linux-kernel - Re: [PATCH v2 00/10] dmaengine: idxd: Memory leak and FLR fixes

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Message-ID: <871pmxkqqf.fsf@intel.com>
Date: Mon, 20 Oct 2025 18:06:48 -0700
From: Vinicius Costa Gomes <vinicius.gomes@...el.com>
To: Dave Jiang <dave.jiang@...el.com>, Vinod Koul <vkoul@...nel.org>, Dan
 Williams <dan.j.williams@...el.com>
Cc: dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/10] dmaengine: idxd: Memory leak and FLR fixes

Hi Vinod,

Vinicius Costa Gomes <vinicius.gomes@...el.com> writes:

> Hi,
>
> During testing some not so happy code paths in a debugging (lockdep,
> kmemleak, etc) kernel, found a few issues.
>
> There's still a crash that happens when doing a PCI unbind, but I
> don't have a patch at this time.
>
> Cheers,
>
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
> ---
> Changes in v2:
> - Fixed messing up the definition of FLR (Function Level
>   Reset) (Nathan Lynch)
> - Simplified callers of idxd_device_config(), moved a common check,
>   and locking to inside the function (Dave Jiang);
> - For idxd DMA backend, ->terminate_all() now flushes all pending
>   descriptors (Dave Jiang);
> - For idxd DMA backend, ->device_synchronize() now waits for submitted
>   operations to finish (Dave Jiang);
> - Link to v1: https://lore.kernel.org/r/20250804-idxd-fix-flr-on-kernel-queues-v3-v1-0-4e020fbf52c1@intel.com
>

Gentle ping. If anything is missing/could be improved, glad to fix.


Cheers,
-- 
Vinicius