From: Andrew Cooper <andrew.cooper3@citrix.com>
Date: Sun, 21 Jan 2018 17:21:05 +0000 (+0000)
Subject: xen/evtchn: Cleanup for virq_is_global() infrastructure
X-Git-Tag: archive/raspbian/4.11.1-1+rpi1~1^2~66^2~666
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=474bb2e262b54e32ddb82b226ee1c69b86361930;p=xen.git

xen/evtchn: Cleanup for virq_is_global() infrastructure

Switch it, and the arch infrastructure, to return bool.  Drop the unnecessary
rc variable, and remove a redundant assertion from send_global_virq().

No functional change.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
---

diff --git a/xen/common/event_channel.c b/xen/common/event_channel.c
index be834c5c78..c62046590b 100644
--- a/xen/common/event_channel.c
+++ b/xen/common/event_channel.c
@@ -93,29 +93,22 @@ static uint8_t get_xen_consumer(xen_event_channel_notification_t fn)
 /* Get the notification function for a given Xen-bound event channel. */
 #define xen_notification_fn(e) (xen_consumers[(e)->xen_consumer-1])
 
-static int virq_is_global(uint32_t virq)
+static bool virq_is_global(unsigned int virq)
 {
-    int rc;
-
-    ASSERT(virq < NR_VIRQS);
-
     switch ( virq )
     {
     case VIRQ_TIMER:
     case VIRQ_DEBUG:
     case VIRQ_XENOPROF:
     case VIRQ_XENPMU:
-        rc = 0;
-        break;
+        return false;
+
     case VIRQ_ARCH_0 ... VIRQ_ARCH_7:
-        rc = arch_virq_is_global(virq);
-        break;
-    default:
-        rc = 1;
-        break;
+        return arch_virq_is_global(virq);
     }
 
-    return rc;
+    ASSERT(virq < NR_VIRQS);
+    return true;
 }
 
 
@@ -809,7 +802,6 @@ static DEFINE_SPINLOCK(global_virq_handlers_lock);
 
 void send_global_virq(uint32_t virq)
 {
-    ASSERT(virq < NR_VIRQS);
     ASSERT(virq_is_global(virq));
 
     send_guest_global_virq(global_virq_handlers[virq] ?: hardware_domain, virq);
diff --git a/xen/include/asm-arm/event.h b/xen/include/asm-arm/event.h
index caefa506a9..2b20d1aa15 100644
--- a/xen/include/asm-arm/event.h
+++ b/xen/include/asm-arm/event.h
@@ -54,9 +54,9 @@ static inline void local_event_delivery_enable(void)
 }
 
 /* No arch specific virq definition now. Default to global. */
-static inline int arch_virq_is_global(int virq)
+static inline bool arch_virq_is_global(unsigned int virq)
 {
-    return 1;
+    return true;
 }
 
 #endif
diff --git a/xen/include/asm-x86/event.h b/xen/include/asm-x86/event.h
index a91599d0ec..2f6ea54bcb 100644
--- a/xen/include/asm-x86/event.h
+++ b/xen/include/asm-x86/event.h
@@ -42,9 +42,9 @@ static inline void local_event_delivery_enable(void)
 }
 
 /* No arch specific virq definition now. Default to global. */
-static inline int arch_virq_is_global(uint32_t virq)
+static inline bool arch_virq_is_global(unsigned int virq)
 {
-    return 1;
+    return true;
 }
 
 #endif