linux-kernel - [PATCH 11/19] drivers/input/gameport: Replace rdtscl() with native_read

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Message-Id: <1435250653-30182-12-git-send-email-bp@alien8.de>
Date:	Thu, 25 Jun 2015 18:44:05 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 11/19] drivers/input/gameport: Replace rdtscl() with native_read_tsc()

From: Andy Lutomirski <luto@...nel.org>

It's unclear to me why this code exists in the first place.

Signed-off-by: Andy Lutomirski <luto@...nel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: Huang Rui <ray.huang@....com>
Cc: John Stultz <john.stultz@...aro.org>
Cc: kvm ML <kvm@...r.kernel.org>
Cc: Len Brown <lenb@...nel.org>
Cc: linux-input@...r.kernel.org
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: x86-ml <x86@...nel.org>
Link: http://lkml.kernel.org/r/9e058e72f4cf1f13c6483c1360b39c3d188a2c2a.1434501121.git.luto@kernel.org
Signed-off-by: Borislav Petkov <bp@...e.de>
---
 drivers/input/gameport/gameport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index e853a2134680..abc0cb22e750 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -149,9 +149,9 @@ static int old_gameport_measure_speed(struct gameport *gameport)
 
 	for(i = 0; i < 50; i++) {
 		local_irq_save(flags);
-		rdtscl(t1);
+		t1 = native_read_tsc();
 		for (t = 0; t < 50; t++) gameport_read(gameport);
-		rdtscl(t2);
+		t2 = native_read_tsc();
 		local_irq_restore(flags);
 		udelay(i * 10);
 		if (t2 - t1 < tx) tx = t2 - t1;
-- 
2.3.5

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