diff options
author | Johannes Berg <johannes@sipsolutions.net> | 2008-07-25 08:45:33 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 17:53:27 (GMT) |
commit | 58340a07c194e0aed7bc58b61ff24330bb2a409f (patch) | |
tree | 907a53c71b3092e3a3a95c6641d4839e20214efd /arch/m32r | |
parent | e0ce0da9fefcc723dc006c35a7f91a32750abd40 (diff) | |
download | linux-fsl-qoriq-58340a07c194e0aed7bc58b61ff24330bb2a409f.tar.xz |
introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol
In many cases, especially in networking, it can be beneficial to know at
compile time whether the architecture can do unaligned accesses efficiently.
This patch introduces a new Kconfig symbol
HAVE_EFFICIENT_UNALIGNED_ACCESS
for that purpose and adds it to the powerpc and x86 architectures. Also add
some documentation about alignment and networking, and especially one intended
use of this symbol.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Ingo Molnar <mingo@elte.hu> [x86 architecture part]
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m32r')
0 files changed, 0 insertions, 0 deletions