2007-12-09 21:39:17

by Marcin Ślusarz

[permalink] [raw]
Subject: [PATCH] logo: move declarations of logos to linux_logo.h

logo: move declarations of logos to linux_logo.h

there was a mismatch between externs in logo.c and code generated by pnmtologo
(on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)

Signed-off-by: Marcin Ślusarz <[email protected]>
---
drivers/video/logo/logo.c | 13 -------------
include/linux/linux_logo.h | 13 +++++++++++++
scripts/pnmtologo.c | 6 +++---
3 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c
index fc72684..f5a0cd3 100644
--- a/drivers/video/logo/logo.c
+++ b/drivers/video/logo/logo.c
@@ -21,19 +21,6 @@
#include <asm/bootinfo.h>
#endif

-extern const struct linux_logo logo_linux_mono;
-extern const struct linux_logo logo_linux_vga16;
-extern const struct linux_logo logo_linux_clut224;
-extern const struct linux_logo logo_dec_clut224;
-extern const struct linux_logo logo_mac_clut224;
-extern const struct linux_logo logo_parisc_clut224;
-extern const struct linux_logo logo_sgi_clut224;
-extern const struct linux_logo logo_sun_clut224;
-extern const struct linux_logo logo_superh_mono;
-extern const struct linux_logo logo_superh_vga16;
-extern const struct linux_logo logo_superh_clut224;
-extern const struct linux_logo logo_m32r_clut224;
-
static int nologo;
module_param(nologo, bool, 0);
MODULE_PARM_DESC(nologo, "Disables startup logo");
diff --git a/include/linux/linux_logo.h b/include/linux/linux_logo.h
index 08a9296..da9fb79 100644
--- a/include/linux/linux_logo.h
+++ b/include/linux/linux_logo.h
@@ -42,4 +42,17 @@ static inline void fb_append_extra_logo(const struct linux_logo *logo,
{}
#endif

+extern const struct linux_logo logo_linux_mono;
+extern const struct linux_logo logo_linux_vga16;
+extern const struct linux_logo logo_linux_clut224;
+extern const struct linux_logo logo_dec_clut224;
+extern const struct linux_logo logo_mac_clut224;
+extern const struct linux_logo logo_parisc_clut224;
+extern const struct linux_logo logo_sgi_clut224;
+extern const struct linux_logo logo_sun_clut224;
+extern const struct linux_logo logo_superh_mono;
+extern const struct linux_logo logo_superh_vga16;
+extern const struct linux_logo logo_superh_clut224;
+extern const struct linux_logo logo_m32r_clut224;
+
#endif /* _LINUX_LINUX_LOGO_H */
diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
index 6aa2a24..3048431 100644
--- a/scripts/pnmtologo.c
+++ b/scripts/pnmtologo.c
@@ -237,14 +237,14 @@ static void write_header(void)
fprintf(out, " * Linux logo %s\n", logoname);
fputs(" */\n\n", out);
fputs("#include <linux/linux_logo.h>\n\n", out);
- fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
+ fprintf(out, "static const unsigned char %s_data[] __initdata = {\n",
logoname);
}

static void write_footer(void)
{
fputs("\n};\n\n", out);
- fprintf(out, "struct linux_logo %s __initdata = {\n", logoname);
+ fprintf(out, "const struct linux_logo %s __initdata = {\n", logoname);
fprintf(out, " .type\t= %s,\n", logo_types[logo_type]);
fprintf(out, " .width\t= %d,\n", logo_width);
fprintf(out, " .height\t= %d,\n", logo_height);
@@ -374,7 +374,7 @@ static void write_logo_clut224(void)
fputs("\n};\n\n", out);

/* write logo clut */
- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
+ fprintf(out, "static const unsigned char %s_clut[] __initdata = {\n",
logoname);
write_hex_cnt = 0;
for (i = 0; i < logo_clutsize; i++) {


2007-12-13 10:31:42

by Andrew Morton

[permalink] [raw]
Subject: Re: [PATCH] logo: move declarations of logos to linux_logo.h

On Sun, 9 Dec 2007 22:40:31 +0100 Marcin Ślusarz <[email protected]> wrote:

> logo: move declarations of logos to linux_logo.h
>
> there was a mismatch between externs in logo.c and code generated by pnmtologo
> (on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)

This patch (after I fixed it) keeps on causing trouble: mismatches between
the header file declarations and the actual definitions of the lookup
tables. This happens as I apply and unapply the patch.

