From: Eric Dumazet <edumazet@google.com>
Date: Tue, 29 Jun 2021 13:52:13 +0000 (-0700)
Subject: tcp_yeah: check struct yeah size at compile time
X-Git-Tag: v5.15~843^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6706721d82f86e9360c3ad5339fe3da5e0988a51;p=platform%2Fkernel%2Flinux-starfive.git

tcp_yeah: check struct yeah size at compile time

Compiler can perform the sanity check instead of waiting
to load the module and crash the host.

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

diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
index 3bb4487..07c4c93 100644
--- a/net/ipv4/tcp_yeah.c
+++ b/net/ipv4/tcp_yeah.c
@@ -221,7 +221,7 @@ static struct tcp_congestion_ops tcp_yeah __read_mostly = {
 
 static int __init tcp_yeah_register(void)
 {
-	BUG_ON(sizeof(struct yeah) > ICSK_CA_PRIV_SIZE);
+	BUILD_BUG_ON(sizeof(struct yeah) > ICSK_CA_PRIV_SIZE);
 	tcp_register_congestion_control(&tcp_yeah);
 	return 0;
 }