linux-kernel - [PATCH] include/linux: printk is needed in filter.h when CONFIG_BPF

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Date:	Thu, 28 Mar 2013 13:59:00 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	edumazet@...gle.com, dborkman@...hat.com, wad@...omium.org,
	eparis@...hat.com
CC:	David Miller <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] include/linux: printk is needed in filter.h when CONFIG_BPF_JIT
 is defined


  for make V=1 EXTRA_CFLAGS=-W ARCH=arm allmodconfig
    printk is need when CONFIG_BPF_JIT is defined
    or it will report pr_err and print_hex_dump are implicit declaration

Signed-off-by: Chen Gang <gang.chen@...anux.com>
---
 include/linux/filter.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/include/linux/filter.h b/include/linux/filter.h
index d7d2508..d1248f4 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -48,6 +48,9 @@ extern int sk_chk_filter(struct sock_filter *filter, unsigned int flen);
 extern int sk_get_filter(struct sock *sk, struct sock_filter __user *filter, unsigned len);
 
 #ifdef CONFIG_BPF_JIT
+#include <linux/linkage.h>
+#include <linux/printk.h>
+
 extern void bpf_jit_compile(struct sk_filter *fp);
 extern void bpf_jit_free(struct sk_filter *fp);
 
-- 
1.7.7.6
--
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