Commit 39ea34cc authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds

rtc: ds1685: remove superfluous checks for out-of-range u8 values

drivers/rtc/rtc-ds1685.c: In function `ds1685_rtc_read_alarm':
drivers/rtc/rtc-ds1685.c:402: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:409: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:416: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c: In function `ds1685_rtc_set_alarm':
drivers/rtc/rtc-ds1685.c:475: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:478: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:481: warning: comparison is always true due to limited range of data type

u8 cannot contain a value larger than 0xff, hence drop the checks.
Wrapping the checks in unlikely() indicated some sense of humor, though ;-)
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: default avatarJoshua Kinard <kumba@gentoo.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 682354d4
...@@ -399,21 +399,21 @@ ds1685_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) ...@@ -399,21 +399,21 @@ ds1685_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
* of this RTC chip. We check for it anyways in case support is * of this RTC chip. We check for it anyways in case support is
* added in the future. * added in the future.
*/ */
if (unlikely((seconds >= 0xc0) && (seconds <= 0xff))) if (unlikely(seconds >= 0xc0))
alrm->time.tm_sec = -1; alrm->time.tm_sec = -1;
else else
alrm->time.tm_sec = ds1685_rtc_bcd2bin(rtc, seconds, alrm->time.tm_sec = ds1685_rtc_bcd2bin(rtc, seconds,
RTC_SECS_BCD_MASK, RTC_SECS_BCD_MASK,
RTC_SECS_BIN_MASK); RTC_SECS_BIN_MASK);
if (unlikely((minutes >= 0xc0) && (minutes <= 0xff))) if (unlikely(minutes >= 0xc0))
alrm->time.tm_min = -1; alrm->time.tm_min = -1;
else else
alrm->time.tm_min = ds1685_rtc_bcd2bin(rtc, minutes, alrm->time.tm_min = ds1685_rtc_bcd2bin(rtc, minutes,
RTC_MINS_BCD_MASK, RTC_MINS_BCD_MASK,
RTC_MINS_BIN_MASK); RTC_MINS_BIN_MASK);
if (unlikely((hours >= 0xc0) && (hours <= 0xff))) if (unlikely(hours >= 0xc0))
alrm->time.tm_hour = -1; alrm->time.tm_hour = -1;
else else
alrm->time.tm_hour = ds1685_rtc_bcd2bin(rtc, hours, alrm->time.tm_hour = ds1685_rtc_bcd2bin(rtc, hours,
...@@ -472,13 +472,13 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) ...@@ -472,13 +472,13 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
* field, and we only support four fields. We put the support * field, and we only support four fields. We put the support
* here anyways for the future. * here anyways for the future.
*/ */
if (unlikely((seconds >= 0xc0) && (seconds <= 0xff))) if (unlikely(seconds >= 0xc0))
seconds = 0xff; seconds = 0xff;
if (unlikely((minutes >= 0xc0) && (minutes <= 0xff))) if (unlikely(minutes >= 0xc0))
minutes = 0xff; minutes = 0xff;
if (unlikely((hours >= 0xc0) && (hours <= 0xff))) if (unlikely(hours >= 0xc0))
hours = 0xff; hours = 0xff;
alrm->time.tm_mon = -1; alrm->time.tm_mon = -1;
......
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