Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable | Date | Sat, 22 Mar 2014 11:01:16 +0100 |
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On Saturday 22 March 2014, behanw@converseincode.com wrote: > diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h > index d8d4c89..4c41bb8 100644 > --- a/include/asm-generic/cmpxchg-local.h > +++ b/include/asm-generic/cmpxchg-local.h > @@ -41,6 +41,7 @@ static inline unsigned long __cmpxchg_local_generic(volatile void *ptr, > break; > default: > wrong_size_cmpxchg(ptr); > + prev = 0; > } > raw_local_irq_restore(flags); > return prev;
How about using __unreachable() instead to annotate the fact that you won't get here?
Arnd
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