Re: [PATCH] compiler-intel: fix wrong compiler barrier() macro

From: Pranith Kumar
Date: Wed Apr 29 2015 - 10:52:16 EST

Hi Daniel,

On Wed, Apr 29, 2015 at 10:42 AM, Daniel Borkmann <daniel@xxxxxxxxxxxxx> wrote:
> Cleanup commit 23ebdedc67e ("compiler-intel.h: Remove duplicate
> definition") removed the double definition of __memory_barrier()
> intrinsics.
> However, in doing so, it also removed the preceding #undef barrier,
> meaning, the actual barrier() macro from compiler-gcc.h with inline
> asm is still in place when __GNUC__ is provided.

When you use the Intel compilers, the barrier() definition will come
from compiler.h and not compiler-gcc.h. That is what the commit
message says in 73679e508201(your commit message has the wrong hash).
I don't understand what problem you are seeing with this, can you
please explain?

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