iommu/ipmmu-vmsa: Remove ipmmu_utlb_disable()

The function is unused after commit 1b932ceddd19 ("iommu:
Remove detach_dev callbacks") and so compilation fails with

drivers/iommu/ipmmu-vmsa.c:305:13: error: ‘ipmmu_utlb_disable’ defined but not used [-Werror=unused-function]
  305 | static void ipmmu_utlb_disable(struct ipmmu_vmsa_domain *domain,
      |             ^~~~~~~~~~~~~~~~~~

Remove the function to fix the compile error.

Fixes: 1b932ceddd19 ("iommu: Remove detach_dev callbacks")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230113185640.8050-1-joro@8bytes.org

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 3112822..bdf1a4e 100644 (file)
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -299,18 +299,6 @@ static void ipmmu_utlb_enable(struct ipmmu_vmsa_domain *domain,
        mmu->utlb_ctx[utlb] = domain->context_id;
 }
 
-/*
- * Disable MMU translation for the microTLB.
- */
-static void ipmmu_utlb_disable(struct ipmmu_vmsa_domain *domain,
-                              unsigned int utlb)
-{
-       struct ipmmu_vmsa_device *mmu = domain->mmu;
-
-       ipmmu_imuctr_write(mmu, utlb, 0);
-       mmu->utlb_ctx[utlb] = IPMMU_CTX_INVALID;
-}
-
 static void ipmmu_tlb_flush_all(void *cookie)
 {
        struct ipmmu_vmsa_domain *domain = cookie;