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authorJeremy Kerr2021-10-29 11:01:44 +0800
committerDavid S. Miller2021-10-29 13:23:51 +0100
commit78476d315e190533757ab894255c4f2c2f254bce (patch)
tree81c0304087ff9f51f65bb8266d1e210aad31ddcc /include/net
parent212c10c3c658b191c18ecdf80efb742f9bce5205 (diff)
mctp: Add flow extension to skb
This change adds a new skb extension for MCTP, to represent a request/response flow. The intention is to use this in a later change to allow i2c controllers to correctly configure a multiplexer over a flow. Since we have a cleanup function in the core path (if an extension is present), we'll need to make CONFIG_MCTP a bool, rather than a tristate. Includes a fix for a build warning with clang: Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/mctp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/mctp.h b/include/net/mctp.h
index 23bec708f4c7..7a5ba801703c 100644
--- a/include/net/mctp.h
+++ b/include/net/mctp.h
@@ -189,6 +189,13 @@ static inline struct mctp_skb_cb *mctp_cb(struct sk_buff *skb)
return (void *)(skb->cb);
}
+/* If CONFIG_MCTP_FLOWS, we may add one of these as a SKB extension,
+ * indicating the flow to the device driver.
+ */
+struct mctp_flow {
+ struct mctp_sk_key *key;
+};
+
/* Route definition.
*
* These are held in the pernet->mctp.routes list, with RCU protection for