From: Christoph Hellwig hch@lst.de
[ Upstream commit 144ec97493af34efdb77c5aba146e9c7de8d0a06 ]
Instead of relying on the now removed NULL argument to pci_alloc_consistent, switch to the generic DMA API, and store the struct device so that we can pass it.
Fixes: 4167b2ad5182 ("PCI: Remove NULL device handling from PCI DMA API") Reported-by: Matthew Whitehead tedheadster@gmail.com Signed-off-by: Christoph Hellwig hch@lst.de Tested-by: Matthew Whitehead tedheadster@gmail.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/aic7xxx/aic7770_osm.c | 1 + drivers/scsi/aic7xxx/aic7xxx.h | 1 + drivers/scsi/aic7xxx/aic7xxx_osm.c | 10 ++++------ drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 1 + 4 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c index 3d401d02c019..bdd177e3d762 100644 --- a/drivers/scsi/aic7xxx/aic7770_osm.c +++ b/drivers/scsi/aic7xxx/aic7770_osm.c @@ -91,6 +91,7 @@ aic7770_probe(struct device *dev) ahc = ahc_alloc(&aic7xxx_driver_template, name); if (ahc == NULL) return (ENOMEM); + ahc->dev = dev; error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data, eisaBase); if (error != 0) { diff --git a/drivers/scsi/aic7xxx/aic7xxx.h b/drivers/scsi/aic7xxx/aic7xxx.h index 4ce4e903a759..7f6e83296dfa 100644 --- a/drivers/scsi/aic7xxx/aic7xxx.h +++ b/drivers/scsi/aic7xxx/aic7xxx.h @@ -949,6 +949,7 @@ struct ahc_softc { * Platform specific device information. */ ahc_dev_softc_t dev_softc; + struct device *dev;
/* * Bus specific device information. diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index c6be3aeb302b..306d0bf33478 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -861,8 +861,8 @@ int ahc_dmamem_alloc(struct ahc_softc *ahc, bus_dma_tag_t dmat, void** vaddr, int flags, bus_dmamap_t *mapp) { - *vaddr = pci_alloc_consistent(ahc->dev_softc, - dmat->maxsize, mapp); + /* XXX: check if we really need the GFP_ATOMIC and unwind this mess! */ + *vaddr = dma_alloc_coherent(ahc->dev, dmat->maxsize, mapp, GFP_ATOMIC); if (*vaddr == NULL) return ENOMEM; return 0; @@ -872,8 +872,7 @@ void ahc_dmamem_free(struct ahc_softc *ahc, bus_dma_tag_t dmat, void* vaddr, bus_dmamap_t map) { - pci_free_consistent(ahc->dev_softc, dmat->maxsize, - vaddr, map); + dma_free_coherent(ahc->dev, dmat->maxsize, vaddr, map); }
int @@ -1124,8 +1123,7 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa
host->transportt = ahc_linux_transport_template;
- retval = scsi_add_host(host, - (ahc->dev_softc ? &ahc->dev_softc->dev : NULL)); + retval = scsi_add_host(host, ahc->dev); if (retval) { printk(KERN_WARNING "aic7xxx: scsi_add_host failed\n"); scsi_host_put(host); diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c index 0fc14dac7070..717d8d1082ce 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c @@ -250,6 +250,7 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } } ahc->dev_softc = pci; + ahc->dev = &pci->dev; error = ahc_pci_config(ahc, entry); if (error != 0) { ahc_free(ahc);