It _shouldn't_ happen, but there would appear to be some missing makefile
rules. I guess the C files aren't being regenerated when
scripts/pnmtologo.c has been altered, so the C files aren't matching the
header which this patch alters.

2007-12-13 19:49:41

by Marcin Ślusarz

[permalink] [raw]
Subject: Re: [PATCH] logo: move declarations of logos to linux_logo.h

On Thu, Dec 13, 2007 at 02:31:11AM -0800, Andrew Morton wrote:
> On Sun, 9 Dec 2007 22:40:31 +0100 Marcin Ślusarz <[email protected]> wrote:
>
> > logo: move declarations of logos to linux_logo.h
> >
> > there was a mismatch between externs in logo.c and code generated by pnmtologo
> > (on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)
>
> This patch (after I fixed it) keeps on causing trouble: mismatches between
> the header file declarations and the actual definitions of the lookup
> tables. This happens as I apply and unapply the patch.
>
> It _shouldn't_ happen, but there would appear to be some missing makefile
> rules. I guess the C files aren't being regenerated when
> scripts/pnmtologo.c has been altered, so the C files aren't matching the
> header which this patch alters.
Ok, I'll try to fix that.

Marcin

2007-12-13 19:54:18

by Sam Ravnborg

[permalink] [raw]
Subject: Re: [PATCH] logo: move declarations of logos to linux_logo.h

On Thu, Dec 13, 2007 at 08:50:46PM +0100, Marcin Ślusarz wrote:
> On Thu, Dec 13, 2007 at 02:31:11AM -0800, Andrew Morton wrote:
> > On Sun, 9 Dec 2007 22:40:31 +0100 Marcin Ślusarz <[email protected]> wrote:
> >
> > > logo: move declarations of logos to linux_logo.h
> > >
> > > there was a mismatch between externs in logo.c and code generated by pnmtologo
> > > (on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)
> >
> > This patch (after I fixed it) keeps on causing trouble: mismatches between
> > the header file declarations and the actual definitions of the lookup
> > tables. This happens as I apply and unapply the patch.
> >
> > It _shouldn't_ happen, but there would appear to be some missing makefile
> > rules. I guess the C files aren't being regenerated when
> > scripts/pnmtologo.c has been altered, so the C files aren't matching the
> > header which this patch alters.
> Ok, I'll try to fix that.

The kbuild rules around the logo stuff are non-trivial.
Drop me a line (+patch) if you need help.
You may in that case also cc: [email protected].
There are some quite skilled kbuild people hanging out there too.

I may not respond promptly - busy these days (+ christmas)

Sam

2007-12-13 21:30:26

by Marcin Ślusarz

[permalink] [raw]
Subject: Re: [PATCH] logo: move declarations of logos to linux_logo.h

On Thu, Dec 13, 2007 at 02:31:11AM -0800, Andrew Morton wrote:
> On Sun, 9 Dec 2007 22:40:31 +0100 Marcin Ślusarz <[email protected]> wrote:
>
> > logo: move declarations of logos to linux_logo.h
> >
> > there was a mismatch between externs in logo.c and code generated by pnmtologo
> > (on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)
>
> This patch (after I fixed it) keeps on causing trouble: mismatches between
> the header file declarations and the actual definitions of the lookup
> tables. This happens as I apply and unapply the patch.
>
> It _shouldn't_ happen, but there would appear to be some missing makefile
> rules. I guess the C files aren't being regenerated when
> scripts/pnmtologo.c has been altered, so the C files aren't matching the
> header which this patch alters.

