From 1ff8a6c32abdfb00d427e1ab408997fc0908f50b Mon Sep 17 00:00:00 2001
From: Ryujiro Shibuya <ryujiro.shibuya@owmobility.com>
Date: Wed, 24 Jun 2020 08:36:14 +0100
Subject: tcp: avoid rcv wnd more than RX fifo can enqueue

Type: fix

Signed-off-by: Ryujiro Shibuya <ryujiro.shibuya@owmobility.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ie358b731f8ecb1fcaebd6e79f5ce5c10802c2814
(cherry picked from commit cc1085647b2ae36e6c086d65b4e81b9f1cf9fc9a)
---
 src/vppinfra/clib.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/vppinfra/clib.h')

diff --git a/src/vppinfra/clib.h b/src/vppinfra/clib.h
index 8aec1f16beb..5e62cc81819 100644
--- a/src/vppinfra/clib.h
+++ b/src/vppinfra/clib.h
@@ -237,6 +237,12 @@ is_pow2 (uword x)
   return 0 == (x & (x - 1));
 }
 
+always_inline uword
+round_down_pow2 (uword x, uword pow2)
+{
+  return (x) & ~(pow2 - 1);
+}
+
 always_inline uword
 round_pow2 (uword x, uword pow2)
 {
-- 
cgit 1.2.3-korg