This is a note to let you know that I've just added the patch titled
net: udp: Add support for getsockopt(..., ..., UDP_GRO, ..., ...);
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-udp-add-support-for-getsockopt-.-.-udp_gro.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 23960dbc172a65e328b0d87118eff899caad9b49
Author: Norman Maurer <norman_maurer@xxxxxxxxx>
Date: Thu Apr 1 08:59:17 2021 +0200
net: udp: Add support for getsockopt(..., ..., UDP_GRO, ..., ...);
[ Upstream commit 98184612aca0a9ee42b8eb0262a49900ee9eef0d ]
Support for UDP_GRO was added in the past but the implementation for
getsockopt was missed which did lead to an error when we tried to
retrieve the setting for UDP_GRO. This patch adds the missing switch
case for UDP_GRO
Fixes: e20cf8d3f1f7 ("udp: implement GRO for plain UDP sockets.")
Signed-off-by: Norman Maurer <norman_maurer@xxxxxxxxx>
Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 994a150ae3e9..24841a9e9966 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2692,6 +2692,10 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname,
val = up->gso_size;
break;
+ case UDP_GRO:
+ val = up->gro_enabled;
+ break;
+
/* The following two cannot be changed on UDP sockets, the return is
* always 0 (which corresponds to the full checksum coverage of UDP). */
case UDPLITE_SEND_CSCOV:
