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tcp: use BIT() macro in include/net/tcp.h

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Use BIT() macro for TCP flags field and TCP congestion control
flags that will be used by the congestion control algorithm.

No functional changes.

Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>
Reviewed-by: Ilpo Järvinen <ij@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Chia-Yu Chang 2025-03-05 23:38:43 +01:00 committed by David S. Miller
parent da610e1831
commit 0114a91da6
1 changed files with 11 additions and 10 deletions
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21
include/net/tcp.h
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@ -26,6 +26,7 @@
#include <linux/kref.h>
#include <linux/ktime.h>
#include <linux/indirect_call_wrapper.h>
#include <linux/bits.h>
#include <net/inet_connection_sock.h>
#include <net/inet_timewait_sock.h>
@ -934,14 +935,14 @@ static inline u32 tcp_rsk_tsval(const struct tcp_request_sock *treq)
#define tcp_flag_byte(th) (((u_int8_t *)th)[13])
#define TCPHDR_FIN 0x01
#define TCPHDR_SYN 0x02
#define TCPHDR_RST 0x04
#define TCPHDR_PSH 0x08
#define TCPHDR_ACK 0x10
#define TCPHDR_URG 0x20
#define TCPHDR_ECE 0x40
#define TCPHDR_CWR 0x80
#define TCPHDR_FIN BIT(0)
#define TCPHDR_SYN BIT(1)
#define TCPHDR_RST BIT(2)
#define TCPHDR_PSH BIT(3)
#define TCPHDR_ACK BIT(4)
#define TCPHDR_URG BIT(5)
#define TCPHDR_ECE BIT(6)
#define TCPHDR_CWR BIT(7)
#define TCPHDR_SYN_ECN (TCPHDR_SYN | TCPHDR_ECE | TCPHDR_CWR)
@ -1132,9 +1133,9 @@ enum tcp_ca_ack_event_flags {
#define TCP_CA_UNSPEC 0
/* Algorithm can be set on socket without CAP_NET_ADMIN privileges */
#define TCP_CONG_NON_RESTRICTED 0x1
#define TCP_CONG_NON_RESTRICTED BIT(0)
/* Requires ECN/ECT set on all packets */
#define TCP_CONG_NEEDS_ECN 0x2
#define TCP_CONG_NEEDS_ECN BIT(1)
#define TCP_CONG_MASK (TCP_CONG_NON_RESTRICTED | TCP_CONG_NEEDS_ECN)
union tcp_cc_info;