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[PATCH] x86/PV: correct post-preemption progress recording in iommu_memory_setup()
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 27 Jul 2022 12:41:43 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Paul Durrant <paul@xxxxxxx>
- Delivery-date: Wed, 27 Jul 2022 10:41:54 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Coverity validly points out that the mfn_add() as used was dead code.
Coverity ID: 1507475
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
--- a/xen/arch/x86/pv/dom0_build.c
+++ b/xen/arch/x86/pv/dom0_build.c
@@ -130,7 +130,7 @@ static void __init iommu_memory_setup(st
IOMMUF_readable | IOMMUF_writable | IOMMUF_preempt,
flush_flags)) > 0 )
{
- mfn_add(mfn, rc);
+ mfn = mfn_add(mfn, rc);
nr -= rc;
/* See comment below. */
for ( ; rc--; ++page )
|
