From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Thu, 11 Feb 2016 17:33:43 +0000 (+0000)
Subject: Revert "exec: fix a glitch in checking dma r/w access"
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=352a3530ec72cbf6dda8ba00c103e49951e77f90;p=qemu-upstream-4.4-testing.git

Revert "exec: fix a glitch in checking dma r/w access"

This reverts commit 2600664a4e8d333290f01f0a957ea996e300bc6f.
The patch should not have been committed, see:
http://marc.info/?l=qemu-devel&m=145373225020873.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---

diff --git a/exec.c b/exec.c
index e64f69b59..f3797b779 100644
--- a/exec.c
+++ b/exec.c
@@ -1903,7 +1903,7 @@ static void invalidate_and_set_dirty(hwaddr addr,
 static inline bool memory_access_is_direct(MemoryRegion *mr, bool is_write)
 {
     if (memory_region_is_ram(mr)) {
-        return (is_write && !mr->readonly);
+        return !(is_write && mr->readonly);
     }
     if (memory_region_is_romd(mr)) {
         return !is_write;