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| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2024-01-22 12:03:44 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-27 18:08:54 -0800 |
| commit | 8d5cc8eed738e3202379722295c626cba0849785 (patch) | |
| tree | 9fb0c71b332bef9478f5aa25f25721e5f25c4585 /include/linux/console.h | |
| parent | a292e3fc94cb9795bbba4ddac075a9055cd58a5e (diff) | |
| download | linux-stable-8d5cc8eed738e3202379722295c626cba0849785.tar.gz linux-stable-8d5cc8eed738e3202379722295c626cba0849785.tar.bz2 linux-stable-8d5cc8eed738e3202379722295c626cba0849785.zip | |
tty: vt: make consw::con_switch() return a bool
The non-zero (true) return value from consw::con_switch() means a redraw
is needed. So make this return type a bool explicitly instead of int.
The latter might imply that -Eerrors are expected. They are not.
And document the hook.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-31-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/console.h')
| -rw-r--r-- | include/linux/console.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/console.h b/include/linux/console.h index a6a46b5efd66..f7c6b5fc3a36 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -46,6 +46,8 @@ enum vc_intensity; * @con_scroll: move lines from @top to @bottom in direction @dir by @lines. * Return true if no generic handling should be done. * Invoked by csi_M and printing to the console. + * @con_switch: notifier about the console switch; it is supposed to return + * true if a redraw is needed. * @con_set_palette: sets the palette of the console to @table (optional) * @con_scrolldelta: the contents of the console should be scrolled by @lines. * Invoked by user. (optional) @@ -66,7 +68,7 @@ struct consw { bool (*con_scroll)(struct vc_data *vc, unsigned int top, unsigned int bottom, enum con_scroll dir, unsigned int lines); - int (*con_switch)(struct vc_data *vc); + bool (*con_switch)(struct vc_data *vc); int (*con_blank)(struct vc_data *vc, int blank, int mode_switch); int (*con_font_set)(struct vc_data *vc, struct console_font *font, unsigned int vpitch, unsigned int flags); |