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Subject[PATCH 4.9 56/61] netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build
Date
From: Pablo Neira Ayuso <pablo@netfilter.org>

commit 4946ea5c1237036155c3b3a24f049fd5f849f8f6 upstream.

>> include/linux/netfilter/nf_conntrack_pptp.h:13:20: warning: 'const' type qualifier on return type has no effect [-Wignored-qualifiers]
extern const char *const pptp_msg_name(u_int16_t msg);
^~~~~~

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 4c559f15efcc ("netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
include/linux/netfilter/nf_conntrack_pptp.h | 2 +-
net/netfilter/nf_conntrack_pptp.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

--- a/include/linux/netfilter/nf_conntrack_pptp.h
+++ b/include/linux/netfilter/nf_conntrack_pptp.h
@@ -4,7 +4,7 @@

#include <linux/netfilter/nf_conntrack_common.h>

-extern const char *const pptp_msg_name(u_int16_t msg);
+const char *pptp_msg_name(u_int16_t msg);

/* state of the control session */
enum pptp_ctrlsess_state {
--- a/net/netfilter/nf_conntrack_pptp.c
+++ b/net/netfilter/nf_conntrack_pptp.c
@@ -90,7 +90,7 @@ static const char *const pptp_msg_name_a
[PPTP_SET_LINK_INFO] = "SET_LINK_INFO"
};

-const char *const pptp_msg_name(u_int16_t msg)
+const char *pptp_msg_name(u_int16_t msg)
{
if (msg > PPTP_MSG_MAX)
return pptp_msg_name_array[0];

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