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Message-Id: <20240306-const-sysctl-prep-watchdog-v1-1-bd45da3a41cf@weissschuh.net>
Date: Wed, 06 Mar 2024 07:49:16 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] watchdog/core: remove sysctl handlers from public header
The functions are only used in the file where they are defined.
Remove them from the header and make them static.
Also guard proc_soft_watchdog with a #define-guard as it is not used
otherwise.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
include/linux/nmi.h | 7 -------
kernel/watchdog.c | 22 ++++++++++++----------
2 files changed, 12 insertions(+), 17 deletions(-)
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index e92e378df000..f53438eae815 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -216,13 +216,6 @@ void watchdog_update_hrtimer_threshold(u64 period);
static inline void watchdog_update_hrtimer_threshold(u64 period) { }
#endif
-struct ctl_table;
-int proc_watchdog(struct ctl_table *, int, void *, size_t *, loff_t *);
-int proc_nmi_watchdog(struct ctl_table *, int , void *, size_t *, loff_t *);
-int proc_soft_watchdog(struct ctl_table *, int , void *, size_t *, loff_t *);
-int proc_watchdog_thresh(struct ctl_table *, int , void *, size_t *, loff_t *);
-int proc_watchdog_cpumask(struct ctl_table *, int, void *, size_t *, loff_t *);
-
#ifdef CONFIG_HAVE_ACPI_APEI_NMI
#include <asm/nmi.h>
#endif
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 81a8862295d6..d7b2125503af 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -796,8 +796,8 @@ static int proc_watchdog_common(int which, struct ctl_table *table, int write,
/*
* /proc/sys/kernel/watchdog
*/
-int proc_watchdog(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+static int proc_watchdog(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
{
return proc_watchdog_common(WATCHDOG_HARDLOCKUP_ENABLED |
WATCHDOG_SOFTOCKUP_ENABLED,
@@ -807,8 +807,8 @@ int proc_watchdog(struct ctl_table *table, int write,
/*
* /proc/sys/kernel/nmi_watchdog
*/
-int proc_nmi_watchdog(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+static int proc_nmi_watchdog(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
{
if (!watchdog_hardlockup_available && write)
return -ENOTSUPP;
@@ -816,21 +816,23 @@ int proc_nmi_watchdog(struct ctl_table *table, int write,
table, write, buffer, lenp, ppos);
}
+#ifdef CONFIG_SOFTLOCKUP_DETECTOR
/*
* /proc/sys/kernel/soft_watchdog
*/
-int proc_soft_watchdog(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+static int proc_soft_watchdog(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
{
return proc_watchdog_common(WATCHDOG_SOFTOCKUP_ENABLED,
table, write, buffer, lenp, ppos);
}
+#endif
/*
* /proc/sys/kernel/watchdog_thresh
*/
-int proc_watchdog_thresh(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+static int proc_watchdog_thresh(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
{
int err, old;
@@ -852,8 +854,8 @@ int proc_watchdog_thresh(struct ctl_table *table, int write,
* user to specify a mask that will include cpus that have not yet
* been brought online, if desired.
*/
-int proc_watchdog_cpumask(struct ctl_table *table, int write,
- void *buffer, size_t *lenp, loff_t *ppos)
+static int proc_watchdog_cpumask(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
{
int err;
---
base-commit: 5847c9777c303a792202c609bd761dceb60f4eed
change-id: 20240306-const-sysctl-prep-watchdog-fc8cdd6424c9
Best regards,
--
Thomas Weißschuh <linux@...ssschuh.net>
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