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Diffstat (limited to 'net/tcp.c')
-rw-r--r--net/tcp.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/tcp.c b/net/tcp.c
index 2600f74b265..2635727f47d 100644
--- a/net/tcp.c
+++ b/net/tcp.c
@@ -36,7 +36,11 @@
#define TCP_SEND_RETRY 3
#define TCP_SEND_TIMEOUT 2000UL
#define TCP_RX_INACTIVE_TIMEOUT 30000UL
-#define TCP_RCV_WND_SIZE (PKTBUFSRX * TCP_MSS)
+#if PKTBUFSRX != 0
+ #define TCP_RCV_WND_SIZE (PKTBUFSRX * TCP_MSS)
+#else
+ #define TCP_RCV_WND_SIZE (4 * TCP_MSS)
+#endif
#define TCP_PACKET_OK 0
#define TCP_PACKET_DROP 1