[tip:x86/urgent] hpet: Drop stale URLs

[tip-bot for Michael S. Tsirkin]

Commit-ID:  4e7f9df25874cedbbc604a5c5c2e7a6efe662387
Gitweb:     http://git.kernel.org/tip/4e7f9df25874cedbbc604a5c5c2e7a6efe662387
Author:     Michael S. Tsirkin <mst@xxxxxxxxxx>
AuthorDate: Thu, 11 Feb 2016 01:05:01 +0200
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 17 Feb 2016 09:39:56 +0100

hpet: Drop stale URLs

Looks like the HPET spec at intel.com got moved.
It isn't hard to find so drop the link, just mention
the revision assumed.

Suggested-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Clemens Ladisch <clemens@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: linux-doc@xxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/1455145462-3877-1-git-send-email-mst@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 Documentation/timers/hpet.txt | 4 +---
 arch/x86/Kconfig              | 4 ++--
 drivers/char/hpet.c           | 2 +-
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/Documentation/timers/hpet.txt b/Documentation/timers/hpet.txt
index 767392f..a484d2c 100644
--- a/Documentation/timers/hpet.txt
+++ b/Documentation/timers/hpet.txt
@@ -1,9 +1,7 @@
 		High Precision Event Timer Driver for Linux
 
 The High Precision Event Timer (HPET) hardware follows a specification
-by Intel and Microsoft which can be found at
-
-	http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+by Intel and Microsoft, revision 1.
 
 Each HPET has one fixed-rate counter (at 10+ MHz, hence "High Precision")
 and up to 32 comparators.  Normally three or more comparators are provided,
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ab2ed53..c46662f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -778,8 +778,8 @@ config HPET_TIMER
 	  HPET is the next generation timer replacing legacy 8254s.
 	  The HPET provides a stable time base on SMP
 	  systems, unlike the TSC, but it is more expensive to access,
-	  as it is off-chip.  You can find the HPET spec at
-	  <http://www.intel.com/hardwaredesign/hpetspec_1.pdf>.
+	  as it is off-chip.  The interface used is documented
+	  in the HPET spec, revision 1.
 
 	  You can safely choose Y here.  However, HPET will only be
 	  activated if the platform and the BIOS support this feature.
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 240b6cf..be54e53 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -42,7 +42,7 @@
 /*
  * The High Precision Event Timer driver.
  * This driver is closely modelled after the rtc.c driver.
- * http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+ * See HPET spec revision 1.
  */
 #define	HPET_USER_FREQ	(64)
 #define	HPET_DRIFT	(500)