Messages in this thread | | | Date | Thu, 20 Mar 2008 14:39:08 +0000 | From | "Will Newton" <> | Subject | Re: [PATCH/RFC] introduce ARCH_CAN_UNALIGNED_ACCESS Kconfig symbol |
| |
On Thu, Mar 20, 2008 at 2:34 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> +For some ethernet hardware that cannot DMA to unaligned addresses like > +4*n+2 or non-ethernet hardware, this can be a problem, and it is then > +required to copy the incoming frame into an aligned buffer. Because this is > +unnecessary on architectures that can do unaligned accesses, the code can be > +made depend on CONFIG_ARCH_CAN_UNALIGNED_ACCESS like so: > + > +#ifdef CONFIG_ARCH_CAN_UNALIGNED_ACCESS > + skb = copy skb > +#else > + skb = original skb > +#endif
Is this logic reversed?
| |