[xen staging] iommu: remove read_msi_from_ire hook

[patchbot@xxxxxxx]

commit d1de2d02cae568c3b81e6104d877a76d9570189d
Author:     Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Tue Apr 13 10:17:15 2021 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Apr 13 10:17:15 2021 +0200

    iommu: remove read_msi_from_ire hook
    
    It's now unused after commit 28fb8cf323dd93f59a9c851c93ba9b79de8b1c4e.
    
    Fixes: 28fb8cf323d ('x86/iommu: remove code to fetch MSI message from remap 
table')
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/include/xen/iommu.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index d59ed7cbad..ea0cd0f1a2 100644
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -244,7 +244,6 @@ struct iommu_ops {
 #ifdef CONFIG_HAS_PCI
     int (*get_device_group_id)(u16 seg, u8 bus, u8 devfn);
     int (*update_ire_from_msi)(struct msi_desc *msi_desc, struct msi_msg *msg);
-    void (*read_msi_from_ire)(struct msi_desc *msi_desc, struct msi_msg *msg);
 #endif /* HAS_PCI */
 
     void (*teardown)(struct domain *d);
--
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