[PATCH 5/7] vgacon: cache vc_cell_height in vgacon_cursor()
From: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Date: 2023-07-12 09:02:05
Also in:
linux-fbdev, linux-serial, lkml
Subsystem:
console subsystem, framebuffer layer, the rest · Maintainers:
Greg Kroah-Hartman, Helge Deller, Linus Torvalds
There are many places c->vc_cell_height is used in the code of vgacon_cursor(). Caching the value to a local variable makes the code much easier to follow. Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org --- drivers/video/console/vgacon.c | 34 +++++++++++++++------------------- 1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 07f6b97d9b81..7ad047bcae17 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c@@ -470,11 +470,15 @@ static void vgacon_set_cursor_size(int from, int to) static void vgacon_cursor(struct vc_data *c, int mode) { + unsigned int c_height; + if (c->vc_mode != KD_TEXT) return; vgacon_restore_screen(c); + c_height = c->vc_cell_height; + switch (mode) { case CM_ERASE: write_vga(14, (c->vc_pos - vga_vram_base) / 2);
@@ -489,30 +493,22 @@ static void vgacon_cursor(struct vc_data *c, int mode) write_vga(14, (c->vc_pos - vga_vram_base) / 2); switch (CUR_SIZE(c->vc_cursor_type)) { case CUR_UNDERLINE: - vgacon_set_cursor_size(c->vc_cell_height - - (c->vc_cell_height < - 10 ? 2 : 3), - c->vc_cell_height - - (c->vc_cell_height < - 10 ? 1 : 2)); + vgacon_set_cursor_size(c_height - + (c_height < 10 ? 2 : 3), + c_height - + (c_height < 10 ? 1 : 2)); break; case CUR_TWO_THIRDS: - vgacon_set_cursor_size(c->vc_cell_height / 3, - c->vc_cell_height - - (c->vc_cell_height < - 10 ? 1 : 2)); + vgacon_set_cursor_size(c_height / 3, c_height - + (c_height < 10 ? 1 : 2)); break; case CUR_LOWER_THIRD: - vgacon_set_cursor_size((c->vc_cell_height * 2) / 3, - c->vc_cell_height - - (c->vc_cell_height < - 10 ? 1 : 2)); + vgacon_set_cursor_size(c_height * 2 / 3, c_height - + (c_height < 10 ? 1 : 2)); break; case CUR_LOWER_HALF: - vgacon_set_cursor_size(c->vc_cell_height / 2, - c->vc_cell_height - - (c->vc_cell_height < - 10 ? 1 : 2)); + vgacon_set_cursor_size(c_height / 2, c_height - + (c_height < 10 ? 1 : 2)); break; case CUR_NONE: if (vga_video_type >= VIDEO_TYPE_VGAC)
@@ -521,7 +517,7 @@ static void vgacon_cursor(struct vc_data *c, int mode) vgacon_set_cursor_size(31, 31); break; default: - vgacon_set_cursor_size(1, c->vc_cell_height); + vgacon_set_cursor_size(1, c_height); break; } break;
--
2.41.0