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Re: [PATCH v1] s390x/mmu: Remove duplicate check for MMU_DATA_STORE


From: David Hildenbrand
Subject: Re: [PATCH v1] s390x/mmu: Remove duplicate check for MMU_DATA_STORE
Date: Thu, 17 Oct 2019 14:20:05 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1

On 17.10.19 14:19, David Hildenbrand wrote:
No need to double-check if we have a write.

Found by Coverity (CID: 1381016).

Copy and past error, it's 1406404.


Fixes: 31b59419069e ("target/s390x: Return exception from mmu_translate_real")
Cc: Peter Maydell <address@hidden>
Signed-off-by: David Hildenbrand <address@hidden>
---
  target/s390x/mmu_helper.c | 4 +---
  1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c
index 90b81335f9..c9f3f34750 100644
--- a/target/s390x/mmu_helper.c
+++ b/target/s390x/mmu_helper.c
@@ -556,9 +556,7 @@ int mmu_translate_real(CPUS390XState *env, target_ulong 
raddr, int rw,
          *flags |= PAGE_WRITE_INV;
          if (is_low_address(raddr) && rw == MMU_DATA_STORE) {
              /* LAP sets bit 56 */
-            *tec = (raddr & TARGET_PAGE_MASK)
-                 | (rw == MMU_DATA_STORE ? FS_WRITE : FS_READ)
-                 | 0x80;
+            *tec = (raddr & TARGET_PAGE_MASK) | FS_WRITE | 0x80;
              return PGM_PROTECTION;
          }
      }



--

Thanks,

David / dhildenb



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