Re: DAC960 in 2.5.38, with new changes

From: David S. Miller (
Date: Mon Sep 23 2002 - 16:28:21 EST

   From: David Mosberger <>
   Date: Mon, 23 Sep 2002 14:33:46 -0700

>>>>> On Mon, 23 Sep 2002 23:31:13 +0200, Daniel Phillips <> said:
     Daniel> Why attempt to write 8 bytes on ia32 when only 4 are needed?
   Even on ia32 you'll need 8 bytes if the controller is operated in DAC
   mode (which is what you want for a machine with >4GB of memory), no?
Right. But if we know the top 32-bits will always be zero (f.e. if
CONFIG_HIGHMEM is disabled on x86) one might want to optimize this
to avoid the first 32-bit store.
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