[PATCH v2 5/6] sparc: mv sparc sysctls into their own file under arch/sparc/kernel

From: Joel Granados
Date: Thu Mar 06 2025 - 06:34:54 EST


Move sparc sysctls (reboot-cmd, stop-a, scons-poweroff and tsb-ratio)
into a new file (arch/sparc/kernel/setup.c). This file will be included
for both 32 and 64 bit sparc. Leave "tsb-ratio" under SPARC64 ifdef as
it was in kernel/sysctl.c. The sysctl table register is called with
arch_initcall placing it after its original place in proc_root_init.

This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kerenel/sysctl.c.

Signed-off-by: Joel Granados <joel.granados@xxxxxxxxxx>
---
arch/sparc/kernel/Makefile | 1 +
arch/sparc/kernel/setup.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
kernel/sysctl.c | 35 -----------------------------------
3 files changed, 47 insertions(+), 35 deletions(-)

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 58ea4ef9b622bd18f2160b34762c69b48f3de8c6..3453f330e363cffe430806cd00a32b06202088b3 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -35,6 +35,7 @@ obj-y += process.o
obj-y += signal_$(BITS).o
obj-y += sigutil_$(BITS).o
obj-$(CONFIG_SPARC32) += ioport.o
+obj-y += setup.o
obj-y += setup_$(BITS).o
obj-y += idprom.o
obj-y += sys_sparc_$(BITS).o
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
new file mode 100644
index 0000000000000000000000000000000000000000..4975867d9001b63b25770334116f2038a561c28c
--- /dev/null
+++ b/arch/sparc/kernel/setup.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <asm/setup.h>
+#include <linux/sysctl.h>
+
+static const struct ctl_table sparc_sysctl_table[] = {
+ {
+ .procname = "reboot-cmd",
+ .data = reboot_command,
+ .maxlen = 256,
+ .mode = 0644,
+ .proc_handler = proc_dostring,
+ },
+ {
+ .procname = "stop-a",
+ .data = &stop_a_enabled,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "scons-poweroff",
+ .data = &scons_pwroff,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#ifdef CONFIG_SPARC64
+ {
+ .procname = "tsb-ratio",
+ .data = &sysctl_tsb_ratio,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#endif
+};
+
+
+static int __init init_sparc_sysctls(void)
+{
+ register_sysctl_init("kernel", sparc_sysctl_table);
+ return 0;
+}
+
+arch_initcall(init_sparc_sysctls);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index dc3747cc72d470662879e4f2b7f2651505b7ca90..0dc41eea1dbd34396c323118cfd0e3133c6993a1 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -70,9 +70,6 @@
#include <asm/nmi.h>
#include <asm/io.h>
#endif
-#ifdef CONFIG_SPARC
-#include <asm/setup.h>
-#endif
#ifdef CONFIG_RT_MUTEXES
#include <linux/rtmutex.h>
#endif
@@ -1623,38 +1620,6 @@ static const struct ctl_table kern_table[] = {
.extra2 = SYSCTL_ONE,
},
#endif
-#ifdef CONFIG_SPARC
- {
- .procname = "reboot-cmd",
- .data = reboot_command,
- .maxlen = 256,
- .mode = 0644,
- .proc_handler = proc_dostring,
- },
- {
- .procname = "stop-a",
- .data = &stop_a_enabled,
- .maxlen = sizeof (int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "scons-poweroff",
- .data = &scons_pwroff,
- .maxlen = sizeof (int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
-#endif
-#ifdef CONFIG_SPARC64
- {
- .procname = "tsb-ratio",
- .data = &sysctl_tsb_ratio,
- .maxlen = sizeof (int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
-#endif
#ifdef CONFIG_PARISC
{
.procname = "soft-power",

--
2.47.2