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net: sock: Change tx_queue_mapping in sock_common to unsigned short

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Change 'skc_tx_queue_mapping' field in sock_common structure from
'int' to 'unsigned short' type with ~0 indicating unset and
other positive queue values being set. This will accommodate adding
a new 'unsigned short' field in sock_common in the next patch for
rx_queue_mapping.

Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amritha Nambiar 2018-06-29 21:26:51 -07:00 committed by David S. Miller
parent 04157469b7
commit 755c31cd85
1 changed files with 11 additions and 3 deletions
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14
include/net/sock.h
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@ -214,7 +214,7 @@ struct sock_common {
struct hlist_node skc_node;
struct hlist_nulls_node skc_nulls_node;
};
int skc_tx_queue_mapping;
unsigned short skc_tx_queue_mapping;
union {
int skc_incoming_cpu;
u32 skc_rcv_wnd;
@ -1681,17 +1681,25 @@ static inline int sk_receive_skb(struct sock *sk, struct sk_buff *skb,
static inline void sk_tx_queue_set(struct sock *sk, int tx_queue)
{
/* sk_tx_queue_mapping accept only upto a 16-bit value */
if (WARN_ON_ONCE((unsigned short)tx_queue >= USHRT_MAX))
return;
sk->sk_tx_queue_mapping = tx_queue;
}
#define NO_QUEUE_MAPPING USHRT_MAX
static inline void sk_tx_queue_clear(struct sock *sk)
{
sk->sk_tx_queue_mapping = -1;
sk->sk_tx_queue_mapping = NO_QUEUE_MAPPING;
}
static inline int sk_tx_queue_get(const struct sock *sk)
{
return sk ? sk->sk_tx_queue_mapping : -1;
if (sk && sk->sk_tx_queue_mapping != NO_QUEUE_MAPPING)
return sk->sk_tx_queue_mapping;
return -1;
}
static inline void sk_set_socket(struct sock *sk, struct socket *sock)