Subject: [PATCH net-next v1 3/4] net/core: move gro function declarations to separate header

From: Leon Romanovsky <[email-masked]>
Date: Wed, 3 Feb 2021 12:16:11 +0200

From: Leon Romanovsky <[email-masked]>

Fir the following compilation warnings:
 1031 | INDIRECT_CALLABLE_SCOPE void udp_v6_early_demux(struct sk_buff *skb)

net/ipv6/ip6_offload.c:182:41: warning: no previous prototype for ‘ipv6_gro_receive’ [-Wmissing-prototypes]
  182 | INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
      |                                         ^~~~~~~~~~~~~~~~
net/ipv6/ip6_offload.c:320:29: warning: no previous prototype for ‘ipv6_gro_complete’ [-Wmissing-prototypes]
  320 | INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff)
      |                             ^~~~~~~~~~~~~~~~~
net/ipv6/ip6_offload.c:182:41: warning: no previous prototype for ‘ipv6_gro_receive’ [-Wmissing-prototypes]
  182 | INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
      |                                         ^~~~~~~~~~~~~~~~
net/ipv6/ip6_offload.c:320:29: warning: no previous prototype for ‘ipv6_gro_complete’ [-Wmissing-prototypes]
  320 | INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff)

Signed-off-by: Leon Romanovsky <[email-masked]>
---
 include/net/gro.h | 12 ++++++++++++
 net/core/dev.c    |  7 +------
 2 files changed, 13 insertions(+), 6 deletions(-)
 create mode 100644 include/net/gro.h

diff --git a/include/net/gro.h b/include/net/gro.h
new file mode 100644
index 000000000000..8a6eb5303cc4
--- /dev/null
+++ b/include/net/gro.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef _NET_IPV6_GRO_H
+#define _NET_IPV6_GRO_H
+
+INDIRECT_CALLABLE_DECLARE(struct sk_buff *ipv6_gro_receive(struct list_head *,
+							   struct sk_buff *));
+INDIRECT_CALLABLE_DECLARE(int ipv6_gro_complete(struct sk_buff *, int));
+INDIRECT_CALLABLE_DECLARE(struct sk_buff *inet_gro_receive(struct list_head *,
+							   struct sk_buff *));
+INDIRECT_CALLABLE_DECLARE(int inet_gro_complete(struct sk_buff *, int));
+#endif /* _NET_IPV6_GRO_H */
diff --git a/net/core/dev.c b/net/core/dev.c
index c360bb5367e2..6521aada4259 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -101,6 +101,7 @@
 #include <net/dsa.h>
 #include <net/dst.h>
 #include <net/dst_metadata.h>
+#include <net/gro.h>
 #include <net/pkt_sched.h>
 #include <net/pkt_cls.h>
 #include <net/checksum.h>
@@ -5742,8 +5743,6 @@ static void gro_normal_one(struct napi_struct *napi, struct sk_buff *skb)
 		gro_normal_list(napi);
 }

-INDIRECT_CALLABLE_DECLARE(int inet_gro_complete(struct sk_buff *, int));
-INDIRECT_CALLABLE_DECLARE(int ipv6_gro_complete(struct sk_buff *, int));
 static int napi_gro_complete(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct packet_offload *ptype;
@@ -5912,10 +5911,6 @@ static void gro_flush_oldest(struct napi_struct *napi, struct list_head *head)
 	napi_gro_complete(napi, oldest);
 }

-INDIRECT_CALLABLE_DECLARE(struct sk_buff *inet_gro_receive(struct list_head *,
-							   struct sk_buff *));
-INDIRECT_CALLABLE_DECLARE(struct sk_buff *ipv6_gro_receive(struct list_head *,
-							   struct sk_buff *));
 static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	u32 hash = skb_get_hash_raw(skb) & (GRO_HASH_BUCKETS - 1);
--
2.29.2