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| author | Arnd Bergmann <arnd@arndb.de> | 2015-11-16 17:34:50 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-11-16 19:07:08 +0100 |
| commit | dde7632ed02382e4bac2b57c66ee2285764f2cd7 (patch) | |
| tree | 63b2288fc9e4ce5fb268882ed266cf5a8426a7f8 /drivers/clocksource | |
| parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
| download | linux-dde7632ed02382e4bac2b57c66ee2285764f2cd7.tar.gz linux-dde7632ed02382e4bac2b57c66ee2285764f2cd7.tar.bz2 linux-dde7632ed02382e4bac2b57c66ee2285764f2cd7.zip | |
clocksource/fsl: Avoid harmless 64-bit warnings
The ftm_clockevent_init passes the value of "~0UL" into a function
that takes a 32-bit argument, which drops the upper 32 bits, as
gcc warns about on ARM64:
clocksource/fsl_ftm_timer.c: In function 'ftm_clockevent_init':
clocksource/fsl_ftm_timer.c:206:13: warning: large integer implicitly truncated to unsigned type [-Woverflow]
This was obviously unintended behavior, and is easily avoided by
using '~0u' as the integer literal, because that is 32-bit wide
on all architectures.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Xiubo Li <Li.Xiubo@freescale.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/3990834.xnjhm37Grs@wuerfel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/fsl_ftm_timer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/clocksource/fsl_ftm_timer.c b/drivers/clocksource/fsl_ftm_timer.c index 10202f1fdfd7..517e1c7624d4 100644 --- a/drivers/clocksource/fsl_ftm_timer.c +++ b/drivers/clocksource/fsl_ftm_timer.c @@ -203,7 +203,7 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq) int err; ftm_writel(0x00, priv->clkevt_base + FTM_CNTIN); - ftm_writel(~0UL, priv->clkevt_base + FTM_MOD); + ftm_writel(~0u, priv->clkevt_base + FTM_MOD); ftm_reset_counter(priv->clkevt_base); @@ -230,7 +230,7 @@ static int __init ftm_clocksource_init(unsigned long freq) int err; ftm_writel(0x00, priv->clksrc_base + FTM_CNTIN); - ftm_writel(~0UL, priv->clksrc_base + FTM_MOD); + ftm_writel(~0u, priv->clksrc_base + FTM_MOD); ftm_reset_counter(priv->clksrc_base); |