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Date:   Mon, 18 Jul 2022 13:56:59 -0400
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>
Cc:     davem@...emloft.net, kuba@...nel.org,
        Paolo Abeni <pabeni@...hat.com>, Hideo Aoki <haoki@...hat.com>
Subject: [PATCH net] Documentation: fix udp_wmem_min in ip-sysctl.rst

UDP doesn't support tx memory accounting, and sysctl udp_wmem_min
is not really used anywhere. So we should fix the description in
ip-sysctl.rst accordingly.

Fixes: 95766fff6b9a ("[UDP]: Add memory accounting.")
Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 Documentation/networking/ip-sysctl.rst | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index b7db2e5e5cc5..22703560d2e5 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -1052,11 +1052,7 @@ udp_rmem_min - INTEGER
 	Default: 4K
 
 udp_wmem_min - INTEGER
-	Minimal size of send buffer used by UDP sockets in moderation.
-	Each UDP socket is able to use the size for sending data, even if
-	total pages of UDP sockets exceed udp_mem pressure. The unit is byte.
-
-	Default: 4K
+	UDP does not have tx memory accounting and this tunable has no effect.
 
 RAW variables
 =============
-- 
2.31.1

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