Ok, updated patch below:

logo: move declarations of logos to linux_logo.h

there was a mismatch between externs in logo.c and code generated by pnmtologo

Signed-off-by: Marcin Slusarz <[email protected]>
CC: Antonino Daplas <[email protected]>
CC: Andrew Morton <[email protected]>
CC: Sam Ravnborg <[email protected]>
---
drivers/video/logo/Makefile | 8 ++++----
drivers/video/logo/logo.c | 13 -------------
include/linux/linux_logo.h | 13 +++++++++++++
scripts/pnmtologo.c | 6 +++---
4 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile
index a5fc4ed..61b8c24 100644
--- a/drivers/video/logo/Makefile
+++ b/drivers/video/logo/Makefile
@@ -41,16 +41,16 @@ quiet_cmd_logo = LOGO $@
-t $(patsubst $*_%,%,$(notdir $(basename $<))) \
-n $(notdir $(basename $<)) -o $@ $<

-$(obj)/%_mono.c: $(src)/%_mono.pbm FORCE
+$(obj)/%_mono.c: $(src)/%_mono.pbm scripts/pnmtologo FORCE
$(call if_changed,logo)

-$(obj)/%_vga16.c: $(src)/%_vga16.ppm FORCE
+$(obj)/%_vga16.c: $(src)/%_vga16.ppm scripts/pnmtologo FORCE
$(call if_changed,logo)

-$(obj)/%_clut224.c: $(src)/%_clut224.ppm FORCE
+$(obj)/%_clut224.c: $(src)/%_clut224.ppm scripts/pnmtologo FORCE
$(call if_changed,logo)

-$(obj)/%_gray256.c: $(src)/%_gray256.pgm FORCE
+$(obj)/%_gray256.c: $(src)/%_gray256.pgm scripts/pnmtologo FORCE
$(call if_changed,logo)

# Files generated that shall be removed upon make clean
diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c
index fc72684..f5a0cd3 100644
--- a/drivers/video/logo/logo.c
+++ b/drivers/video/logo/logo.c
@@ -21,19 +21,6 @@
#include <asm/bootinfo.h>
#endif

-extern const struct linux_logo logo_linux_mono;
-extern const struct linux_logo logo_linux_vga16;
-extern const struct linux_logo logo_linux_clut224;
-extern const struct linux_logo logo_dec_clut224;
-extern const struct linux_logo logo_mac_clut224;
-extern const struct linux_logo logo_parisc_clut224;
-extern const struct linux_logo logo_sgi_clut224;
-extern const struct linux_logo logo_sun_clut224;
-extern const struct linux_logo logo_superh_mono;
-extern const struct linux_logo logo_superh_vga16;
-extern const struct linux_logo logo_superh_clut224;
-extern const struct linux_logo logo_m32r_clut224;
-
static int nologo;
module_param(nologo, bool, 0);
MODULE_PARM_DESC(nologo, "Disables startup logo");
diff --git a/include/linux/linux_logo.h b/include/linux/linux_logo.h
index 08a9296..da9fb79 100644
--- a/include/linux/linux_logo.h
+++ b/include/linux/linux_logo.h
@@ -42,4 +42,17 @@ static inline void fb_append_extra_logo(const struct linux_logo *logo,
{}
#endif

+extern const struct linux_logo logo_linux_mono;
+extern const struct linux_logo logo_linux_vga16;
+extern const struct linux_logo logo_linux_clut224;
+extern const struct linux_logo logo_dec_clut224;
+extern const struct linux_logo logo_mac_clut224;
+extern const struct linux_logo logo_parisc_clut224;
+extern const struct linux_logo logo_sgi_clut224;
+extern const struct linux_logo logo_sun_clut224;
+extern const struct linux_logo logo_superh_mono;
+extern const struct linux_logo logo_superh_vga16;
+extern const struct linux_logo logo_superh_clut224;
+extern const struct linux_logo logo_m32r_clut224;
+
#endif /* _LINUX_LINUX_LOGO_H */
diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
index 6aa2a24..3048431 100644
--- a/scripts/pnmtologo.c
+++ b/scripts/pnmtologo.c
@@ -237,14 +237,14 @@ static void write_header(void)
fprintf(out, " * Linux logo %s\n", logoname);
fputs(" */\n\n", out);
fputs("#include <linux/linux_logo.h>\n\n", out);
- fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
+ fprintf(out, "static const unsigned char %s_data[] __initdata = {\n",
logoname);
}

