[xen master] iommu: remove unused external variables

[patchbot@xxxxxxx]

commit b69bec460bb40d10749dcda7306cc0025311f203
Author:     Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
AuthorDate: Wed Jul 9 11:02:58 2025 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Jul 9 11:02:58 2025 +0200

    iommu: remove unused external variables
    
    These external variables ('iommu_pt_cleanup_lock'
    and 'iommu_pt_cleanup_list') are no longer used
    in the codebase. Remove them.
    
    Fixes: b5622eb627 (iommu: remove unused iommu_ops method and tasklet, 
2020-09-22)
    Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/include/xen/iommu.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index ebfada1d88..3205e49990 100644
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -500,9 +500,6 @@ void iommu_dev_iotlb_flush_timeout(struct domain *d, struct 
pci_dev *pdev);
  */
 DECLARE_PER_CPU(bool, iommu_dont_flush_iotlb);
 
-extern struct spinlock iommu_pt_cleanup_lock;
-extern struct page_list_head iommu_pt_cleanup_list;
-
 bool arch_iommu_use_permitted(const struct domain *d);
 
 #ifdef CONFIG_X86
--
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