Messages in this thread | | | From | Roman Zippel <> | Subject | Re: [PATCH] introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol | Date | Tue, 8 Apr 2008 21:11:33 +0200 |
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Hi,
On Tuesday 8. April 2008, Johannes Berg wrote:
> 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.
Please CC linux-arch@vger.kernel.org for such changes, so it's more likely noticed by more arch maintainers, so a list can be compiled what is appropriate for the various archs. The scope of this symbol is IMO a little unclear, is it intended for one-time accesses to small object or also for repeated accesses to larger objects? Anyway, this probably should be set for m68k as well.
bye, Roman
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