FUJITA Tomonori wrote: > Looks like that libata misuses dma_unmap_sg though I'm not familiar > with libata so I might completely misunderstand something. > > = > From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> > Subject: [PATCH] fix dma_unmap_sg misuse > > DMA-mapping.txt says: > > To unmap a scatterlist, just call: > > pci_unmap_sg(pdev, sglist, nents, direction); > > Again, make sure DMA activity has already finished. > > PLEASE NOTE: The 'nents' argument to the pci_unmap_sg call must be > the _same_ one you passed into the pci_map_sg call, > it should _NOT_ be the 'count' value _returned_ from the > pci_map_sg call. > > Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> Right, nice spotting. Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
