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authorChia-Yu Chang <chia-yu.chang@nokia-bell-labs.com>2025-03-05 23:38:43 +0100
committerDavid S. Miller <davem@davemloft.net>2025-03-17 13:49:13 +0000
commit0114a91da67263c56612ff19a6aa0992466e7756 (patch)
tree94021ac0c5f58f15ee151e6f97ef04be7165a779 /include/net/tcp.h
parenttcp: create FLAG_TS_PROGRESS (diff)
downloadwireguard-linux-0114a91da67263c56612ff19a6aa0992466e7756.tar.xz
wireguard-linux-0114a91da67263c56612ff19a6aa0992466e7756.zip
tcp: use BIT() macro in include/net/tcp.h
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>
Diffstat (limited to '')
-rw-r--r--include/net/tcp.h21
1 files changed, 11 insertions, 10 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 7207c52b1fc9..d2315d69e019 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -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;