From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH v6] vfio: Support for no-IOMMU mode
Date: Thu, 28 Jan 2016 14:58:58 +0100
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References: <1453913438-22991-1-git-send-email-anatoly.burakov@intel.com>
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To: Anatoly Burakov <anatoly.burakov@intel.com>
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2016-01-28 11:57, Anatoly Burakov:
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)

Why not #ifndef VFIO_NOIOMMU_IOMMU?
It would avoid some backport issue.

> +#define RTE_VFIO_NOIOMMU 8
> +#else
> +#define RTE_VFIO_NOIOMMU VFIO_NOIOMMU_IOMMU
> +#endif