Blame SOURCES/0022-super-ddf-Fix-gcc-8.1-overflow-warnings.patch
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From 002a5978f015a77ecc48487006b1030f9dbe1394 Mon Sep 17 00:00:00 2001
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From: Jes Sorensen <jsorensen@fb.com>
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Date: Thu, 31 May 2018 16:07:33 -0400
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Subject: [RHEL7.5 PATCH 22/26] super-ddf: Fix gcc-8.1 overflow warnings
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Cast to types that are big enough to hold the values, but also guarantee
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no overflow of the buffer keepts gcc happy.
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Signed-off-by: Jes Sorensen <jsorensen@fb.com>
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---
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super-ddf.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/super-ddf.c b/super-ddf.c
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index d02a19a..618542c 100644
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--- a/super-ddf.c
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+++ b/super-ddf.c
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@@ -2881,8 +2881,9 @@ static int add_to_super_ddf(struct supertype *st,
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dd->disk.magic = DDF_PHYS_DATA_MAGIC;
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now = time(0);
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tm = localtime(&now;;
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- sprintf(dd->disk.guid, "%8s%04d%02d%02d",
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- T10, tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
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+ sprintf(dd->disk.guid, "%8s%04d%02d%02d", T10,
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+ (__u16)tm->tm_year+1900,
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+ (__u8)tm->tm_mon+1, (__u8)tm->tm_mday);
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tptr = (__u32 *)(dd->disk.guid + 16);
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*tptr++ = random32();
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*tptr = random32();
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--
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2.7.4
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