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Documentation: explain the difference between __bitwise and __bitwise__

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Simply added explanation from Al Viro in the following mail:
http://lkml.indiana.edu/hypermail/linux/kernel/0802.2/3164.html

Cc: Al Viro <[email protected]>
Cc:  Randy Dunlap <[email protected]>
Signed-off-by: Sam Ravnborg <[email protected]>
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Sam Ravnborg 2009-04-10 13:18:08 +02:00
commit 20375bf825
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Documentation/sparse.txt
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@ -42,6 +42,14 @@ sure that bitwise types don't get mixed up (little-endian vs big-endian
vs cpu-endian vs whatever), and there the constant "0" really _is_
special.
__bitwise__ - to be used for relatively compact stuff (gfp_t, etc.) that
is mostly warning-free and is supposed to stay that way. Warnings will
be generated without __CHECK_ENDIAN__.
__bitwise - noisy stuff; in particular, __le*/__be* are that. We really
don't want to drown in noise unless we'd explicitly asked for it.
Getting sparse
~~~~~~~~~~~~~~