Re: [PATCH] vdpasim: protect concurrent access to iommu iotlb

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On Thu, Aug 13, 2020 at 04:25:50PM +0000, Sasha Levin wrote:
> Hi
> 
> [This is an automated email]
> 
> This commit has been processed because it contains a "Fixes:" tag
> fixing commit: .
> 
> The bot has tested the following trees: v5.8, v5.7.14, v5.4.57, v4.19.138, v4.14.193, v4.9.232, v4.4.232.
> 
> v5.8: Build OK!
> v5.7.14: Build OK!
> v5.4.57: Failed to apply! Possible dependencies:
>     2c53d0f64c06 ("vdpasim: vDPA device simulator")
>     961e9c84077f ("vDPA: introduce vDPA bus")
> 
> v4.19.138: Failed to apply! Possible dependencies:
>     2c53d0f64c06 ("vdpasim: vDPA device simulator")
>     961e9c84077f ("vDPA: introduce vDPA bus")
> 
> v4.14.193: Failed to apply! Possible dependencies:
>     2c53d0f64c06 ("vdpasim: vDPA device simulator")
>     7b95fec6d2ff ("virtio: make VIRTIO a menuconfig to ease disabling it all")
>     961e9c84077f ("vDPA: introduce vDPA bus")
> 
> v4.9.232: Failed to apply! Possible dependencies:
>     0d7f4f0594fc ("MAINTAINERS: update rmk's entries")
>     2c53d0f64c06 ("vdpasim: vDPA device simulator")
>     384fe7a4d732 ("drivers: net: xgene-v2: Add DMA descriptor")
>     3b3f9a75d931 ("drivers: net: xgene-v2: Add base driver")
>     404a5c392dcc ("MAINTAINERS: fix virtio file pattern")
>     51c5d8447bd7 ("MMC: meson: initial support for GX platforms")
>     6bc37fac30cf ("arm64: dts: add Allwinner A64 SoC .dtsi")
>     70dbd9b258d5 ("MAINTAINERS: Add entry for APM X-Gene SoC Ethernet (v2) driver")
>     7683e9e52925 ("Properly alphabetize MAINTAINERS file")
>     81ccd0cab29b ("drivers: net: xgene-v2: Add mac configuration")
>     872d1ba47bdc ("MAINTAINERS: Add Actions Semi Owl section")
>     87c586a6a0e1 ("MAINTAINERS: Update the Allwinner sunXi entry")
>     961e9c84077f ("vDPA: introduce vDPA bus")
>     b105bcdaaa0e ("drivers: net: xgene-v2: Add transmit and receive")
>     b26bff6e52d8 ("MAINTAINERS: Add device tree bindings to mv88e6xx section")
>     c0a6a5ae6b5d ("MAINTAINERS: copy virtio on balloon_compaction.c")
>     d5d4602e0405 ("Staging: iio: fix a MAINTAINERS entry")
>     dbaf0624ffa5 ("crypto: add virtio-crypto driver")
>     fd33f3eca6bf ("MAINTAINERS: Add maintainers for the meson clock driver")
> 
> v4.4.232: Failed to apply! Possible dependencies:
>     02038fd6645a ("crypto: Added Chelsio Menu to the Kconfig file")
>     06a8fc78367d ("VSOCK: Introduce virtio_vsock_common.ko")
>     2c53d0f64c06 ("vdpasim: vDPA device simulator")
>     404a5c392dcc ("MAINTAINERS: fix virtio file pattern")
>     433cd2c617bf ("crypto: rockchip - add crypto driver for rk3288")
>     6f99612e2500 ("tpm: Proxy driver for supporting multiple emulated TPMs")
>     961e9c84077f ("vDPA: introduce vDPA bus")
>     c0a6a5ae6b5d ("MAINTAINERS: copy virtio on balloon_compaction.c")
>     dbaf0624ffa5 ("crypto: add virtio-crypto driver")
> 
> 
> NOTE: The patch will not be queued to stable trees until it is upstream.
> 
> How should we proceed with this patch?

It's a simulator so I am not sure we need it at all.
Note there's a fix for this patch also upstrean, if it is
applied we need the fix too I think.

> -- 
> Thanks
> Sasha




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