scons: Enable -Wextra by default

Make best use of the compiler, and enable -Wextra as well as
-Wall. There are a few issues that had to be resolved, but they are
all trivial.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/dev/arm/pl011.hh b/src/dev/arm/pl011.hh
index 936dd81ed..e19c74fa2 100644
--- a/src/dev/arm/pl011.hh
+++ b/src/dev/arm/pl011.hh
@@ -110,7 +110,7 @@ class Pl011 : public Uart, public AmbaDevice
     void clearInterrupts(uint16_t ints) { setInterrupts(rawInt & ~ints, imsc); }
 
     /** Masked interrupt status register */
-    const inline uint16_t maskInt() const { return rawInt & imsc; }
+    inline uint16_t maskInt() const { return rawInt & imsc; }
 
     /** Wrapper to create an event out of the thing */
     EventWrapper<Pl011, &Pl011::generateInterrupt> intEvent;