[Xen-devel] [PATCH 2/3] xtf: avoid shifting a negative value

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

Because it's undefined behaviour.

Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 include/arch/x86/processor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/arch/x86/processor.h b/include/arch/x86/processor.h
index c9f253f..841953c 100644
--- a/include/arch/x86/processor.h
+++ b/include/arch/x86/processor.h
@@ -134,7 +134,7 @@
 /* Segment-based Error Code - supplemental constants. */
 #define X86_EC_TABLE_MASK (3  << 1)
 #define X86_EC_SEL_SHIFT  3
-#define X86_EC_SEL_MASK   (-1 << X86_EC_SEL_SHIFT)
+#define X86_EC_SEL_MASK   (-1U << X86_EC_SEL_SHIFT)
 #define X86_EC_GDT        0
 #define X86_EC_LDT        X86_EC_TI
 
-- 
2.7.4 (Apple Git-66)


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