On Fri, Nov 25, 2022 at 05:08:06PM +0000, Arseniy Krasnov wrote:
From: Bobby Eshleman <[email protected]>

This saves original behaviour from af_vsock.c - switch any error
code returned from transport layer to ENOMEM.

Signed-off-by: Bobby Eshleman <[email protected]>
Signed-off-by: Arseniy Krasnov <[email protected]>
---
net/vmw_vsock/vmci_transport.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

@Bryan @Vishnu what do you think about this patch?

A bit of context:

Before this series, the af_vsock core always returned ENOMEM to the user if the transport failed to queue the packet.

Now we are changing it by returning the transport error. So I think here we want to preserve the previous behavior for vmci, but I don't know if that's the right thing.



@Arseniy please in the next versions describe better in the commit messages the reasons for these changes, so it is easier review for others and also in the future by reading the commit message we can understand the reason for the change.

Thanks,
Stefano


diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 842c94286d31..289a36a203a2 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1838,7 +1838,14 @@ static ssize_t vmci_transport_stream_enqueue(
        struct msghdr *msg,
        size_t len)
{
-       return vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0);
+       int err;
+
+       err = vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0);
+
+       if (err < 0)
+               err = -ENOMEM;
+
+       return err;
}

static s64 vmci_transport_stream_has_data(struct vsock_sock *vsk)
--
2.25.1

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