From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:21 -0500
Subject: wireguard: selftests: increase default dmesg log size
Patch-mainline: v5.16-rc4
Git-commit: 03ff1b1def73f817e196bf96ab36ac259490bd7c
References: git-fixes

The selftests currently parse the kernel log at the end to track
potential memory leaks. With these tests now reading off the end of the
buffer, due to recent optimizations, some creation messages were lost,
making the tests think that there was a free without an alloc. Fix this
by increasing the kernel log size.

Fixes: 24b70eeeb4f4 ("wireguard: use synchronize_net rather than synchronize_rcu")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
 tools/testing/selftests/wireguard/qemu/kernel.config |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/testing/selftests/wireguard/qemu/kernel.config
+++ b/tools/testing/selftests/wireguard/qemu/kernel.config
@@ -66,6 +66,7 @@ CONFIG_PROC_SYSCTL=y
 CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
+CONFIG_LOG_BUF_SHIFT=18
 CONFIG_PRINTK_TIME=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_LEGACY_VSYSCALL_NONE=y