On Thu, Dec 15, 2016 at 10:09 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > On Thu, Dec 15, 2016 at 07:50:36PM +0100, Jason A. Donenfeld wrote: >> There's no 32-bit platform >> that will trap on a 64-bit unaligned access because there's no such >> thing as a 64-bit access there. In short, we're fine. > > ARMv7 LPAE is a 32bit architecture that has 64bit load/stores IIRC. > > x86 has cmpxchg8b that can do 64bit things and very much wants the u64 > aligned. > > Also, IIRC we have a few platforms where u64 doesn't carry 8 byte > alignment, m68k or something like that, but yes, you likely don't care. Indeed, I stand corrected. But in any case, the use of __aligned(8) in the patchset ensures that things are fixed and that we don't have this issue. -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
