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author | Sam Ravnborg <sam@ravnborg.org> | 2009-04-10 07:18:08 -0400 |
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committer | Sam Ravnborg <sam@ravnborg.org> | 2009-04-11 02:18:11 -0400 |
commit | 20375bf82567b5fecd331048c6cc1fc292b67710 (patch) | |
tree | 1dc36f316f8e8d27d282f6cea6cf5adc97531b65 | |
parent | 5d7d18f5bc507b60d3d8967e2739d5e6ffdd630f (diff) |
Documentation: explain the difference between __bitwise and __bitwise__
Simply added explanation from Al Viro in the following mail:
http://lkml.indiana.edu/hypermail/linux/kernel/0802.2/3164.html
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
-rw-r--r-- | Documentation/sparse.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/sparse.txt b/Documentation/sparse.txt index 42f43fa59f24..34c76a55bc04 100644 --- a/Documentation/sparse.txt +++ b/Documentation/sparse.txt | |||
@@ -42,6 +42,14 @@ sure that bitwise types don't get mixed up (little-endian vs big-endian | |||
42 | vs cpu-endian vs whatever), and there the constant "0" really _is_ | 42 | vs cpu-endian vs whatever), and there the constant "0" really _is_ |
43 | special. | 43 | special. |
44 | 44 | ||
45 | __bitwise__ - to be used for relatively compact stuff (gfp_t, etc.) that | ||
46 | is mostly warning-free and is supposed to stay that way. Warnings will | ||
47 | be generated without __CHECK_ENDIAN__. | ||
48 | |||
49 | __bitwise - noisy stuff; in particular, __le*/__be* are that. We really | ||
50 | don't want to drown in noise unless we'd explicitly asked for it. | ||
51 | |||
52 | |||
45 | Getting sparse | 53 | Getting sparse |
46 | ~~~~~~~~~~~~~~ | 54 | ~~~~~~~~~~~~~~ |
47 | 55 | ||