linux-kernel - [PATCH v2 11/17] drivers/input/gameport: Replace rdtscl() with native_read

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Message-Id: <1937af4905bc041d07d05bc51bca983a60df2c6c.1434152603.git.luto@kernel.org>
Date:	Fri, 12 Jun 2015 16:44:51 -0700
From:	Andy Lutomirski <luto@...nel.org>
To:	x86@...nel.org
Cc:	Borislav Petkov <bp@...e.de>,
	Peter Zijlstra <peterz@...radead.org>,
	John Stultz <john.stultz@...aro.org>,
	linux-kernel@...r.kernel.org, Len Brown <lenb@...nel.org>,
	Huang Rui <ray.huang@....com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Andy Lutomirski <luto@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org
Subject: [PATCH v2 11/17] drivers/input/gameport: Replace rdtscl() with native_read_tsc()

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

Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: linux-input@...r.kernel.org
Signed-off-by: Andy Lutomirski <luto@...nel.org>
---
 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;
-- 
2.4.2

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