From: Eric Dumazet <edumazet@google.com>
Date: Tue, 29 Jun 2021 13:53:14 +0000 (-0700)
Subject: tcp: change ICSK_CA_PRIV_SIZE definition
X-Git-Tag: iomap-folio-5.17-old~1138^2~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=3f8ad50a9e43b6a59070e6c9c5eec79626f81095;p=users%2Fwilly%2Flinux.git

tcp: change ICSK_CA_PRIV_SIZE definition

Instead of a magic number (13 currently) and having
to change it every other year, use sizeof_field() macro.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 3c8c59471bc1..b06c2d02ec84 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -135,7 +135,7 @@ struct inet_connection_sock {
 	u32			  icsk_user_timeout;
 
 	u64			  icsk_ca_priv[104 / sizeof(u64)];
-#define ICSK_CA_PRIV_SIZE      (13 * sizeof(u64))
+#define ICSK_CA_PRIV_SIZE	  sizeof_field(struct inet_connection_sock, icsk_ca_priv)
 };
 
 #define ICSK_TIME_RETRANS	1	/* Retransmit timer */