On Thu, Dec 09, 2021 at 08:38:57PM +0100, Pavel Machek wrote: > Hi! > > > > + memzero_explicit(kaddr, dice_rmem->size); > > > + devm_memunmap(dice_misc.this_device, kaddr); > > > > Do you really need to call memzero_explicit()? This isn't "local" > > memory, if the compiler "optimizes away" a normal call, it would be > > _VERY_ broken. > > For clearing secrets, I believe memzero_explicit is nice > documentation. Only if it's really needed please.
