[PATCH] powerpc: Fix build error for vga16fb

Subsystems: framebuffer layer, the rest

STALE4359d

4 messages, 3 authors, 2014-08-26 · open the first message on its own page

[PATCH] powerpc: Fix build error for vga16fb

From: Pranith Kumar <hidden>
Date: 2014-08-18 21:13:56

Fix a build error caused by

drivers/built-in.o: In function `vga16fb_probe':
drivers/video/fbdev/vga16fb.c:1326: undefined reference to `vgacon_remap_base' 
drivers/video/fbdev/vga16fb.c:1326: undefined reference to `vgacon_remap_base'
make: *** [vmlinux] Error 1

This is occuring as vgacon_remap_base is exported only when
CONFIG_VGA_CONSOLE=y. Fix the error by making FB_VBA16 depend on
CONFIG_VGA_CONSOLE.

Signed-off-by: Pranith Kumar <redacted>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
CC: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/video/fbdev/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index e911b9c..09df564 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -547,7 +547,7 @@ config FB_IMSTT
 
 config FB_VGA16
 	tristate "VGA 16-color graphics support"
-	depends on FB && (X86 || PPC)
+	depends on FB && (X86 || PPC) && CONFIG_VGA_CONSOLE
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
-- 
1.9.1

Re: [PATCH] powerpc: Fix build error for vga16fb

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2014-08-18 21:28:36

Hi Pranith,

On Mon, Aug 18, 2014 at 11:13 PM, Pranith Kumar [off-list ref] wrote:
quoted hunk
Fix a build error caused by

drivers/built-in.o: In function `vga16fb_probe':
drivers/video/fbdev/vga16fb.c:1326: undefined reference to `vgacon_remap_base'
drivers/video/fbdev/vga16fb.c:1326: undefined reference to `vgacon_remap_base'
make: *** [vmlinux] Error 1

This is occuring as vgacon_remap_base is exported only when
CONFIG_VGA_CONSOLE=y. Fix the error by making FB_VBA16 depend on
CONFIG_VGA_CONSOLE.

Signed-off-by: Pranith Kumar <redacted>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
CC: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/video/fbdev/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index e911b9c..09df564 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -547,7 +547,7 @@ config FB_IMSTT

 config FB_VGA16
        tristate "VGA 16-color graphics support"
-       depends on FB && (X86 || PPC)
+       depends on FB && (X86 || PPC) && CONFIG_VGA_CONSOLE
The dependency on CONFIG_VGA_CONSOLE only exists on PPC, not on x86.
So this is not correct.

Digging a bit deeper: There's no code left in arch/powerpc that actually
sets vgacon_remap_base, so it's not gonna work anyway.
It seems vga16 support on PPC died with the removal of arch/ppc/.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH] powerpc: Fix build error for vga16fb

From: Pranith Kumar <hidden>
Date: 2014-08-18 21:34:42

On Mon, Aug 18, 2014 at 5:28 PM, Geert Uytterhoeven
[off-list ref] wrote:
Digging a bit deeper: There's no code left in arch/powerpc that actually
sets vgacon_remap_base, so it's not gonna work anyway.
It seems vga16 support on PPC died with the removal of arch/ppc/.
OK. I will remove the dependency on PPC for vga16fb.

-- 
Pranith

Re: [PATCH] powerpc: Fix build error for vga16fb

From: Tomi Valkeinen <hidden>
Date: 2014-08-26 10:03:35

On 19/08/14 00:28, Geert Uytterhoeven wrote:
Hi Pranith,

On Mon, Aug 18, 2014 at 11:13 PM, Pranith Kumar [off-list ref] wrote:
quoted
Fix a build error caused by

drivers/built-in.o: In function `vga16fb_probe':
drivers/video/fbdev/vga16fb.c:1326: undefined reference to `vgacon_remap_base'
drivers/video/fbdev/vga16fb.c:1326: undefined reference to `vgacon_remap_base'
make: *** [vmlinux] Error 1

This is occuring as vgacon_remap_base is exported only when
CONFIG_VGA_CONSOLE=y. Fix the error by making FB_VBA16 depend on
CONFIG_VGA_CONSOLE.

Signed-off-by: Pranith Kumar <redacted>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
CC: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/video/fbdev/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index e911b9c..09df564 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -547,7 +547,7 @@ config FB_IMSTT

 config FB_VGA16
        tristate "VGA 16-color graphics support"
-       depends on FB && (X86 || PPC)
+       depends on FB && (X86 || PPC) && CONFIG_VGA_CONSOLE
The dependency on CONFIG_VGA_CONSOLE only exists on PPC, not on x86.
So this is not correct.

Digging a bit deeper: There's no code left in arch/powerpc that actually
sets vgacon_remap_base, so it's not gonna work anyway.
It seems vga16 support on PPC died with the removal of arch/ppc/.
Hmm, so I wonder if vga16fb is supposed to work on ppc or not. Pranith's
follow-up patch disables vga16fb for PPC, which obviously fixes the
compilation problem, but is that really a correct fix?

 Tomi

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