netdev - Re: [PATCH net 1/1] net/rds: dma_map_sg is entitled to merge entries

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Message-Id: <162932640671.7744.17327639180995052321.git-patchwork-notify@kernel.org>
Date:   Wed, 18 Aug 2021 22:40:06 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Gerd Rausch <gerd.rausch@...cle.com>
Cc:     santosh.shilimkar@...cle.com, davem@...emloft.net, kuba@...nel.org,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        rds-devel@....oracle.com
Subject: Re: [PATCH net 1/1] net/rds: dma_map_sg is entitled to merge entries

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Tue, 17 Aug 2021 10:04:37 -0700 you wrote:
> Function "dma_map_sg" is entitled to merge adjacent entries
> and return a value smaller than what was passed as "nents".
> 
> Subsequently "ib_map_mr_sg" needs to work with this value ("sg_dma_len")
> rather than the original "nents" parameter ("sg_len").
> 
> This old RDS bug was exposed and reliably causes kernel panics
> (using RDMA operations "rds-stress -D") on x86_64 starting with:
> commit c588072bba6b ("iommu/vt-d: Convert intel iommu driver to the iommu ops")
> 
> [...]

Here is the summary with links:
  - [net,1/1] net/rds: dma_map_sg is entitled to merge entries
    https://git.kernel.org/netdev/net/c/fb4b1373dcab

You are awesome, thank you!
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