Re: write[blw] vs memcpy?
Linus Torvalds (torvalds@transmeta.com)
5 Apr 1998 20:07:39 GMT
In article <19980405065957.44075@hazel>,
Raul Miller <rdm@test.legislate.com> wrote:
>ralf@uni-koblenz.de <ralf@uni-koblenz.de> wrote:
>
>> Finally there is no need to rely on {read,write}[bwl]. There are special
>> purpose I/O copy functions available, memset_io(), memcpy_fromio() and
>> memcpy_toio() which will do the job efficient and portable.
>
>Oops, I saw those, and foolishly thought that they had to do with io
>port space. [Please: nobody post to tell me just how dumb I was to
>think this: I know that address space is too limited to warrant such
>mechanisms.]
Argh, I agree that maybe the naming isn't the best one. I never even
thought of the confusion issue, but you're right, they are not well
named. I should at least add a comment on this (although they _are_
documented in IO-mapping.txt - maybe we should just make some of the
documentation more well-known).
Linus
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