| Message ID | 20231214063328.40657-1-manivannan.sadhasivam@linaro.org |
|---|---|
| State | Accepted |
| Commit | 327ec5f70609cf00c6f961073c01857555c6a8eb |
| Headers | show |
| Series | PCI: epf-mhi: Fix the DMA data direction of dma_unmap_single() | expand |
On Fri, Dec 15, 2023 at 04:35:21AM +0900, Krzysztof Wilczyński wrote: > Hello, > > > In the error path of pci_epf_mhi_edma_write() function, the DMA data > > direction passed (DMA_FROM_DEVICE) doesn't match the actual direction used > > for the data transfer. Fix it by passing the correct one (DMA_TO_DEVICE). > > Nice catch! > > > Fixes: 7b99aaaddabb ("PCI: epf-mhi: Add eDMA support") > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > --- > > > > Bjorn, Krzysztof, I'd like to apply this patch to MHI tree on top of eDMA > > async patches due to dependency: > > https://lore.kernel.org/linux-pci/20231127124529.78203-1-manivannan.sadhasivam@linaro.org/ > > Sounds good to me! We still have a little time, so let me know if you > change your mind about who should take this patch and the other series. :) > No change in plan :) > > drivers/pci/endpoint/functions/pci-epf-mhi.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c > > index 472bc489b754..d3d6a1054036 100644 > > --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c > > +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c > > @@ -424,7 +424,7 @@ static int pci_epf_mhi_edma_write(struct mhi_ep_cntrl *mhi_cntrl, > > } > > > > err_unmap: > > - dma_unmap_single(dma_dev, src_addr, buf_info->size, DMA_FROM_DEVICE); > > + dma_unmap_single(dma_dev, src_addr, buf_info->size, DMA_TO_DEVICE); > > err_unlock: > > mutex_unlock(&epf_mhi->lock); > > Looks good! > > Reviewed-by: Krzysztof Wilczyński <kw@linux.com> > Thanks! Applied to mhi-next. - Mani > Krzysztof
diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c index 472bc489b754..d3d6a1054036 100644 --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c @@ -424,7 +424,7 @@ static int pci_epf_mhi_edma_write(struct mhi_ep_cntrl *mhi_cntrl, } err_unmap: - dma_unmap_single(dma_dev, src_addr, buf_info->size, DMA_FROM_DEVICE); + dma_unmap_single(dma_dev, src_addr, buf_info->size, DMA_TO_DEVICE); err_unlock: mutex_unlock(&epf_mhi->lock);
In the error path of pci_epf_mhi_edma_write() function, the DMA data direction passed (DMA_FROM_DEVICE) doesn't match the actual direction used for the data transfer. Fix it by passing the correct one (DMA_TO_DEVICE). Fixes: 7b99aaaddabb ("PCI: epf-mhi: Add eDMA support") Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- Bjorn, Krzysztof, I'd like to apply this patch to MHI tree on top of eDMA async patches due to dependency: https://lore.kernel.org/linux-pci/20231127124529.78203-1-manivannan.sadhasivam@linaro.org/ drivers/pci/endpoint/functions/pci-epf-mhi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) base-commit: f5668f251e29292326e45a022f933c15740a8af2