[Xen-changelog] [xen staging] x86/cpuid: Fix build with CentOS 6 following c/s 7479151106

[patchbot@xxxxxxx]

commit 0c83ef40d59812f2e58edac2297edb71c25f5478
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Sep 9 16:53:28 2019 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Sep 10 13:34:29 2019 +0100

    x86/cpuid: Fix build with CentOS 6 following c/s 7479151106
    
    GCC of a CentOS 6 vintage complains:
    
      cpuid.c: In function 'parse_xen_cpuid':
      cpuid.c:32: error: 'mid' may be used uninitialized in this function
    
    This can't occur in practice because the while() loop is guarenteed to be
    entered, but initialise mid to work around the issues.
    
    Spotted by Gitlab CI.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/cpuid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/cpuid.c b/xen/arch/x86/cpuid.c
index 36b1e2ce4c..acba0f7583 100644
--- a/xen/arch/x86/cpuid.c
+++ b/xen/arch/x86/cpuid.c
@@ -29,7 +29,7 @@ static int __init parse_xen_cpuid(const char *s)
             const char *name;
             unsigned int bit;
         } features[] __initconstrel = INIT_FEATURE_NAMES;
-        const struct feature *lhs, *mid, *rhs;
+        const struct feature *lhs, *rhs, *mid = NULL /* GCC... */;
         const char *feat;
 
         ss = strchr(s, ',');
--
generated by git-patchbot for /home/xen/git/xen.git#staging

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/xen-changelog