[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 03/12] x86/irq: introduce local irq_desc
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Roger Pau Monne <roger.pau@xxxxxxxxxx>
- Date: Thu, 20 Nov 2025 10:06:28 +0100
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=qAs1Y5Qqo4ZLjPuw0r6KVRa8n5fqVYDMsTWrbFPvIG8=; b=r0QcaeX2PcyzU5AJYg1gA9APsook5aMPl4rbEAH4Wm0cjw84cb4Z17k4U4fCQyMCRWvhHWV7tIdtzudQLIZmzZZJtX3yH6R7+Kgdbp916EuxeJu9gaYLIMNVQ0WwdrFsE0ZJuVTGorcCCxaXNWQ+Md4bXTyMU16DwJlQBJGkd/Q+zuENboRFdvbzVYcUnaRYp5kAdkpSpHRwwE9wMeJT5pzOm9jzTLdgruKlDW6YONZuQ1GGv+X0A6HwRUs8/PiUDnkayU10HsblQsEbBNS83t7jweHh2i44gIH133UyI6Cy8iZIrVV5NaS1bmOvjupH/LWParns1aIVZK6PfHBH2g==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=gsTvlb6gl58GLHdhrHR9X8gHktRQyynoE4WtFHUFW6JIn4EQKNu6NjW57RHcZQ5gLSztr0PSPC7ekrscwIN8XQtliXI8pcJ6EEM84wF8VfoqQ0UYO0CtLAUHwv/hxXq56v0KuDbzkcEoRTfl0WDTRdNap/nt5g4TcA/Jsqmx6bzBx3YGF428+WhJaadS28cXEC180hYslfiqSFBSAcPJQznFFQzElektQBjtnKJMX39hye0gW+bE5DCrg+l2OmYNT9ArHLNN9ZBA0+NFQ0b3U9q+94aAJ0FTIJRXWyXAv0v0qOVI0rMZHZTrg8IUvQS0t++oTTLTn9Ovc1mw36mGlw==
- Authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=citrix.com;
- Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Delivery-date: Thu, 20 Nov 2025 09:09:34 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Avoid duplicated calls to irq_to_desc() by storing the result in a local
variable. No functional change.
Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
xen/arch/x86/smpboot.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/xen/arch/x86/smpboot.c b/xen/arch/x86/smpboot.c
index 8d3161248de0..7fab5552335b 100644
--- a/xen/arch/x86/smpboot.c
+++ b/xen/arch/x86/smpboot.c
@@ -1455,12 +1455,16 @@ void __init smp_intr_init(void)
*/
for ( seridx = 0; seridx <= SERHND_IDX; seridx++ )
{
+ struct irq_desc *desc;
+
if ( (irq = serial_irq(seridx)) < 0 )
continue;
vector = alloc_hipriority_vector();
per_cpu(vector_irq, cpu)[vector] = irq;
- irq_to_desc(irq)->arch.vector = vector;
- cpumask_copy(irq_to_desc(irq)->arch.cpu_mask, &cpu_online_map);
+
+ desc = irq_to_desc(irq);
+ desc->arch.vector = vector;
+ cpumask_copy(desc->arch.cpu_mask, &cpu_online_map);
}
/* Direct IPI vectors. */
--
2.51.0
|
