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[PULL 01/30] spapr/xive: Turn some sanity checks into assertions


From: David Gibson
Subject: [PULL 01/30] spapr/xive: Turn some sanity checks into assertions
Date: Mon, 14 Dec 2020 15:57:38 +1100

From: Greg Kurz <groug@kaod.org>

The sPAPR XIVE device is created by the machine in spapr_irq_init().
The latter overrides any value provided by the user with -global for
the "nr-irqs" and "nr-ends" properties with strictly positive values.

It seems reasonable to assume these properties should never be 0,
which wouldn't make much sense by the way.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201120174646.619395-2-groug@kaod.org>
Reviewed-by: C├ędric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/intc/spapr_xive.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index 1fa09f287a..60e0d5769d 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -296,22 +296,16 @@ static void spapr_xive_realize(DeviceState *dev, Error 
**errp)
     XiveENDSource *end_xsrc = &xive->end_source;
     Error *local_err = NULL;
 
+    /* Set by spapr_irq_init() */
+    g_assert(xive->nr_irqs);
+    g_assert(xive->nr_ends);
+
     sxc->parent_realize(dev, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
     }
 
-    if (!xive->nr_irqs) {
-        error_setg(errp, "Number of interrupt needs to be greater 0");
-        return;
-    }
-
-    if (!xive->nr_ends) {
-        error_setg(errp, "Number of interrupt needs to be greater 0");
-        return;
-    }
-
     /*
      * Initialize the internal sources, for IPIs and virtual devices.
      */
-- 
2.29.2




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