Re: [PATCH v4 5/6] bus: mhi: pci_generic: Set register access length for MHI driver
From: Manivannan Sadhasivam <hidden>
Date: 2021-05-21 13:52:28
Also in:
ath11k, linux-arm-msm, lkml
On Thu, May 06, 2021 at 12:51:44PM -0700, Bhaumik Bhatt wrote:
MHI driver requires register space length to add range checks and prevent memory region accesses outside of that for MMIO space. Set it from the PCI generic controller driver before registering the MHI controller. Signed-off-by: Bhaumik Bhatt <redacted> Reviewed-by: Hemant Kumar <redacted> Reviewed-by: Loic Poulain <redacted>
Reviewed-by: Manivannan Sadhasivam <redacted> Thanks, Mani
quoted hunk ↗ jump to hunk
--- drivers/bus/mhi/pci_generic.c | 1 + 1 file changed, 1 insertion(+)diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index 7c810f0..fb7889f 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c@@ -463,6 +463,7 @@ static int mhi_pci_claim(struct mhi_controller *mhi_cntrl, return err; } mhi_cntrl->regs = pcim_iomap_table(pdev)[bar_num]; + mhi_cntrl->reg_len = pci_resource_len(pdev, bar_num); err = pci_set_dma_mask(pdev, dma_mask); if (err) {-- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project