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authorThomas Gleixner <tglx@linutronix.de>2011-07-22 09:12:51 +0000
committerJohn Stultz <john.stultz@linaro.org>2011-07-26 14:50:01 -0700
commit6e7a333eaa522ef73be01caec7a01521490aaf00 (patch)
tree76e9ffac58da9bc22327a38ea5e40fc5aa18c530 /include/linux/rtc.h
parent3c8bb90efb6e3105206e4aaa9127395feeda5492 (diff)
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rtc: Limit RTC PIE frequency
The RTC pie hrtimer is self rearming. We really need to limit the frequency to something sensible. Thus limit it to the 8192Hz max value from the rtc man documentation Cc: Willy Tarreau <w@1wt.eu> Cc: stable@kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> [jstultz: slightly reworked to use RTC_MAX_FREQ value] Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'include/linux/rtc.h')
-rw-r--r--include/linux/rtc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index b27ebea..93f4d03 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -97,6 +97,9 @@ struct rtc_pll_info {
#define RTC_AF 0x20 /* Alarm interrupt */
#define RTC_UF 0x10 /* Update interrupt for 1Hz RTC */
+
+#define RTC_MAX_FREQ 8192
+
#ifdef __KERNEL__
#include <linux/types.h>
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