Re: [PATCH v2 1/2] m68k: Make thread_info.h usable from assembly.

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On Sun, Sep 27, 2009 at 12:58, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
On Sun, Sep 27, 2009 at 11:55:55AM +0200, Geert Uytterhoeven wrote:
On Wed, Sep 16, 2009 at 18:44, Tim Abbott <tabbott@xxxxxxxxxxx> wrote:
Signed-off-by: Tim Abbott <tabbott@xxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Roman Zippel <zippel@xxxxxxxxxxxxxx>
Cc: linux-m68k@xxxxxxxxxxxxxxxxxxxx
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
---
 arch/m68k/include/asm/thread_info_mm.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/m68k/include/asm/thread_info_mm.h b/arch/m68k/include/asm/thread_info_mm.h
index b6da388..5f36cf1 100644
--- a/arch/m68k/include/asm/thread_info_mm.h
+++ b/arch/m68k/include/asm/thread_info_mm.h
@@ -8,6 +8,7 @@
 #include <asm/types.h>
 #include <asm/page.h>

+#ifndef __ASSEMBLY__
 struct thread_info {
       struct task_struct      *task;          /* main task structure */
       unsigned long           flags;
@@ -16,6 +17,7 @@ struct thread_info {
       __u32 cpu; /* should always be 0 on m68k */
       struct restart_block    restart_block;
 };
+#endif /* __ASSEMBLY__ */

 #define PREEMPT_ACTIVE         0x4000000

This is not sufficient. <asm/thread_info_mm.h> pulls in <asm/current.h>,
which contains C only. So you also need:

--- a/arch/m68k/include/asm/thread_info_mm.h
+++ b/arch/m68k/include/asm/thread_info_mm.h
@@ -4,11 +4,12 @@
 #ifndef ASM_OFFSETS_C
 #include <asm/asm-offsets.h>
 #endif
-#include <asm/current.h>
 #include <asm/types.h>
 #include <asm/page.h>

 #ifndef __ASSEMBLY__
+#include <asm/current.h>
+
 struct thread_info {
      struct task_struct      *task;          /* main task structure */
      unsigned long           flags;


upstream m68k does not build for me so I could not test.
But I think the correct fix is to drop the include or current from thread_info.
No-one except m68k needs to include current.h in thread_info.h.

Dropping it causes lots of undeclared errors, so I'm gonna apply Tim's
patch with my additional fix.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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
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