From: Wang Guangju <wangguangju@baidu.com>
To: <pbonzini@redhat.com>, <sean.j.christopherson@intel.com>,
<vkuznets@redhat.com>, <wanpengli@tencent.com>,
<jmattson@google.com>, <joro@8bytes.org>, <kvm@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <wangguangju@baidu.com>
Subject: [PATCH] KVM: x86: enhance the readability of function pic_intack()
Date: Wed, 12 Jan 2022 16:51:53 +0800 [thread overview]
Message-ID: <20220112085153.4506-1-wangguangju@baidu.com> (raw)
From: wangguangju <wangguangju@baidu.com>
In function pic_intack(), use a varibale of "mask" to
record expression of "1 << irq", so we can enhance the
readability of this function.
Signed-off-by: wangguangju <wangguangju@baidu.com>
---
arch/x86/kvm/i8259.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 814064d06016..ad6b64b11adc 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -216,12 +216,14 @@ void kvm_pic_clear_all(struct kvm_pic *s, int irq_source_id)
*/
static inline void pic_intack(struct kvm_kpic_state *s, int irq)
{
- s->isr |= 1 << irq;
+ int mask;
+ mask = 1 << irq;
+ s->isr |= mask;
/*
* We don't clear a level sensitive interrupt here
*/
- if (!(s->elcr & (1 << irq)))
- s->irr &= ~(1 << irq);
+ if (!(s->elcr & mask))
+ s->irr &= ~mask;
if (s->auto_eoi) {
if (s->rotate_on_auto_eoi)
--
2.25.1
next reply other threads:[~2022-01-13 9:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-12 8:51 Wang Guangju [this message]
2022-01-15 0:46 ` [PATCH] KVM: x86: enhance the readability of function pic_intack() Sean Christopherson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220112085153.4506-1-wangguangju@baidu.com \
--to=wangguangju@baidu.com \
--cc=jmattson@google.com \
--cc=joro@8bytes.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=sean.j.christopherson@intel.com \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.