough to fix up. >>>> >>>> It could be a stand-alone dependency, doesn't have to be BLK_SCSI_REQUEST. >>>> BLA_SCSI_SENSE or something would do. I don't care too much about that, >>>> mostly getting rid of the entire stack dependency. >>> >>> Aaand, I can't do this and leave it in drivers/scsi because of drivers/Makefile: >>> >>> obj-$(CONFIG_SCSI) += scsi/ >>> >>> So: this needs to live in block/ just like CONFIG_BLK_SCSI_REQUEST's >>> scsi_ioctl.c. I will split it into CONFIG_BLK_SCSI_SENSE, but I'll >>> still need to move the code from drivers/scsi/ to block/. Is this >>> okay? >> >> Ugh, so that would necessitate a change there too. As I said before, >> I don't really care where it lives. I know the SCSI folks seem bothered >> by moving it, but in reality, it's not like this stuff will likely ever >> really change. Of the two choices (select entire SCSI stack, or just move >> this little bit), I know what I would consider the saner option... >> > > or option 3: > > obj-y += scsi/ > > so that make descends into drivers/scsi/ and then builds whatever is needed, > depending on individual kconfig options. Right, that was the initial option, the later two are the other options. -- Jens Axboe
