net: ip: Prevent unaligned exception
s_addr is actually an unsigned integer and it's not guaranteed to be
aligned on 4-byte boundary. In net_ipv4_addr_cmp(), accessing s_addr
directly might cause an unaligned exception on some platform
like xtensa. Use UNALIGNED_GET() to prevent unalgined exception.
Signed-off-by: Aska Wu <aska.wu@linaro.org>
diff --git a/include/net/net_ip.h b/include/net/net_ip.h
index 3ee8d70..0db5140 100644
--- a/include/net/net_ip.h
+++ b/include/net/net_ip.h
@@ -488,7 +488,7 @@
static inline bool net_ipv4_addr_cmp(const struct in_addr *addr1,
const struct in_addr *addr2)
{
- return addr1->s_addr == addr2->s_addr;
+ return UNALIGNED_GET(&addr1->s_addr) == UNALIGNED_GET(&addr2->s_addr);
}
/**
