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authorThomas Gleixner <tglx@linutronix.de>2009-11-11 14:05:25 +0000
committerThomas Gleixner <tglx@linutronix.de>2009-11-13 20:46:23 +0100
commit23af368e9a904f59256c27d371ce223d6cee0430 (patch)
tree8d38ff75d731abc1182a331c2955b9c3c7025533 /include
parent3c5d92a0cfb5103c0d5ab74d4ae6373d3af38148 (diff)
downloadlinaro-lsk-23af368e9a904f59256c27d371ce223d6cee0430.tar.gz
clockevents: Use u32 for mult and shift factors
The mult and shift factors of clock events differ in their data type from those of clock sources for no reason. u32 is sufficient for both. shift is always <= 32 and mult is limited to 2^32-1 to avoid 64bit multiplication overflows in the conversion. Preparatory patch for a generic mult/shift factor calculation function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Mikael Pettersson <mikpe@it.uu.se> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Cc: John Stultz <johnstul@us.ibm.com> LKML-Reference: <20091111134229.725664788@linutronix.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/clockchips.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 3a1dbba4d3a..3b584101627 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -79,8 +79,8 @@ struct clock_event_device {
unsigned int features;
unsigned long max_delta_ns;
unsigned long min_delta_ns;
- unsigned long mult;
- int shift;
+ u32 mult;
+ u32 shift;
int rating;
int irq;
const struct cpumask *cpumask;