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Subject: Re: [PATCH] iommu: exynos: remove unneeded local variable
 initialization
To:     Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
        iommu@lists.linux-foundation.org,
        linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
From:   Marek Szyprowski <m.szyprowski@samsung.com>
Message-ID: <2a00f957-1f19-f398-ae18-908d8a17375d@samsung.com>
Date:   Fri, 9 Apr 2021 14:17:43 +0200
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References: <CGME20210408201630eucas1p25551bcecf0073ac0361cfc03a4ef124a@eucas1p2.samsung.com>
        <20210408201622.78009-1-krzysztof.kozlowski@canonical.com>
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On 08.04.2021 22:16, Krzysztof Kozlowski wrote:
> The initialization of 'fault_addr' local variable is not needed as it is
> shortly after overwritten.
>
> Addresses-Coverity: Unused value
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>

> ---
>   drivers/iommu/exynos-iommu.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
> index de324b4eedfe..8fa9a591fb96 100644
> --- a/drivers/iommu/exynos-iommu.c
> +++ b/drivers/iommu/exynos-iommu.c
> @@ -407,7 +407,7 @@ static irqreturn_t exynos_sysmmu_irq(int irq, void *dev_id)
>   	struct sysmmu_drvdata *data = dev_id;
>   	const struct sysmmu_fault_info *finfo;
>   	unsigned int i, n, itype;
> -	sysmmu_iova_t fault_addr = -1;
> +	sysmmu_iova_t fault_addr;
>   	unsigned short reg_status, reg_clear;
>   	int ret = -ENOSYS;
>   

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland