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Diffstat (limited to 'src/include/ip_checksum.h')
-rw-r--r--src/include/ip_checksum.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/ip_checksum.h b/src/include/ip_checksum.h
index a1e0ffabd1..f6ef560057 100644
--- a/src/include/ip_checksum.h
+++ b/src/include/ip_checksum.h
@@ -1,5 +1,5 @@
#ifndef IP_CHECKSUM_H
#define IP_CHECKSUM_H
-unsigned long compute_ip_checksum(void *addr, unsigned long length);
+unsigned long compute_ip_checksum(const void *addr, unsigned long length);
unsigned long add_ip_checksums(unsigned long offset, unsigned long sum, unsigned long new);
#endif /* IP_CHECKSUM_H */