Sorry I don't know what this is about - I haven't been keeping up with
Linux lately. My system hasn't even been hooked up for the last two
months.
FYI, I'm no longer at OSU. I graduated this past spring (Ph.D.) and I'm
now at Lucent Technologies in Columbus. My email address is
boyd@cbgbcs.cb.lucent.com.
Anyway, I'll be glad to help if there are specific questions about the
wd7000 code you can't answer (although I can't imagine that...), if you
can give me a little context about what the discussion has been about.
Nice hearing from you... 8^)
-John
>
>>One thing worries me, accessing the cdrom using workbone resulted in a
>>zero buff address and a non-zero length, hence the "buff && SCSI_PA"
>>around line 654. Eric, is this sensible? Also is the test "if
>>(SCSI_PA(shpnt+1) > ISA_DMA_THRESHOLD)" around line 953 still needed since
>>kmalloc supports DMA?
>
> Both of these tests are really just sanity checks. The one at
>953 was there because there was a time when kmalloc didn't have the GFP_DMA
>flag. I guess the test could be removed, but if it were me I would probably
>leave it just as another sanity check.
>
> The zero buffer address is most likely caused by a command that
>had no data transfer (i.e. TEST_UNIT_READY or something like it). Just
>an offhand guess.
>
>-Eric
>