On Fri, Mar 04, 2022 at 02:30:06PM +0100, Corentin Labbe wrote: > > Hello > > I got: > [ 17.563793] ------------[ cut here ]------------ > [ 17.568492] DMA-API: ccree e6601000.crypto: device driver frees DMA memory with different direction [device address=0x0000000078fe5800] [size=8 bytes] [mapped with DMA_TO_DEVICE] [unmapped with DMA_BIDIRECTIONAL] The direction argument during unmap must match whatever direction you used during the original map call. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
