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| author | David Brownell <david-b@pacbell.net> | 2007-07-19 10:47:52 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-19 19:04:43 +0200 |
| commit | a0a9983509f45b2225ca87fdcf7b40ea916834ed (patch) | |
| tree | a70151c57f184bccd24175fa19a585021e297973 /security | |
| parent | unregister_chrdev() return void (diff) | |
| download | linux-a0a9983509f45b2225ca87fdcf7b40ea916834ed.tar.xz linux-a0a9983509f45b2225ca87fdcf7b40ea916834ed.zip | |
gpio calls don't need i/o barriers
Clarify that drivers using the GPIO operations don't need to issue io
barrier instructions themselves. Previously this wasn't clear, and at
least one platform assumed otherwise (and would thus break various
otherwise-portable drivers which don't issue barriers).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions