linux-kernel - [GIT PULL] x86/tsc change for v3.1

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Message-ID: <20110723121912.GA1435@elte.hu>
Date:	Sat, 23 Jul 2011 14:19:12 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [GIT PULL] x86/tsc change for v3.1

Linus,

Please pull the latest x86-tsc-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-tsc-for-linus

 Thanks,

	Ingo

------------------>
Tero Roponen (1):
      x86: tsc: Remove unneeded DMI-based blacklisting


 arch/x86/kernel/tsc.c |   24 ------------------------
 1 files changed, 0 insertions(+), 24 deletions(-)

diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 6cc6922..5c45c62 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -5,7 +5,6 @@
 #include <linux/timer.h>
 #include <linux/acpi_pmtmr.h>
 #include <linux/cpufreq.h>
-#include <linux/dmi.h>
 #include <linux/delay.h>
 #include <linux/clocksource.h>
 #include <linux/percpu.h>
@@ -800,27 +799,6 @@ void mark_tsc_unstable(char *reason)
 
 EXPORT_SYMBOL_GPL(mark_tsc_unstable);
 
-static int __init dmi_mark_tsc_unstable(const struct dmi_system_id *d)
-{
-	printk(KERN_NOTICE "%s detected: marking TSC unstable.\n",
-			d->ident);
-	tsc_unstable = 1;
-	return 0;
-}
-
-/* List of systems that have known TSC problems */
-static struct dmi_system_id __initdata bad_tsc_dmi_table[] = {
-	{
-		.callback = dmi_mark_tsc_unstable,
-		.ident = "IBM Thinkpad 380XD",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-			DMI_MATCH(DMI_BOARD_NAME, "2635FA0"),
-		},
-	},
-	{}
-};
-
 static void __init check_system_tsc_reliable(void)
 {
 #ifdef CONFIG_MGEODE_LX
@@ -1010,8 +988,6 @@ void __init tsc_init(void)
 	lpj_fine = lpj;
 
 	use_tsc_delay();
-	/* Check and install the TSC clocksource */
-	dmi_check_system(bad_tsc_dmi_table);
 
 	if (unsynchronized_tsc())
 		mark_tsc_unstable("TSCs unsynchronized");
--
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