enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/parisc/kernel/time.c
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@@ -40,7 +40,7 @@
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 #include <linux/timex.h>
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-static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
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+static unsigned long clocktick __ro_after_init;	/* timer cycles per tick */
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 /*
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  * We keep time on PA-RISC Linux by using the Interval Timer which is
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@@ -180,9 +180,16 @@
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 static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
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 {
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 	time64_t secs = rtc_tm_to_time64(tm);
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+	int ret;
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-	if (pdc_tod_set(secs, 0) < 0)
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+	/* hppa has Y2K38 problem: pdc_tod_set() takes an u32 value! */
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+	ret = pdc_tod_set(secs, 0);
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+	if (ret != 0) {
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+		pr_warn("pdc_tod_set(%lld) returned error %d\n", secs, ret);
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+		if (ret == PDC_INVALID_ARG)
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+			return -EINVAL;
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 		return -EOPNOTSUPP;
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+	}
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 	return 0;
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 }