Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h | linuxppc-dev | Ratatoskr

[PATCH 00/10] Add support for GCC's __builtin_unreachable() and use it in BUG. · David Daney <hidden> · 2009-09-11
[PATCH 07/10] powerpc: Convert BUG() to use unreachable() · David Daney <hidden> · 2009-09-10
[PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h · David Daney <hidden> · 2009-09-10
Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h · Richard Henderson <hidden> · 2009-09-11
Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h · Michael Buesch <hidden> · 2009-09-11
Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h · David Daney <hidden> · 2009-09-11
Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h · Geert Uytterhoeven <geert@linux-m68k.org> · 2009-09-12
Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h · David Daney <hidden> · 2009-09-14
Re: [PATCH 00/10] Add support for GCC's __builtin_unreachable() and use it in BUG. · Benjamin Herrenschmidt <benh@kernel.crashing.org> · 2009-09-24

Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h

From: David Daney <hidden>
Date: 2009-09-11 15:59:16
Also in: linux-alpha, linux-mips, linux-s390, lkml

Michael Buesch wrote:

On Friday 11 September 2009 01:56:42 David Daney wrote:

quoted

+/* Unreachable code */
+#ifndef unreachable
+# define unreachable() do { for (;;) ; } while (0)
+#endif

# define unreachable() do { } while (1)

? :)

Clearly I was not thinking clearly when I wrote that part.  RTH noted 
the same thing.  I will fix it.

Thanks,
David Daney