From: Fenghua Yu <fenghua.yu@intel.com>
To: 'Guanjun' <guanjun@linux.alibaba.com>, <dave.jiang@intel.com>,
<dmaengine@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<vkoul@kernel.org>, <tony.luck@intel.com>
Cc: <jing.lin@intel.com>, <ashok.raj@intel.com>,
<sanjay.k.kumar@intel.com>, <megha.dey@intel.com>,
<jacob.jun.pan@intel.com>, <yi.l.liu@intel.com>,
<tglx@linutronix.de>
Subject: Re: [PATCH v1 1/2] dmaengine: idxd: Protect int_handle field in hw descriptor
Date: Mon, 30 Oct 2023 11:56:09 -0700 [thread overview]
Message-ID: <02c203a2-7f71-efb9-5fbe-bc753de21ff5@intel.com> (raw)
In-Reply-To: <20231029080049.1482701-2-guanjun@linux.alibaba.com>
On 10/29/23 01:00, 'Guanjun' wrote:
> From: Guanjun <guanjun@linux.alibaba.com>
>
> The int_handle field in hw descriptor should also be protected
> by wmb() before possibly triggering a DMA read.
>
> Signed-off-by: Guanjun <guanjun@linux.alibaba.com>
As Dave said, need to add fixes tag.
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Thanks.
-Fenghua Yu
next prev parent reply other threads:[~2023-10-30 18:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-29 8:00 [PATCH v1 0/2] Some fixes for idxd driver 'Guanjun'
2023-10-29 8:00 ` [PATCH v1 1/2] dmaengine: idxd: Protect int_handle field in hw descriptor 'Guanjun'
2023-10-30 15:58 ` Dave Jiang
2023-10-30 18:56 ` Fenghua Yu [this message]
2023-10-29 8:00 ` [PATCH v1 2/2] dmaengine: idxd: Fix the incorrect descriptions 'Guanjun'
2023-10-30 16:00 ` Dave Jiang
2023-10-30 19:20 ` Fenghua Yu
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