linux-kernel - [PATCH 03/15] hyperv: use standard bitops

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Message-ID: <20161220155602.6298-4-rkagan@virtuozzo.com>
Date:   Tue, 20 Dec 2016 18:55:50 +0300
From:   Roman Kagan <rkagan@...tuozzo.com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>
CC:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, <x86@...nel.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devel@...uxdriverproject.org>,
        "Denis V . Lunev" <den@...nvz.org>,
        Roman Kagan <rkagan@...tuozzo.com>
Subject: [PATCH 03/15] hyperv: use standard bitops

Signed-off-by: Roman Kagan <rkagan@...tuozzo.com>
---
 drivers/hv/channel.c    | 8 +++-----
 drivers/hv/connection.c | 9 +++------
 2 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 5fb4c6d..f9df275 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -49,15 +49,13 @@ void vmbus_setevent(struct vmbus_channel *channel)
 	 */
 	if ((channel->offermsg.monitor_allocated) &&
 	    (!channel->low_latency)) {
-		/* Each u32 represents 32 channels */
-		sync_set_bit(channel->offermsg.child_relid & 31,
-			(unsigned long *) vmbus_connection.send_int_page +
-			(channel->offermsg.child_relid >> 5));
+		set_bit(channel->offermsg.child_relid,
+			(unsigned long *)vmbus_connection.send_int_page);
 
 		/* Get the child to parent monitor page */
 		monitorpage = vmbus_connection.monitor_pages[1];
 
-		sync_set_bit(channel->monitor_bit,
+		set_bit(channel->monitor_bit,
 			(unsigned long *)&monitorpage->trigger_group
 					[channel->monitor_grp].pending);
 
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index aaa2103..139b33e 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -468,12 +468,9 @@ void vmbus_set_event(struct vmbus_channel *channel)
 {
 	u32 child_relid = channel->offermsg.child_relid;
 
-	if (!channel->is_dedicated_interrupt) {
-		/* Each u32 represents 32 channels */
-		sync_set_bit(child_relid & 31,
-			(unsigned long *)vmbus_connection.send_int_page +
-			(child_relid >> 5));
-	}
+	if (!channel->is_dedicated_interrupt)
+		set_bit(child_relid,
+			(unsigned long *)vmbus_connection.send_int_page);
 
 	hv_do_hypercall(HVCALL_SIGNAL_EVENT, channel->sig_event, NULL);
 }
-- 
2.9.3