Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70802c60379fb843c485dfd4cab9e8f527d8fe81
Commit: 70802c60379fb843c485dfd4cab9e8f527d8fe81
Parent: 6314db4110ad79cc666faff2209ed2691259afd9
Author: Antonino A. Daplas <[EMAIL PROTECTED]>
AuthorDate: Tue May 8 00:38:14 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue May 8 11:15:28 2007 -0700
fbdev: don't show logo if driver or fbcon are modular
It was always intended for the logo to be drawn only if both fbcon and the
driver that is mapped to it are both compiled statically. Currently, if
fbcon
is loaded prior to the driver, the logo is not shown. Reverse the order,
and
the code may attempt to draw the logo which is __initdata. By accident,
this
bug is rarely seen because this method of loading the modules is not common
and secondly, a code in fb_prepare_logo() that checks the height of the logo
(now a random value) rarely succeeds.
Fix by drawing the logo only if both fbcon and the driver are statically
compiled.
Signed-off-by: Antonino Daplas <[EMAIL PROTECTED]>
Cc: Jean Delvare <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/video/console/fbcon.c | 15 +++++++++++++++
drivers/video/fbmem.c | 6 ++++--
2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index f1e3e3c..c8b4ae6 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -107,7 +107,9 @@ static struct display fb_display[MAX_NR_CONSOLES];
static signed char con2fb_map[MAX_NR_CONSOLES];
static signed char con2fb_map_boot[MAX_NR_CONSOLES];
+#ifndef MODULE
static int logo_height;
+#endif
static int logo_lines;
/* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO
enums. */
@@ -576,6 +578,13 @@ static int fbcon_takeover(int show_logo)
return err;
}
+#ifdef MODULE
+static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info,
+ int cols, int rows, int new_cols, int new_rows)
+{
+ logo_shown = FBCON_LOGO_DONTSHOW;
+}
+#else
static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info,
int cols, int rows, int new_cols, int new_rows)
{
@@ -584,6 +593,11 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct
fb_info *info,
int cnt, erase = vc->vc_video_erase_char, step;
unsigned short *save = NULL, *r, *q;
+ if (info->flags & FBINFO_MODULE) {
+ logo_shown = FBCON_LOGO_DONTSHOW;
+ return;
+ }
+
/*
* remove underline attribute from erase character
* if black and white framebuffer.
@@ -655,6 +669,7 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct
fb_info *info,
vc->vc_top = logo_lines;
}
}
+#endif /* MODULE */
#ifdef CONFIG_FB_TILEBLITTING
static void set_blitting_type(struct vc_data *vc, struct fb_info *info)
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 45f3839..08c292d 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -418,7 +418,8 @@ int fb_prepare_logo(struct fb_info *info, int rotate)
memset(&fb_logo, 0, sizeof(struct logo_data));
- if (info->flags & FBINFO_MISC_TILEBLITTING)
+ if (info->flags & FBINFO_MISC_TILEBLITTING ||
+ info->flags & FBINFO_MODULE)
return 0;
if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
@@ -483,7 +484,8 @@ int fb_show_logo(struct fb_info *info, int rotate)
struct fb_image image;
/* Return if the frame buffer is not mapped or suspended */
- if (fb_logo.logo == NULL || info->state != FBINFO_STATE_RUNNING)
+ if (fb_logo.logo == NULL || info->state != FBINFO_STATE_RUNNING ||
+ info->flags & FBINFO_MODULE)
return 0;
image.depth = 8;
-
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