linux-kernel - Re: [PATCH] iommu/dma: fix variable 'cookie' set but not used

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Message-ID: <20200107160308.GC5622@suse.de>
Date:   Tue, 7 Jan 2020 17:03:08 +0100
From:   Joerg Roedel <jroedel@...e.de>
To:     Qian Cai <cai@....pw>
Cc:     robin.murphy@....com, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iommu/dma: fix variable 'cookie' set but not used

On Mon, Jan 06, 2020 at 10:27:27AM -0500, Qian Cai wrote:
> The commit c18647900ec8 ("iommu/dma: Relax locking in
> iommu_dma_prepare_msi()") introduced a compliation warning,
> 
> drivers/iommu/dma-iommu.c: In function 'iommu_dma_prepare_msi':
> drivers/iommu/dma-iommu.c:1206:27: warning: variable 'cookie' set but
> not used [-Wunused-but-set-variable]
>   struct iommu_dma_cookie *cookie;
>                            ^~~~~~
> 
> Fixes: c18647900ec8 ("iommu/dma: Relax locking in iommu_dma_prepare_msi()")
> Signed-off-by: Qian Cai <cai@....pw>
> ---
>  drivers/iommu/dma-iommu.c | 3 ---
>  1 file changed, 3 deletions(-)

Applied for v5.5, thanks.