[PATCH v9 3/7] iommu: Add verisilicon IOMMU driver

[Jianfeng Liu]

Hi,

On Thu, 11 Sep 2025 17:57:13 +0200, Benjamin Gaignard wrote:
>+#ifdef CONFIG_VSI_IOMMU
>+void vsi_iommu_restore_ctx(struct iommu_domain *domain);
>+#else
>+static inline void vsi_iommu_restore_ctx(struct iommu_domain *domain) {}
>+#endif

After applying this patch to v6.18, I get error when building this driver
as module:

drivers/iommu/vsi-iommu.c:541:6: error: redefinition of 'vsi_iommu_restore_ctx'
  541 | void vsi_iommu_restore_ctx(struct iommu_domain *domain)
   |      ^~~~~~~~~~~~~~~~~~~~~
In file included from drivers/iommu/vsi-iommu.c:31:
./include/linux/vsi-iommu.h:18:20: note: previous definition of 'vsi_iommu_restore_ctx' with type 'void(struct iommu_domain *)'
18 | static inline void vsi_iommu_restore_ctx(struct iommu_domain *domain) {}
   |                    ^~~~~~~~~~~~~~~~~~~~~

I have to use:
#if IS_ENABLED(CONFIG_VSI_IOMMU)
instead.

Best regards,
Jianfeng