Messages in this thread | | | Date | Thu, 18 Jun 2015 09:41:32 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH v7 05/14] crypto: marvell/CESA: add TDMA support |
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On Wed, Jun 17, 2015 at 05:34:02PM +0200, Boris Brezillon wrote: > > I can check for that too, but note that it doesn't prevent one from > providing different scatterlist structures pointing to the same memory > region.
Pointing to the same memory should be fine, it's the act of passing the same SG list to dma_map_sg twice that's wrong because dma_map_sg will modify the SG list.
Cheers, -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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