On Wed, Jun 17, 2015 at 03:32:02PM +0200, Boris Brezillon wrote: > > Hi Herbert, > > I send you this patch alone so that you can verify I'm now properly > manipulating the SG list. Once I have your confirmation I'll send > the whole series again and annoy all the people in Cc one more time > ;-). Thanks. The only problem that I can see is the fact you're not checking for req->src == req->dst. If they're equal then you must not map it twice. Instead it should be mapped as DMA_BIDIRECTIONAL. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html