From 5fd8c2d3de3dd3cc6d36a0c7a08e44cd5bf173e6 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Sat, 22 Oct 2022 11:29:48 -0700 Subject: tty: Move sysctl setup into "core" tty logic In preparation for adding another sysctl to the tty subsystem, move the tty setup code into the "core" tty code, which contains tty_init() itself. Cc: Greg Kroah-Hartman Cc: Jiri Slaby Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20221022182949.2684794-1-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) (limited to 'drivers/tty/tty_io.c') diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index de06c3c2ff70..fe77a3d41326 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3572,13 +3572,44 @@ void console_sysfs_notify(void) sysfs_notify(&consdev->kobj, NULL, "active"); } +static struct ctl_table tty_table[] = { + { + .procname = "ldisc_autoload", + .data = &tty_ldisc_autoload, + .maxlen = sizeof(tty_ldisc_autoload), + .mode = 0644, + .proc_handler = proc_dointvec, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, + { } +}; + +static struct ctl_table tty_dir_table[] = { + { + .procname = "tty", + .mode = 0555, + .child = tty_table, + }, + { } +}; + +static struct ctl_table tty_root_table[] = { + { + .procname = "dev", + .mode = 0555, + .child = tty_dir_table, + }, + { } +}; + /* * Ok, now we can initialize the rest of the tty devices and can count * on memory allocations, interrupts etc.. */ int __init tty_init(void) { - tty_sysctl_init(); + register_sysctl_table(tty_root_table); cdev_init(&tty_cdev, &tty_fops); if (cdev_add(&tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") < 0) @@ -3600,4 +3631,3 @@ int __init tty_init(void) #endif return 0; } - -- cgit