On Mon, Oct 26, 2020 at 05:23:48AM +0000, Parav Pandit wrote:
Hi Christoph,
quoted
From: Jakub Kicinski <kuba@kernel.org>
Sent: Saturday, October 24, 2020 11:45 PM
CC: rdma, looks like rdma from the stack trace
On Fri, 23 Oct 2020 20:07:17 -0700 syzbot wrote:
quoted
syzbot has found a reproducer for the following issue on:
HEAD commit: 3cb12d27 Merge tag 'net-5.10-rc1' of git://git.kernel.org/..
In [1] you mentioned that dma_mask should not be set for dma_virt_ops.
So patch [2] removed it.
But check to validate the dma mask for all dma_ops was added in [3].
What is the right way? Did I misunderstood your comment about dma_mask in [1]?
No, I did not say we don't need the mask. I said copying over the
various dma-related fields from the parent is bogus.
I think rxe (and ther other drivers/infiniband/sw drivers) need a simple
dma_coerce_mask_and_coherent and nothing else.