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Date:   Thu, 18 Mar 2021 18:42:23 +0000
To:     "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>
From:   Alexander Lobakin <alobakin@pm.me>
Cc:     Alexander Lobakin <alobakin@pm.me>,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        Kirill Tkhai <ktkhai@virtuozzo.com>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Leon Romanovsky <leon@kernel.org>,
        Eric Dumazet <edumazet@google.com>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Reply-To: Alexander Lobakin <alobakin@pm.me>
Subject: [PATCH net-next 1/4] gro: make net/gro.h self-contained
Message-ID: <20210318184157.700604-2-alobakin@pm.me>
In-Reply-To: <20210318184157.700604-1-alobakin@pm.me>
References: <20210318184157.700604-1-alobakin@pm.me>
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If some source file includes <net/gro.h>, but doesn't include
<linux/indirect_call_wrapper.h>:

In file included from net/8021q/vlan_core.c:7:
./include/net/gro.h:6:1: warning: data definition has no type or storage cl=
ass
    6 | INDIRECT_CALLABLE_DECLARE(struct sk_buff *ipv6_gro_receive(struct l=
ist_head *,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~
./include/net/gro.h:6:1: error: type defaults to =E2=80=98int=E2=80=99 in d=
eclaration of =E2=80=98INDIRECT_CALLABLE_DECLARE=E2=80=99 [-Werror=3Dimplic=
it-int]

[...]

Include <linux/indirect_call_wrapper.h> directly. It's small and
won't pull lots of dependencies.
Also add some incomplete struct declarations to be fully stacked.

Fixes: 04f00ab2275f ("net/core: move gro function declarations to separate =
header ")
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
---
 include/net/gro.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/net/gro.h b/include/net/gro.h
index 8a6eb5303cc4..27c38b36df16 100644
--- a/include/net/gro.h
+++ b/include/net/gro.h
@@ -3,6 +3,11 @@
 #ifndef _NET_IPV6_GRO_H
 #define _NET_IPV6_GRO_H

+#include <linux/indirect_call_wrapper.h>
+
+struct list_head;
+struct sk_buff;
+
 INDIRECT_CALLABLE_DECLARE(struct sk_buff *ipv6_gro_receive(struct list_hea=
d *,
 =09=09=09=09=09=09=09   struct sk_buff *));
 INDIRECT_CALLABLE_DECLARE(int ipv6_gro_complete(struct sk_buff *, int));
--
2.31.0