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Date: Fri, 23 Jan 2015 17:43:58 -0800 From: John Stultz <john.stultz@...aro.org> To: lkml <linux-kernel@...r.kernel.org> Cc: Xunlei Pang <pang.xunlei@...aro.org>, Arnd Bergmann <arnd.bergmann@...aro.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...nel.org>, John Stultz <john.stultz@...aro.org> Subject: [PATCH 6/8] rtc: Modify rtc_hctosys() to address y2038 issues From: Xunlei Pang <pang.xunlei@...aro.org> rtc_hctosys() has a number of y2038 issues. This patch resolves them by: - Replace rtc_tm_to_time() with y2038-safe rtc_tm_to_time64() - Replace do_settimeofday() with y2038-safe do_settimeofday64() After this patch, it should not have any remaining y2038 issues. Cc: pang.xunlei <pang.xunlei@...aro.org> Cc: Arnd Bergmann <arnd.bergmann@...aro.org> Cc: Thomas Gleixner <tglx@...utronix.de> Cc: Ingo Molnar <mingo@...nel.org> Signed-off-by: Xunlei Pang <pang.xunlei@...aro.org> Signed-off-by: John Stultz <john.stultz@...aro.org> --- drivers/rtc/hctosys.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c index 4aa60d7..2153b52 100644 --- a/drivers/rtc/hctosys.c +++ b/drivers/rtc/hctosys.c @@ -26,7 +26,7 @@ static int __init rtc_hctosys(void) { int err = -ENODEV; struct rtc_time tm; - struct timespec tv = { + struct timespec64 tv64 = { .tv_nsec = NSEC_PER_SEC >> 1, }; struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE); @@ -52,16 +52,16 @@ static int __init rtc_hctosys(void) goto err_invalid; } - rtc_tm_to_time(&tm, &tv.tv_sec); + tv64.tv_sec = rtc_tm_to_time64(&tm); - err = do_settimeofday(&tv); + err = do_settimeofday64(&tv64); dev_info(rtc->dev.parent, "setting system clock to " - "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n", + "%d-%02d-%02d %02d:%02d:%02d UTC (%lld)\n", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, - (unsigned int) tv.tv_sec); + (long long) tv64.tv_sec); err_invalid: err_read: -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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