x86/headers: Remove <asm/sigcontext.h> references on the kernel side

Now that all type definitions are in the UAPI header, include it
directly, instead of through <asm/sigcontext.h>.

[ We still keep asm/sigcontext.h, so that uapi/asm/sigcontext32.h
can include <asm/sigcontext.h>. ]

Acked-by: Mikko Rapeli <[e-mail]>
Cc: Andy Lutomirski <[e-mail]>
Cc: Borislav Petkov <[e-mail]>
Cc: Brian Gerst <[e-mail]>
Cc: Denys Vlasenko <[e-mail]>
Cc: H. Peter Anvin <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: Oleg Nesterov <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: [e-mail]
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

arch/x86/ia32/ia32_signal.c

···
 #include <asm/ptrace.h>
 #include <asm/ia32_unistd.h>
 #include <asm/user32.h>
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
 #include <asm/proto.h>
 #include <asm/vdso.h>
 #include <asm/sigframe.h>

arch/x86/include/asm/fpu/signal.h

···
 #define _ASM_X86_FPU_SIGNAL_H
 
 #ifdef CONFIG_X86_64
-# include <asm/sigcontext.h>
+# include <uapi/asm/sigcontext.h>
 # include <asm/user32.h>
 struct ksignal;
 int ia32_setup_rt_frame(int sig, struct ksignal *ksig,

arch/x86/include/asm/ia32.h

···
  * 32 bit structures for IA32 support.
  */
 
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
 
 /* signal.h */
 

arch/x86/include/asm/processor.h

···
 #include <asm/math_emu.h>
 #include <asm/segment.h>
 #include <asm/types.h>
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
 #include <asm/current.h>
 #include <asm/cpufeature.h>
 #include <asm/page.h>

arch/x86/include/asm/sigcontext.h

···
 #ifndef _ASM_X86_SIGCONTEXT_H
 #define _ASM_X86_SIGCONTEXT_H
 
+/* This is a legacy header - all kernel code includes <uapi/asm/sigcontext.h> directly. */
+
 #include <uapi/asm/sigcontext.h>
 
 #endif /* _ASM_X86_SIGCONTEXT_H */

arch/x86/include/asm/sigframe.h

···
 #ifndef _ASM_X86_SIGFRAME_H
 #define _ASM_X86_SIGFRAME_H
 
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
 #include <asm/siginfo.h>
 #include <asm/ucontext.h>
 #include <linux/compat.h>

arch/x86/include/asm/signal.h

···
 
 #define __ARCH_HAS_SA_RESTORER
 
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
 
 #ifdef __i386__
 

arch/x86/math-emu/fpu_emu.h

···
 
 #include "fpu_system.h"
 
-#include <asm/sigcontext.h>	/* for struct _fpstate */
+#include <uapi/asm/sigcontext.h>	/* for struct _fpstate */
 #include <asm/math_emu.h>
 #include <linux/linkage.h>