linux-kernel - Re: [PATCH] iommu/vt-d: Fix unused invalidation hint in qi_desc

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Message-ID: <36cd3953-80fe-4605-ad2d-881440f92f3c@linux.intel.com>
Date: Tue, 18 Nov 2025 09:53:26 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Aashish Sharma <aashish@...hishsharma.net>,
 Vineeth Pillai <vineeth@...byteword.org>, Dmytro Maluka
 <dmaluka@...gle.com>, David Woodhouse <dwmw2@...radead.org>,
 Joerg Roedel <joro@...tes.org>, Tina Zhang <tina.zhang@...el.com>
Cc: Robin Murphy <robin.murphy@....com>, iommu@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Aashish Sharma <shraash@...gle.com>
Subject: Re: [PATCH] iommu/vt-d: Fix unused invalidation hint in qi_desc_iotlb

On 10/9/25 09:09, Aashish Sharma wrote:
> Invalidation hint (ih) in the function 'qi_desc_iotlb' is
> initialized to zero and never used. It is embedded in the 0th bit
> of the 'addr' parameter. Get the correct 'ih' value from there.
> 
> Fixes: f701c9f36bcb ("iommu/vt-d: Factor out invalidation descriptor composition")
> Signed-off-by: Aashish Sharma<aashish@...hishsharma.net>
> ---
>   drivers/iommu/intel/iommu.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Queued for v6.19-rc1. Thanks!