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[Qemu-ppc] [PULL 09/14] vfio/spapr: Remove stale ioctl() call


From: David Gibson
Subject: [Qemu-ppc] [PULL 09/14] vfio/spapr: Remove stale ioctl() call
Date: Mon, 18 Jul 2016 14:38:45 +1000

This ioctl() call to VFIO_IOMMU_SPAPR_TCE_REMOVE was left over from an
earlier version of the code and has since been folded into
vfio_spapr_remove_window().

It wasn't caught because although the argument structure has been removed,
the libc function remove() means this didn't trigger a compile failure.
The ioctl() was also almost certain to fail silently and harmlessly with
the bogus argument, so this wasn't caught in testing.

Suggested-by: Paolo Bonzini <address@hidden>
Signed-off-by: David Gibson <address@hidden>
Reviewed-by: Alexey Kardashevskiy <address@hidden>
---
 hw/vfio/spapr.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/hw/vfio/spapr.c b/hw/vfio/spapr.c
index 0af3423..7443d34 100644
--- a/hw/vfio/spapr.c
+++ b/hw/vfio/spapr.c
@@ -177,7 +177,6 @@ int vfio_spapr_create_window(VFIOContainer *container,
         error_report("Host doesn't support DMA window at %"HWADDR_PRIx", must 
be %"PRIx64,
                      section->offset_within_address_space,
                      (uint64_t)create.start_addr);
-        ioctl(container->fd, VFIO_IOMMU_SPAPR_TCE_REMOVE, &remove);
         return -EINVAL;
     }
     trace_vfio_spapr_create_window(create.page_shift,
-- 
2.7.4




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