Re: [PATCH RESEND] dmaengine: ptdma: use consistent DMA masks

On Thu, 22 Feb 2024 17:30:53 +0100, Tadeusz Struk wrote:

The PTDMA driver sets DMA masks in two different places for the same device inconsistently. First call is in pt_pci_probe(), where it uses 48bit mask. The second call is in pt_dmaengine_register(), where it uses a 64bit mask. Using 64bit dma mask causes IO_PAGE_FAULT errors on DMA transfers between main memory and other devices. Without the extra call it works fine. Additionally the second call doesn't check the return value so it can silently fail. Remove the superfluous dma_set_mask() call and only use 48bit mask.

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Applied, thanks!

[1/1] dmaengine: ptdma: use consistent DMA masks commit: df2515a17914ecfc2a0594509deaf7fcb8d191ac

Best regards,