net: declare struct iovec in checksum.h to fix compiler warning
The checksum calculation header exports a function that refers to
struct iov defined in iov.h. Without including the former, build
fails like this:
In file included from hw/net/fsl_etsec/rings.c:24:0:
include/net/checksum.h:51:31: error: ‘struct iovec’ declared inside parameter list [-Werror]
include/net/checksum.h:51:31: error: its scope is only this definition or declaration, which is probably not what you want [-Werror]
Mention struct iovec there.
Reported-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 80203fb..2d7a363 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -19,6 +19,7 @@
#define QEMU_NET_CHECKSUM_H
#include <stdint.h>
+struct iovec;
uint32_t net_checksum_add_cont(int len, uint8_t *buf, int seq);
uint16_t net_checksum_finish(uint32_t sum);