On Wed, Dec 14, 2022 at 03:01:11PM +0800, Neal Liu wrote: > > +static u8 *aspeed_rsa_key_copy(u8 *src, size_t len) > +{ > + return kmemdup(src, len, GFP_DMA | GFP_KERNEL); Please explain why you are using GFP_DMA. Thanks, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt