there's below one line shift problem:
ACPI=0xdabfe000 ACPI 2.0=0xdabfe014 SMBIOS=0xdaa9e000
[ 0.000000] efi:
In fact check efi_y and the lfb_height should be compared at the begin of the
loop of early_efi_write
Signed-off-by: Dave Young <[email protected]>
---
arch/x86/platform/efi/early_printk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.orig/arch/x86/platform/efi/early_printk.c
+++ linux-2.6/arch/x86/platform/efi/early_printk.c
@@ -106,6 +106,15 @@ early_efi_write(struct console *con, con
if (count > linemax)
count = linemax;
+ if (efi_y + font->height >= si->lfb_height) {
+ u32 i;
+
+ efi_y -= font->height;
+ early_efi_scroll_up();
+
+ for (i = 0; i < font->height; i++)
+ early_efi_clear_scanline(efi_y + i);
+ }
for (h = 0; h < font->height; h++) {
unsigned int n, x;
@@ -142,15 +151,6 @@ early_efi_write(struct console *con, con
efi_y += font->height;
}
- if (efi_y + font->height >= si->lfb_height) {
- u32 i;
-
- efi_y -= font->height;
- early_efi_scroll_up();
-
- for (i = 0; i < font->height; i++)
- early_efi_clear_scanline(efi_y + i);
- }
}
}
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