From: Krzysztof Helt <redacted>
Move common code outside if/else or switch/case
clauses.
Drop checks done twice inside the neofb_check_var().
Signed-off-by: Krzysztof Helt <redacted>
---
diff -urp linux-ref/drivers/video/neofb.c linux-2.6/drivers/video/neofb.c
--- linux-ref/drivers/video/neofb.c 2008-08-20 22:03:40.000000000 +0200
+++ linux-2.6/drivers/video/neofb.c 2008-08-20 22:05:52.000000000 +0200
@@ -426,11 +426,11 @@ static void vgaHWProtect(int on)
{
unsigned char tmp;
+ tmp = vga_rseq(NULL, 0x01);
if (on) {
/*
* Turn off screen and disable sequencer.
*/
- tmp = vga_rseq(NULL, 0x01);
vga_wseq(NULL, 0x00, 0x01); /* Synchronous Reset */
vga_wseq(NULL, 0x01, tmp | 0x20); /* disable the display */
@@ -439,7 +439,6 @@ static void vgaHWProtect(int on)
/*
* Reenable sequencer, then turn on screen.
*/
- tmp = vga_rseq(NULL, 0x01);
vga_wseq(NULL, 0x01, tmp & ~0x20); /* reenable display */
vga_wseq(NULL, 0x00, 0x03); /* clear synchronousreset */
@@ -648,10 +647,10 @@ neofb_check_var(struct fb_var_screeninfo
var->blue.msb_right = 0;
var->transp.msb_right = 0;
+ var->transp.offset = 0;
+ var->transp.length = 0;
switch (var->bits_per_pixel) {
case 8: /* PSEUDOCOLOUR, 256 */
- var->transp.offset = 0;
- var->transp.length = 0;
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 0;@@ -661,8 +660,6 @@ neofb_check_var(struct fb_var_screeninfo
break;
case 16: /* DIRECTCOLOUR, 64k */
- var->transp.offset = 0;
- var->transp.length = 0;
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
@@ -672,8 +669,6 @@ neofb_check_var(struct fb_var_screeninfo
break;
case 24: /* TRUECOLOUR, 16m */
- var->transp.offset = 0;
- var->transp.length = 0;
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
@@ -704,8 +699,6 @@ neofb_check_var(struct fb_var_screeninfo
if (vramlen > 4 * 1024 * 1024)
vramlen = 4 * 1024 * 1024;
- if (var->yres_virtual < var->yres)
- var->yres_virtual = var->yres;
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
@@ -722,8 +715,6 @@ neofb_check_var(struct fb_var_screeninfo
if it was possible. We should return -EINVAL, but I disagree */
if (var->yres_virtual < var->yres)
var->yres = var->yres_virtual;
- if (var->xres_virtual < var->xres)
- var->xres = var->xres_virtual;
if (var->xoffset + var->xres > var->xres_virtual)
var->xoffset = var->xres_virtual - var->xres;
if (var->yoffset + var->yres > var->yres_virtual)
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