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Message-Id: <cde3385c115ddf64fe14725f57d88a2a089f23e1.1635977622.git.cdleonard@gmail.com>
Date:   Thu,  4 Nov 2021 00:17:51 +0200
From:   Leonard Crestez <cdleonard@...il.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        David Ahern <dsahern@...nel.org>
Cc:     Dmitry Safonov <0x7f454c46@...il.com>,
        Kuniyuki Iwashima <kuniyu@...zon.co.jp>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Neal Cardwell <ncardwell@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>,
        Enke Chen <enchen@...oaltonetworks.com>,
        Wei Wang <weiwan@...gle.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] tcp: Use BIT() for OPTION_* constants

Extending these flags using the existing (1 << x) pattern triggers
complaints from checkpatch. Instead of ignoring checkpatch modify the
existing values to use BIT(x) style in a separate commit.

Signed-off-by: Leonard Crestez <cdleonard@...il.com>

---
This was split away from a longer series implementing RFC5925
Authentication Option for TCP.

Link: https://lore.kernel.org/netdev/dc9dca0006fa1b586da44dcd54e29eb4300fe773.1635784253.git.cdleonard@gmail.com/

 net/ipv4/tcp_output.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 6867e5db3e35..96f16386f50e 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -406,17 +406,17 @@ static void tcp_init_nondata_skb(struct sk_buff *skb, u32 seq, u8 flags)
 static inline bool tcp_urg_mode(const struct tcp_sock *tp)
 {
 	return tp->snd_una != tp->snd_up;
 }
 
-#define OPTION_SACK_ADVERTISE	(1 << 0)
-#define OPTION_TS		(1 << 1)
-#define OPTION_MD5		(1 << 2)
-#define OPTION_WSCALE		(1 << 3)
-#define OPTION_FAST_OPEN_COOKIE	(1 << 8)
-#define OPTION_SMC		(1 << 9)
-#define OPTION_MPTCP		(1 << 10)
+#define OPTION_SACK_ADVERTISE	BIT(0)
+#define OPTION_TS		BIT(1)
+#define OPTION_MD5		BIT(2)
+#define OPTION_WSCALE		BIT(3)
+#define OPTION_FAST_OPEN_COOKIE	BIT(8)
+#define OPTION_SMC		BIT(9)
+#define OPTION_MPTCP		BIT(10)
 
 static void smc_options_write(__be32 *ptr, u16 *options)
 {
 #if IS_ENABLED(CONFIG_SMC)
 	if (static_branch_unlikely(&tcp_have_smc)) {

base-commit: d4a07dc5ac34528f292a4f328cf3c65aba312e1b
-- 
2.25.1

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