openpic: unify gcr mode mask updates

The mode mask already masks out bits we don't care about, so the
actual handling code can stay intact regardless.

Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/hw/openpic.c b/hw/openpic.c
index 085c9549d1c6bfd9c9f30e1c6b4fd7bc7ca23079..c986b5ddcb95d15e9517a4894dcb42779c160bb6 100644 (file)
--- a/hw/openpic.c
+++ b/hw/openpic.c
@@ -646,22 +646,23 @@ static inline void write_IRQreg_ivpr(OpenPICState *opp, int n_IRQ, uint32_t val)
 
 static void openpic_gcr_write(OpenPICState *opp, uint64_t val)
 {
+    CPUArchState *env;
+    int mpic_proxy = 0;
+
     if (val & GCR_RESET) {
         openpic_reset(&opp->busdev.qdev);
-    } else if (opp->mpic_mode_mask) {
-        CPUArchState *env;
-        int mpic_proxy = 0;
+        return;
+    }
 
-        opp->gcr &= ~opp->mpic_mode_mask;
-        opp->gcr |= val & opp->mpic_mode_mask;
+    opp->gcr &= ~opp->mpic_mode_mask;
+    opp->gcr |= val & opp->mpic_mode_mask;
 
-        /* Set external proxy mode */
-        if ((val & opp->mpic_mode_mask) == GCR_MODE_PROXY) {
-            mpic_proxy = 1;
-        }
-        for (env = first_cpu; env != NULL; env = env->next_cpu) {
-            env->mpic_proxy = mpic_proxy;
-        }
+    /* Set external proxy mode */
+    if ((val & opp->mpic_mode_mask) == GCR_MODE_PROXY) {
+        mpic_proxy = 1;
+    }
+    for (env = first_cpu; env != NULL; env = env->next_cpu) {
+        env->mpic_proxy = mpic_proxy;
     }
 }