Blame test/integration/centos-7/gcc-constprop.patch

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diff -Nupr src.orig/kernel/time/timekeeping.c src/kernel/time/timekeeping.c
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--- src.orig/kernel/time/timekeeping.c	2017-09-22 15:27:21.602055778 -0400
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+++ src/kernel/time/timekeeping.c	2017-09-22 15:27:27.522080292 -0400
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@@ -877,6 +877,9 @@ void do_gettimeofday(struct timeval *tv)
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 {
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 	struct timespec64 now;
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+	if (!tv)
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+		return;
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+
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 	getnstimeofday64(&now;;
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 	tv->tv_sec = now.tv_sec;
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 	tv->tv_usec = now.tv_nsec/1000;