On Wed, Jul 05, 2023 at 05:40:08PM +0100, Giovanni Cabiddu wrote: > Algorithms that do not set this flag will guarantee "will guarantee" => "guarantee" > that memory is not allocated during request processing, except in > the avoidable exception cases described below. "avoidable exception cases" => "exception cases" Whether they are avoidable depends on the user. > * Users can request an algorithm with this flag unset if they can't handle > * memory allocation failures or sleeping during request processing. Why add the "sleeping during request processing" part? Isn't that controlled on a per-request basis by CRYPTO_TFM_REQ_MAY_SLEEP which is a separate thing? > * They should also follow the constraints below. "should" => "must" > + * - The input and output scatterlists must have no more than 4 entries. > + * If the scatterlists contain more than 4 entries, the algorithm may > + * allocate memory. "If the scatterlists contains" => "If either scatterlist contains" Otherwise it is unclear whether this is talking about the length of each scatterlist individually, or the sum of their lengths. - Eric
