[PATCH net] net: udp: Add support for getsockopt(..., ..., UDP_GRO, ..., ...);

From: Norman Maurer <redacted>

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 <redacted>
---
 net/ipv4/udp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 4a0478b17243..99d743eb9dc4 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c

@@ -2754,6 +2754,10 @@ 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:

-- 
2.30.2

On 4/1/21 12:59 AM, Norman Maurer wrote:

From: Norman Maurer <redacted>

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 <redacted>
---
 net/ipv4/udp.c | 4 ++++
 1 file changed, 4 insertions(+)

Reviewed-by: David Ahern <dsahern@kernel.org>

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu,  1 Apr 2021 08:59:17 +0200 you wrote:

From: Norman Maurer <redacted>

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

[...]

Here is the summary with links:
  - [net] net: udp: Add support for getsockopt(..., ..., UDP_GRO, ..., ...);
    https://git.kernel.org/netdev/net/c/98184612aca0

You are awesome, thank you!
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