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SubjectRe: [PATCH] lib: scatterlist: Fix to support no mapped sg
Zhou Wang <> writes:

> In function sg_split, the second sg_calculate_split will return -EINVAL
> when in_mapped_nents is 0.
> Indeed there is no need to do second sg_calculate_split and sg_split_mapped
> when in_mapped_nents is 0, as in_mapped_nents indicates no mapped entry in
> original sgl.
> Signed-off-by: Zhou Wang <>
That's right. May I know what is the usecase which led you to this fix ?

Acked-by: Robert Jarzmik <>


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