Re: [PATCH] net: core: fix unused variable sparse warning
From: Cong Ding <hidden>
Date: 2012-12-07 00:15:54
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lkml
On Fri, Dec 07, 2012 at 12:06:44AM +0000, Cong Ding wrote:
the variables zero and unres_qlen_max are only used when CONFIG_SYSCTL is defined, otherwise it causes the following sparse warning when we turn on CONFIG_SYSCTL.
sorry for disturbing again, the sparse warning is net/core/neighbour.c:65:12: warning: ‘zero’ defined but not used [-Wunused-variable] net/core/neighbour.c:66:12: warning: ‘unres_qlen_max’ defined but not used [-Wunused-variable] it happens if we turn off CONFIG_SYSCTL.
quoted hunk ↗ jump to hunk
Signed-off-by: Cong Ding <redacted> --- net/core/neighbour.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 36fc692..4a15278 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c@@ -62,8 +62,10 @@ static void __neigh_notify(struct neighbour *n, int type, int flags); static void neigh_update_notify(struct neighbour *neigh); static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev); +#ifdef CONFIG_SYSCTL static int zero; static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN); +#endif static struct neigh_table *neigh_tables; #ifdef CONFIG_PROC_FS-- 1.7.4.5