Messages in this thread |  | | From | boyd@cbgbcs ... | Date | Fri, 27 Sep 1996 10:06:13 +0500 | Subject | Re: pre-2.1, AHA1542 fixes, WD7000 |
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Hi Eric!
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 >
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