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authorHongjun Ni <hongjun.ni@intel.com>2018-06-15 05:32:23 +0800
committerDave Barach <openvpp@barachs.net>2018-06-26 19:54:12 +0000
commit79c38af0fded49e65fd09fbd9bfa1dda8af475ec (patch)
tree141b1932f2d046264e52eafd5a70885be74e7ea1 /src/vnet/ip/ip_packet.h
parent352c2c40c720acefaa49ade61cf9e8fdef3c846f (diff)
Fix assert issue in ip_csum_add_even()
ASSERT (ip_csum_with_carry (d, x) == c) will raise assert if d equals to zero while x not equals to zero. Change-Id: Ia9ccdbf801ae565eaadd49f04569d13bfc31cba8 Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
Diffstat (limited to 'src/vnet/ip/ip_packet.h')
-rw-r--r--src/vnet/ip/ip_packet.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/vnet/ip/ip_packet.h b/src/vnet/ip/ip_packet.h
index 3c532f10ffe..6c86e3e046e 100644
--- a/src/vnet/ip/ip_packet.h
+++ b/src/vnet/ip/ip_packet.h
@@ -107,7 +107,8 @@ ip_csum_add_even (ip_csum_t c, ip_csum_t x)
/* Fold in carry from high bit. */
d -= d > c;
- ASSERT (ip_csum_with_carry (d, x) == c);
+ ip_csum_t t = ip_csum_with_carry (d, x);
+ ASSERT ((t - c == 0) || (t - c == ~0));
return d;
}