On Thu, 2019-05-09 at 13:26 +0800, Herbert Xu wrote:
> On Wed, May 08, 2019 at 06:35:37PM +0800, Neal Liu wrote:
> > Hi Stephan,
> > We think the cast is fine, and it cannot guarantee the buf is
> > word-align.
> > I reference multiple rng driver's implementation and found it's common
> > usage for this. So it might be general usage for community. Is there any
> > suggestion that is more appropriate?
>
> If you don't know whether it's unaligned or not then you should
> do an unaligned operation.
Hi Stephan/Herbert,
My mistake. This buffer is allocated by kmalloc with larger than 32
bytes. So yes, it's word-align for sure.
reference:
https://elixir.bootlin.com/linux/latest/source/drivers/char/hw_random/core.c#L590
Thanks
Best Regards,
-Neal Liu
