On 9/8/2014 1:50 AM, James Bottomley wrote:
Actual alignment is pretty irrelevant. That's why all architectures which require alignment also have to implement misaligned traps ... this is a fundamental requirement of the networking code, for instance.
Can you clarify what you think the requirement is? The tile architecture doesn't support misaligned load/store in general, but we do support it for userspace (using a nifty JIT approach with a direct-map hash table kept in userspace), and also for get_user/put_user. But that's it, and, the networking subsystem works fine for us. Occasionally we report bugs for driver code that doesn't use the get_unaligned_xxx() macros and friends, and our fixes are generally taken upstream. -- Chris Metcalf, Tilera Corp. http://www.tilera.com -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
