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netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build 

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>
This commit is contained in:
Pablo Neira Ayuso 2020-05-27 12:24:10 +02:00 committed by Greg Kroah-Hartman
parent 7a075390b7
commit 3f57fa847e
2 changed files with 2 additions and 2 deletions
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2
include/linux/netfilter/nf_conntrack_pptp.h
View File

@ -10,7 +10,7 @@
#include <net/netfilter/nf_conntrack_expect.h>
#include <uapi/linux/netfilter/nf_conntrack_tuple_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 {

2
net/netfilter/nf_conntrack_pptp.c
View File

@ -91,7 +91,7 @@ static const char *const pptp_msg_name_array[PPTP_MSG_MAX + 1] = {
[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];