From 94441c3bd99287b9d84f148a08cc9a44675ec749 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 6 Sep 2011 18:58:54 +0200 Subject: [PATCH] iommu/core: Remove global iommu_ops and register_iommu With all IOMMU drivers being converted to bus_set_iommu the global iommu_ops are no longer required. The same is true for the deprecated register_iommu function. Signed-off-by: Joerg Roedel --- drivers/iommu/iommu.c | 27 ++++----------------------- include/linux/iommu.h | 1 - 2 files changed, 4 insertions(+), 24 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 1575aaa36c94..64419c88727e 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -25,16 +25,6 @@ #include #include -static struct iommu_ops *iommu_ops; - -void register_iommu(struct iommu_ops *ops) -{ - if (iommu_ops) - BUG(); - - iommu_ops = ops; -} - static void iommu_bus_init(struct bus_type *bus, struct iommu_ops *ops) { } @@ -68,34 +58,25 @@ EXPORT_SYMBOL_GPL(bus_set_iommu); bool iommu_present(struct bus_type *bus) { - if (bus->iommu_ops != NULL) - return true; - else - return iommu_ops != NULL; + return bus->iommu_ops != NULL; } EXPORT_SYMBOL_GPL(iommu_present); struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) { struct iommu_domain *domain; - struct iommu_ops *ops; int ret; - if (bus->iommu_ops) - ops = bus->iommu_ops; - else - ops = iommu_ops; - - if (ops == NULL) + if (bus == NULL || bus->iommu_ops == NULL) return NULL; domain = kmalloc(sizeof(*domain), GFP_KERNEL); if (!domain) return NULL; - domain->ops = ops; + domain->ops = bus->iommu_ops; - ret = iommu_ops->domain_init(domain); + ret = domain->ops->domain_init(domain); if (ret) goto out_free; diff --git a/include/linux/iommu.h b/include/linux/iommu.h index f56e559442a2..609ebf6bbe0c 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -54,7 +54,6 @@ struct iommu_ops { unsigned long cap); }; -extern void register_iommu(struct iommu_ops *ops); extern int bus_set_iommu(struct bus_type *bus, struct iommu_ops *ops); extern bool iommu_present(struct bus_type *bus); extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus); -- 2.11.0