Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-31 Thread H. Peter Anvin
On 03/31/2014 03:16 PM, Behan Webster wrote: >>> >> __compiletime_error traps at compile time rather than link time, which >> is what you want. > The idea is to remove the compile time warning that the return code > "prev" isn't initialized in the default case. Indicating that > wrong_size_cmpxchg

Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-31 Thread Behan Webster
On 03/31/14 15:11, H. Peter Anvin wrote: On 03/31/2014 03:10 PM, Behan Webster 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

Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-31 Thread H. Peter Anvin
On 03/31/2014 03:10 PM, Behan Webster 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

Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-31 Thread Behan Webster
On 03/31/14 13:52, H. Peter Anvin wrote: On 03/21/2014 11:38 PM, beh...@converseincode.com wrote: From: Behan Webster Fix uninitialized return code in default case in cmpxchg-local.h This patch fixes the code to prevent an uninitialized return value that is detected when compiling with clang

Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-31 Thread H. Peter Anvin
On 03/21/2014 11:38 PM, beh...@converseincode.com wrote: > From: Behan Webster > > Fix uninitialized return code in default case in cmpxchg-local.h > > This patch fixes the code to prevent an uninitialized return value that is > detected > when compiling with clang. The bug produces numerous wa

Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-22 Thread Behan Webster
On 03/22/14 03:01, Arnd Bergmann wrote: On Saturday 22 March 2014, beh...@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-lo

Re: [PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-22 Thread Arnd Bergmann
On Saturday 22 March 2014, beh...@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

[PATCH] LLVMLinux: Remove warning about returning an uninitialized variable

2014-03-21 Thread behanw
From: Behan Webster Fix uninitialized return code in default case in cmpxchg-local.h This patch fixes the code to prevent an uninitialized return value that is detected when compiling with clang. The bug produces numerous warnings when compiling the Linux kernel with clang. Signed-off-by: Beha