diff options
| author | Pavel Begunkov <[email protected]> | 2025-02-04 21:56:19 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2025-02-07 00:27:31 +0000 |
| commit | 69e39537b66232103633f685b208f293bf9a15b5 (patch) | |
| tree | ca848f5a85135fb942d389e8b1c0610327e74a6b /net/ipv4/tcp.c | |
| parent | net: page_pool: add a mp hook to unregister_netdevice* (diff) | |
| download | kernel-69e39537b66232103633f685b208f293bf9a15b5.tar.gz kernel-69e39537b66232103633f685b208f293bf9a15b5.zip | |
net: prepare for non devmem TCP memory providers
There is a good bunch of places in generic paths assuming that the only
page pool memory provider is devmem TCP. As we want to reuse the net_iov
and provider infrastructure, we need to patch it up and explicitly check
the provider type when we branch into devmem TCP code.
Reviewed-by: Mina Almasry <[email protected]>
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: Pavel Begunkov <[email protected]>
Signed-off-by: David Wei <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index b872de9a8271..7f43d31c9400 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2476,6 +2476,11 @@ static int tcp_recvmsg_dmabuf(struct sock *sk, const struct sk_buff *skb, } niov = skb_frag_net_iov(frag); + if (!net_is_devmem_iov(niov)) { + err = -ENODEV; + goto out; + } + end = start + skb_frag_size(frag); copy = end - offset; |