Re: [PATCH 0/2] HID: amd_sfh: Minor DMA mapping bugfixes

[Basavaraj Natikar <bnatikar@amd.com>]

On 7/28/2021 3:03 PM, Jiri Kosina wrote:
> [CAUTION: External Email]
>
> [ dropping Sandeep, CCing Basavaraj ]
>
> On Wed, 28 Jul 2021, Jiri Kosina wrote:
>
>> On Mon, 21 Jun 2021, Dylan MacKenzie wrote:
>>
>>> While preparing to investigate
>>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugzilla.kernel.org%2Fshow_bug.cgi%3Fid%3D212615&data=04%7C01%7Cbasavaraj.natikar%40amd.com%7C2dff45d8dc964dbc5b1c08d951aab806%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637630615935776199%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=hGpNFpr6BjVg8dvfUTNF8Td1SOdtN5T8c2WACGAZWUo%3D&reserved=0, I read through the amd_sfh
>>> driver and saw two (unrelated) bugs in the logic that sets the DMA mask.
>>> Ultimately these are harmless, but they should probably get fixed.
>>>
>>> FYI, this is my first time submitting a kernel patch. If I've done something
>>> wrong in formatting this email, it is likely due to incompetence rather than
>>> malice.
>>>
>>> Dylan MacKenzie (2):
>>>   HID: amd_sfh: Set correct DMA mask
>>>   HID: amd_sfh: Continue if fallback DMA mask is accepted
>>>
>>>  drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 8 ++++++--
>>>  1 file changed, 6 insertions(+), 2 deletions(-)
>> Nehal, Sandeep, could you please provide your Ack to this series? Thanks,

I think, you can merge both of them together as it addresses a single problem. 
can you please respin a v2 with the changes something like this?

        privdata->mmio = pcim_iomap_table(pdev)[2];
        pci_set_master(pdev);
-       rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+
+       rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
        if (rc) {
-               rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-               return rc;
+               rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+               if (rc) {
+                       pci_err(pdev, "Failed to set DMA mask");
+                       return rc;
                 }
        }

Thanks,
Basavaraj