Thus wrote Herbert Xu (herbert@xxxxxxxxxxxxxxxxxxx): > On Thu, Apr 27, 2023 at 08:53:55PM +0200, Martin Kaiser wrote: > > @@ -133,9 +133,7 @@ static int imx_rngc_read(struct hwrng *rng, void *data, size_t max, bool wait) > > break; > > /* how many random numbers are in FIFO? [0-16] */ > > - level = (status & RNGC_STATUS_FIFO_LEVEL_MASK) >> > > - RNGC_STATUS_FIFO_LEVEL_SHIFT; > > - > > + level = FIELD_GET(RNGC_STATUS_FIFO_LEVEL, status); > Wouldn't it be simpler to just get rid of the shift? Yes, we're only checking that level > 0, there's no need for the shift. I'll submit a new version of the patch. Thanks, Martin