[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 0/1] pci: pass along the return value of dma_memory_rw
From: |
Klaus Birkelund |
Subject: |
Re: [PATCH 0/1] pci: pass along the return value of dma_memory_rw |
Date: |
Wed, 23 Oct 2019 21:59:27 +0200 |
User-agent: |
Mutt/1.12.2 (2019-09-21) |
On Fri, Oct 11, 2019 at 09:01:40AM +0200, Klaus Jensen wrote:
> Hi,
>
> While working on fixing the emulated nvme device to pass more tests in
> the blktests suite, I discovered that the pci_dma_rw function ignores
> the return value of dma_memory_rw.
>
> The nvme device needs to handle DMA errors gracefully in order to pass
> the block/011 test ("disable PCI device while doing I/O") in the
> blktests suite. This is only possible if the device knows if the DMA
> transfer was successful or not.
>
> I can't see what the reason for ignoring the return value would be. But
> if there is a good reason, please enlighten me :)
>
>
> Klaus Jensen (1):
> pci: pass along the return value of dma_memory_rw
>
> include/hw/pci/pci.h | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> --
> 2.23.0
>
Gentle ping.
https://patchwork.kernel.org/patch/11184911/