Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.10 15/54] net: secure_seq: Fix warning when CONFIG_IPV6 and CONFIG_INET are not selected | Date | Fri, 1 Nov 2013 15:03:43 -0700 |
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3.10-stable review patch. If anyone has any objections, please let me know.
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From: Fabio Estevam <fabio.estevam@freescale.com>
[ Upstream commit cb03db9d0e964568407fb08ea46cc2b6b7f67587 ]
net_secret() is only used when CONFIG_IPV6 or CONFIG_INET are selected.
Building a defconfig with both of these symbols unselected (Using the ARM at91sam9rl_defconfig, for example) leads to the following build warning:
$ make at91sam9rl_defconfig # # configuration written to .config #
$ make net/core/secure_seq.o scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CC net/core/secure_seq.o net/core/secure_seq.c:17:13: warning: 'net_secret_init' defined but not used [-Wunused-function]
Fix this warning by protecting the definition of net_secret() with these symbols.
Reported-by: Olof Johansson <olof@lixom.net> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/core/secure_seq.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/net/core/secure_seq.c +++ b/net/core/secure_seq.c @@ -10,6 +10,7 @@ #include <net/secure_seq.h> +#if IS_ENABLED(CONFIG_IPV6) || IS_ENABLED(CONFIG_INET) #define NET_SECRET_SIZE (MD5_MESSAGE_BYTES / 4) static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned; @@ -29,6 +30,7 @@ static void net_secret_init(void) cmpxchg(&net_secret[--i], 0, tmp); } } +#endif #ifdef CONFIG_INET static u32 seq_scale(u32 seq)
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