static void write_footer(void)
{
fputs("\n};\n\n", out);
- fprintf(out, "struct linux_logo %s __initdata = {\n", logoname);
+ fprintf(out, "const struct linux_logo %s __initdata = {\n", logoname);
fprintf(out, " .type\t= %s,\n", logo_types[logo_type]);
fprintf(out, " .width\t= %d,\n", logo_width);
fprintf(out, " .height\t= %d,\n", logo_height);
@@ -374,7 +374,7 @@ static void write_logo_clut224(void)
fputs("\n};\n\n", out);

/* write logo clut */
- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
+ fprintf(out, "static const unsigned char %s_clut[] __initdata = {\n",
logoname);
write_hex_cnt = 0;
for (i = 0; i < logo_clutsize; i++) {

2007-12-14 20:49:18

by Geert Uytterhoeven

[permalink] [raw]
Subject: Re: [Linux-fbdev-devel] [PATCH] logo: move declarations of logos to linux_logo.h

On Thu, 13 Dec 2007, Marcin Slusarz wrote:
> On Thu, Dec 13, 2007 at 02:31:11AM -0800, Andrew Morton wrote:
> > On Sun, 9 Dec 2007 22:40:31 +0100 Marcin Ślusarz <[email protected]> wrote:
> >
> > > logo: move declarations of logos to linux_logo.h
> > >
> > > there was a mismatch between externs in logo.c and code generated by pnmtologo
> > > (on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)
> >
> > This patch (after I fixed it) keeps on causing trouble: mismatches between
> > the header file declarations and the actual definitions of the lookup
> > tables. This happens as I apply and unapply the patch.
> >
> > It _shouldn't_ happen, but there would appear to be some missing makefile
> > rules. I guess the C files aren't being regenerated when
> > scripts/pnmtologo.c has been altered, so the C files aren't matching the
> > header which this patch alters.
>
> Ok, updated patch below:
>
> logo: move declarations of logos to linux_logo.h
>
> there was a mismatch between externs in logo.c and code generated by pnmtologo

This may cause section conflicts, cfr.
http://lkml.org/lkml/2007/10/24/65

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

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

2007-12-14 21:58:38

by Sam Ravnborg

[permalink] [raw]
Subject: Re: [Linux-fbdev-devel] [PATCH] logo: move declarations of logos to linux_logo.h

On Fri, Dec 14, 2007 at 09:49:03PM +0100, Geert Uytterhoeven wrote:
> On Thu, 13 Dec 2007, Marcin Slusarz wrote:
> > On Thu, Dec 13, 2007 at 02:31:11AM -0800, Andrew Morton wrote:
> > > On Sun, 9 Dec 2007 22:40:31 +0100 Marcin Ślusarz <[email protected]> wrote:
> > >
> > > > logo: move declarations of logos to linux_logo.h
> > > >
> > > > there was a mismatch between externs in logo.c and code generated by pnmtologo
> > > > (on old tree, you need to rm drivers/video/logo/logo_*.c before compilation)
> > >
> > > This patch (after I fixed it) keeps on causing trouble: mismatches between
> > > the header file declarations and the actual definitions of the lookup
> > > tables. This happens as I apply and unapply the patch.
> > >
> > > It _shouldn't_ happen, but there would appear to be some missing makefile
> > > rules. I guess the C files aren't being regenerated when
> > > scripts/pnmtologo.c has been altered, so the C files aren't matching the
> > > header which this patch alters.
> >
> > Ok, updated patch below:
> >
> > logo: move declarations of logos to linux_logo.h
> >
> > there was a mismatch between externs in logo.c and code generated by pnmtologo
>
> This may cause section conflicts, cfr.
> http://lkml.org/lkml/2007/10/24/65

If I recall correct then if the first __initdata variable is const then
all date declared __initdata are attempted put in the const section.
So maybe a bit reordering could help it?

But that would serve a fat explanation why...

Sam