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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-05 15:33:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-07 11:18:51 +0200 |
| commit | 5a1cc96352b29e83c70714235ed6cbed0dcf5b8b (patch) | |
| tree | 5cc5b9b5a48301c8f2318d353059024c391c70d7 /drivers/tty | |
| parent | tty: vt: make vtconsole_class constant (diff) | |
| download | linux-5a1cc96352b29e83c70714235ed6cbed0dcf5b8b.tar.xz linux-5a1cc96352b29e83c70714235ed6cbed0dcf5b8b.zip | |
tty: vc_screen: make vc_class constant
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.
Cc: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/2023100549-sixth-anger-ac34@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/vt/vc_screen.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index 99c8e39d91b4..67e2cb7c96ee 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -786,23 +786,22 @@ static const struct file_operations vcs_fops = { .release = vcs_release, }; -static struct class *vc_class; +static const struct class vc_class = { + .name = "vc", +}; void vcs_make_sysfs(int index) { - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 1), NULL, - "vcs%u", index + 1); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 65), NULL, - "vcsu%u", index + 1); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 129), NULL, - "vcsa%u", index + 1); + device_create(&vc_class, NULL, MKDEV(VCS_MAJOR, index + 1), NULL, "vcs%u", index + 1); + device_create(&vc_class, NULL, MKDEV(VCS_MAJOR, index + 65), NULL, "vcsu%u", index + 1); + device_create(&vc_class, NULL, MKDEV(VCS_MAJOR, index + 129), NULL, "vcsa%u", index + 1); } void vcs_remove_sysfs(int index) { - device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 1)); - device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 65)); - device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 129)); + device_destroy(&vc_class, MKDEV(VCS_MAJOR, index + 1)); + device_destroy(&vc_class, MKDEV(VCS_MAJOR, index + 65)); + device_destroy(&vc_class, MKDEV(VCS_MAJOR, index + 129)); } int __init vcs_init(void) @@ -811,11 +810,12 @@ int __init vcs_init(void) if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops)) panic("unable to get major %d for vcs device", VCS_MAJOR); - vc_class = class_create("vc"); + if (class_register(&vc_class)) + panic("unable to create vc_class"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 64), NULL, "vcsu"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa"); + device_create(&vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs"); + device_create(&vc_class, NULL, MKDEV(VCS_MAJOR, 64), NULL, "vcsu"); + device_create(&vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa"); for (i = 0; i < MIN_NR_CONSOLES; i++) vcs_make_sysfs(i); return 0; |