linux-kernel - [PATCH 03/10] ftrace: Remove the now superfluous sentinel elements from ctl

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Message-Id: <20231107-jag-sysctl_remove_empty_elem_kernel-v1-3-e4ce1388dfa0@samsung.com>
Date:   Tue, 07 Nov 2023 14:45:03 +0100
From:   Joel Granados via B4 Relay 
        <devnull+j.granados.samsung.com@...nel.org>
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Cc:     linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        bpf@...r.kernel.org, Joel Granados <j.granados@...sung.com>
Subject: [PATCH 03/10] ftrace: Remove the now superfluous sentinel elements
 from ctl_table array

From: Joel Granados <j.granados@...sung.com>

This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)

Remove sentinel elements from ftrace_sysctls and user_event_sysctls

Signed-off-by: Joel Granados <j.granados@...sung.com>
---
 kernel/trace/ftrace.c            | 1 -
 kernel/trace/trace_events_user.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 8de8bec5f366..fd40d02a23c7 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -8264,7 +8264,6 @@ static struct ctl_table ftrace_sysctls[] = {
 		.mode           = 0644,
 		.proc_handler   = ftrace_enable_sysctl,
 	},
-	{}
 };
 
 static int __init ftrace_sysctl_init(void)
diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c
index 6f046650e527..bef1bdc62acf 100644
--- a/kernel/trace/trace_events_user.c
+++ b/kernel/trace/trace_events_user.c
@@ -2694,7 +2694,6 @@ static struct ctl_table user_event_sysctls[] = {
 		.mode		= 0644,
 		.proc_handler	= set_max_user_events_sysctl,
 	},
-	{}
 };
 
 static int __init trace_events_user_init(void)

-- 
2.30.2