From: Ursula Braun <ursula.braun@xxxxxxxxxx>
The new socket family is assigned the next available address / protocol family
constant 41.
In addition some extra setsockopt handling is needed, which requires definition
of SMC-specific setsockopt level 281.
To support socket call splice_read in AF_SMC, exporting symbol splice_to_pipe
is needed.
Signed-off-by: Ursula Braun <ubraun@xxxxxxxxxxxxxxxxxx>
---
fs/splice.c | 1 +
include/linux/socket.h | 5 ++++-
net/Makefile | 1 +
3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/splice.c b/fs/splice.c
index 75c6058..d09d843 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -262,6 +262,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
return ret;
}
+EXPORT_SYMBOL(splice_to_pipe);
void spd_release_page(struct splice_pipe_desc *spd, unsigned int i)
{
diff --git a/include/linux/socket.h b/include/linux/socket.h
index bb9b836..eb887ef 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -180,7 +180,8 @@ struct ucred {
#define AF_ALG 38 /* Algorithm sockets */
#define AF_NFC 39 /* NFC sockets */
#define AF_VSOCK 40 /* vSockets */
-#define AF_MAX 41 /* For now.. */
+#define AF_SMC 41 /* smc sockets */
+#define AF_MAX 42 /* For now.. */
/* Protocol families, same as address families. */
#define PF_UNSPEC AF_UNSPEC
@@ -225,6 +226,7 @@ struct ucred {
#define PF_ALG AF_ALG
#define PF_NFC AF_NFC
#define PF_VSOCK AF_VSOCK
+#define PF_SMC AF_SMC
#define PF_MAX AF_MAX
/* Maximum queue length specifiable by listen. */
@@ -301,6 +303,7 @@ struct ucred {
#define SOL_CAIF 278
#define SOL_ALG 279
#define SOL_NFC 280
+#define SOL_SMC 281
/* IPX options */
#define IPX_TYPE 1
diff --git a/net/Makefile b/net/Makefile
index 7ed1970..851b1ce 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_MAC80211) += mac80211/
obj-$(CONFIG_TIPC) += tipc/
obj-$(CONFIG_NETLABEL) += netlabel/
obj-$(CONFIG_IUCV) += iucv/
+obj-$(CONFIG_AFSMC) += smc/
obj-$(CONFIG_RFKILL) += rfkill/
obj-$(CONFIG_NET_9P) += 9p/
obj-$(CONFIG_CAIF) += caif/
--
1.8.5.5
--
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