From: Julien Grall Date: Fri, 2 Apr 2021 15:51:06 +0000 (+0100) Subject: xen/iommu: smmu: Silence clang in arm_smmu_device_dt_probe() X-Git-Tag: archive/raspbian/4.16.0+51-g0941d6cb-1+rpi1~2^2~42^2~697 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=264aa183ad85b2779b27d1312724a291259ccc9f;p=xen.git xen/iommu: smmu: Silence clang in arm_smmu_device_dt_probe() Clang 11 will throw the following error: smmu.c:2284:18: error: cast to smaller integer type 'enum arm_smmu_arch_version' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] smmu->version = (enum arm_smmu_arch_version)of_id->data; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The error can be prevented by initially casting to (uintptr_t) and then enum. Signed-off-by: Julien Grall Acked-by: Stefano Stabellini --- diff --git a/xen/drivers/passthrough/arm/smmu.c b/xen/drivers/passthrough/arm/smmu.c index 20ac672e91..fab7be8b48 100644 --- a/xen/drivers/passthrough/arm/smmu.c +++ b/xen/drivers/passthrough/arm/smmu.c @@ -2382,7 +2382,7 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev) smmu->dev = dev; of_id = of_match_node(arm_smmu_of_match, dev->of_node); - smmu->version = (enum arm_smmu_arch_version)of_id->data; + smmu->version = (enum arm_smmu_arch_version)(uintptr_t)of_id->data; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); smmu->base = devm_ioremap_resource(dev, res);