From c64f983b93409fd5f73e118a0dc36dc2d0d2f83f Mon Sep 17 00:00:00 2001
From: Solar Designer <solar@openwall.com>
Date: Sun, 28 Jul 2024 16:14:58 +0200
Subject: [PATCH] sysctl: Exclude the trailing empty element on recent kernels

Fixes #347
---
 src/modules/comm_channel/p_comm_channel.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/modules/comm_channel/p_comm_channel.c b/src/modules/comm_channel/p_comm_channel.c
index 63720638..e130e3e6 100644
--- a/src/modules/comm_channel/p_comm_channel.c
+++ b/src/modules/comm_channel/p_comm_channel.c
@@ -332,7 +332,14 @@ struct ctl_table p_lkrg_sysctl_table[] = {
       .extra1         = &p_profile_enforce_min,
       .extra2         = &p_profile_enforce_max,
    },
+/*
+ * Empty element at the end of array was required when register_sysctl() was a
+ * function.  It's no longer required when it became a macro in 2023, and it's
+ * disallowed after further changes in 2024.
+ */
+#ifndef register_sysctl
    { }
+#endif
 };