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From: Andy Lutomirski <luto@kernel.org>
To: x86@kernel.org
Cc: Borislav Petkov <bp@suse.de>,
	Peter Zijlstra <peterz@infradead.org>,
	John Stultz <john.stultz@linaro.org>,
	linux-kernel@vger.kernel.org, Len Brown <lenb@kernel.org>,
	Huang Rui <ray.huang@amd.com>,
	Denys Vlasenko <dvlasenk@redhat.com>,
	kvm@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
	Andy Lutomirski <luto@kernel.org>,
	linux-input@vger.kernel.org
Subject: [PATCH v3 11/18] drivers/input/gameport: Replace rdtscl() with native_read_tsc()
Date: Tue, 16 Jun 2015 17:35:59 -0700
Message-ID: <9e058e72f4cf1f13c6483c1360b39c3d188a2c2a.1434501121.git.luto@kernel.org> (raw)
In-Reply-To: <cover.1434501120.git.luto@kernel.org>
In-Reply-To: <cover.1434501120.git.luto@kernel.org>

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

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.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

  parent reply index

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-17  0:35 [PATCH v3 00/18] x86/tsc: Clean up rdtsc helpers Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 01/18] x86/tsc: Inline native_read_tsc and remove __native_read_tsc Andy Lutomirski
2015-06-17  9:26   ` Borislav Petkov
2015-07-06 15:39   ` [tip:x86/asm] x86/asm/tsc: Inline native_read_tsc() and remove __native_read_tsc() tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 02/18] x86/msr/kvm: Remove vget_cycles() Andy Lutomirski
2015-06-17  9:42   ` Borislav Petkov
2015-06-17 13:34   ` Paolo Bonzini
2015-07-06 15:40   ` [tip:x86/asm] x86/asm/tsc, kvm: " tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 03/18] x86/tsc/paravirt: Remove the read_tsc and read_tscp paravirt hooks Andy Lutomirski
2015-06-17  9:56   ` Borislav Petkov
2015-06-19 15:32   ` Borislav Petkov
2015-06-19 16:14     ` Andy Lutomirski
2015-06-19 17:13       ` Borislav Petkov
2015-07-06 15:40   ` [tip:x86/asm] x86/asm/tsc, x86/paravirt: Remove read_tsc() and read_tscp() " tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 04/18] x86/tsc: Replace rdtscll with native_read_tsc Andy Lutomirski
2015-06-17 10:03   ` Borislav Petkov
2015-07-06 15:40   ` [tip:x86/asm] x86/asm/tsc: Replace rdtscll() with native_read_tsc () tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 05/18] x86/tsc: Remove the rdtscp and rdtscpll macros Andy Lutomirski
2015-07-06 15:41   ` [tip:x86/asm] x86/asm/tsc: Remove the rdtscp() and rdtscpll() macros tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 06/18] x86/tsc: Use the full 64-bit tsc in tsc_delay Andy Lutomirski
2015-07-06 15:41   ` [tip:x86/asm] x86/asm/tsc: Use the full 64-bit TSC in delay_tsc() tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 07/18] x86/cpu/amd: Use the full 64-bit TSC to detect the 2.6.2 bug Andy Lutomirski
2015-07-06 15:41   ` [tip:x86/asm] x86/asm/tsc, " tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 08/18] baycom_epp: Replace rdtscl() with native_read_tsc() Andy Lutomirski
2015-06-17  0:49   ` Thomas Sailer
2015-06-20 13:54   ` walter harms
2015-06-20 14:14     ` Thomas Gleixner
2015-06-20 14:26       ` Andy Lutomirski
2015-06-20 16:30         ` Thomas Gleixner
2015-07-06 15:42   ` [tip:x86/asm] x86/asm/tsc, drivers/net/hamradio/baycom_epp: " tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 09/18] staging/lirc_serial: Remove TSC-based timing Andy Lutomirski
2015-07-06 15:42   ` [tip:x86/asm] x86/asm/tsc, " tip-bot for Andy Lutomirski
2015-06-17  0:35 ` [PATCH v3 10/18] input/joystick/analog: Switch from rdtscl() to native_read_tsc() Andy Lutomirski
2015-07-06 15:42   ` [tip:x86/asm] x86/asm/tsc, " tip-bot for Andy Lutomirski
2015-06-17  0:35 ` Andy Lutomirski [this message]
2015-07-06 15:43   ` [tip:x86/asm] x86/asm/tsc, drivers/input/gameport: Replace rdtscl () with native_read_tsc() tip-bot for Andy Lutomirski
2015-06-17  0:36 ` [PATCH v3 12/18] x86/tsc: Remove rdtscl() Andy Lutomirski
2015-07-06 15:43   ` [tip:x86/asm] x86/asm/tsc: " tip-bot for Andy Lutomirski
2015-06-17  0:36 ` [PATCH v3 13/18] x86/tsc: Rename native_read_tsc() to rdtsc() Andy Lutomirski
2015-06-24 21:38   ` Borislav Petkov
2015-07-06 15:43   ` [tip:x86/asm] x86/asm/tsc: " tip-bot for Andy Lutomirski
2015-06-17  0:36 ` [PATCH v3 14/18] x86: Add rdtsc_ordered() and use it in trivial call sites Andy Lutomirski
2015-07-06 15:44   ` [tip:x86/asm] x86/asm/tsc: " tip-bot for Andy Lutomirski
2015-08-21  7:45   ` [tip:x86/asm] x86/asm/tsc: Add rdtscll() merge helper tip-bot for Ingo Molnar
2015-06-17  0:36 ` [PATCH v3 15/18] x86/tsc: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers Andy Lutomirski
2015-07-06 15:44   ` [tip:x86/asm] x86/asm/tsc/sync: " tip-bot for Andy Lutomirski
2015-06-17  0:36 ` [PATCH v3 16/18] x86/tsc: In read_tsc, use rdtsc_ordered() instead of get_cycles() Andy Lutomirski
2015-07-06 15:44   ` [tip:x86/asm] x86/asm/tsc: Use rdtsc_ordered() in read_tsc() " tip-bot for Andy Lutomirski
2015-06-17  0:36 ` [PATCH v3 17/18] x86/kvm/tsc: Drop extra barrier and use rdtsc_ordered in kvmclock Andy Lutomirski
2015-06-17  7:47   ` Paolo Bonzini
2015-06-17 13:31     ` Paolo Bonzini
2015-06-20 21:50     ` Borislav Petkov
2015-07-06 15:45   ` [tip:x86/asm] x86/asm/tsc, x86/kvm: Drop open-coded barrier and use rdtsc_ordered() " tip-bot for Andy Lutomirski
2015-06-17  0:36 ` [PATCH v3 18/18] x86/tsc: Remove rdtsc_barrier() Andy Lutomirski
2015-07-06 15:45   ` [tip:x86/asm] x86/asm/tsc: " tip-bot for Andy Lutomirski
2015-06-17 11:11 ` [PATCH v3 00/18] x86/tsc: Clean up rdtsc helpers Borislav Petkov
2015-06-17 13:37   ` Paolo Bonzini

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