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tcp: fix compile error if !CONFIG_SYSCTL 

tcp_tx_skb_cache_key and tcp_rx_skb_cache_key must be available
even if CONFIG_SYSCTL is not set.

Fixes: 0b7d7f6b22 ("tcp: add tcp_tx_skb_cache sysctl")
Fixes: ede61ca474 ("tcp: add tcp_rx_skb_cache sysctl")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2019-06-15 13:19:55 -07:00 committed by David S. Miller
parent d424a2afd7
commit 2e05fcae83
2 changed files with 5 additions and 5 deletions
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5
net/ipv4/sysctl_net_ipv4.c
View File

@ -51,11 +51,6 @@ static int comp_sack_nr_max = 255;
static u32 u32_max_div_HZ = UINT_MAX / HZ;
static int one_day_secs = 24 * 3600;
DEFINE_STATIC_KEY_FALSE(tcp_rx_skb_cache_key);
EXPORT_SYMBOL(tcp_rx_skb_cache_key);
DEFINE_STATIC_KEY_FALSE(tcp_tx_skb_cache_key);
/* obsolete */
static int sysctl_tcp_low_latency __read_mostly;

5
net/ipv4/tcp.c
View File

@ -317,6 +317,11 @@ struct tcp_splice_state {
unsigned long tcp_memory_pressure __read_mostly;
EXPORT_SYMBOL_GPL(tcp_memory_pressure);
DEFINE_STATIC_KEY_FALSE(tcp_rx_skb_cache_key);
EXPORT_SYMBOL(tcp_rx_skb_cache_key);
DEFINE_STATIC_KEY_FALSE(tcp_tx_skb_cache_key);
void tcp_enter_memory_pressure(struct sock *sk)
{
unsigned long val;