vgacon: cache vc_cell_height in vgacon_cursor()

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
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 07f6b97..7ad047b 100644 (file)
--- 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;