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From: Andi Kleen <ak@suse.de>
To: tglx@linutronix.de, mingo@elte.hu, linux-kernel@vger.kernel.org
Subject: [PATCH] [5/5] Enable ACPI extended century handling for 32bit too v2
Date: Sat,  9 Feb 2008 16:17:01 +0100 (CET)	[thread overview]
Message-ID: <20080209151701.56CAB1B41D1@basil.firstfloor.org> (raw)
In-Reply-To: <20080209416.271135970@suse.de>


Not that it matters much, see comment in the code.

v2: Fix compilation on !ACPI, pointed out by tglx

Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/x86/kernel/rtc.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Index: linux/arch/x86/kernel/rtc.c
===================================================================
--- linux.orig/arch/x86/kernel/rtc.c
+++ linux/arch/x86/kernel/rtc.c
@@ -112,8 +112,11 @@ unsigned long mach_get_cmos_time(void)
 	mon = CMOS_READ(RTC_MONTH);
 	year = CMOS_READ(RTC_YEAR);
 
-#if defined(CONFIG_ACPI) && defined(CONFIG_X86_64)
-	/* CHECKME: Is this really 64bit only ??? */
+#ifdef CONFIG_ACPI
+	/*
+	 * On 32bit not strictly needed because the world ends in 2038
+	 * and the code can handle that with the 2 digit heuristics.
+	 */
 	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
 	    acpi_gbl_FADT.century)
 		century = CMOS_READ(acpi_gbl_FADT.century);

  parent reply	other threads:[~2008-02-09 15:18 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-09 15:16 [PATCH] [1/5] Only do century BCD conversion when we know the RTC is BCD Andi Kleen
2008-02-09 15:16 ` [PATCH] [2/5] Use 2000 offset for 32bit kernels Andi Kleen
2008-02-16 19:24   ` Thomas Gleixner
2008-02-20 10:07     ` Thomas Gleixner
2008-02-20 10:23       ` Andi Kleen
2008-02-09 15:16 ` [PATCH] [3/5] Add warning when RTC clock reports binary Andi Kleen
2008-02-16 19:38   ` Thomas Gleixner
2008-02-09 15:17 ` [PATCH] [4/5] Fix wrong comment Andi Kleen
2008-02-09 15:17 ` Andi Kleen [this message]
2008-02-16 19:38   ` [PATCH] [5/5] Enable ACPI extended century handling for 32bit too v2 Thomas Gleixner
2008-02-11  8:30 ` [PATCH] [1/5] Only do century BCD conversion when we know the RTC is BCD Thomas Gleixner
2008-02-11  8:56   ` Andi Kleen
2008-02-11 22:08     ` Thomas Gleixner
2008-02-11 22:15       ` Andi Kleen
2008-02-12 20:36         ` Thomas Gleixner
2008-02-13 13:49           ` Andi Kleen

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