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    Subject[PATCH v5 0/9] Cleanup & new features for compiler*.h and bug.h
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    include/linux/bug.h | 47 ++++++++++++++++++++++------------------
    include/linux/compiler-gcc.h | 3 ++
    include/linux/compiler-gcc3.h | 8 +++---
    include/linux/compiler-gcc4.h | 28 ++++++++++++------------
    include/linux/compiler.h | 32 +++++++++++++++++++++++++--
    5 files changed, 76 insertions(+), 42 deletions(-)

    Changes in v5:
    o Move BUILD_BUG* guts to a new compiletime_assert() macro in compiler.h.
    o Fix a double-evaluation problem.
    o Fix another bad macro definition when __CHECKER__ defined.

    Changes in v4:
    o Squash a minor commit (per Borislav Petkov)
    o Change some comment text (per Borislav Petkov)
    o Add some acks

    This patch set is a dependency of the generic red-black tree patch set, which
    I have now split up into three smaller sets and is based off of linux-next.

    The major aim of this patch set is to cleanup compiler-gcc*.h and improve
    the manageability of of compiler features at various versions (when they
    are broken, etc.), add some needed features to bug.h and clean that up as
    well.

    compiler-gcc*.h
    o Introduce GCC_VERSION - (e.g., gcc 4.7.1 becomes 40701).
    o Reorder all features based upon the version introduced (readability).
    o Change all version checks to use GCC_VERSION.
    o Remove redundant __linktime_error macro.
    o Introduce compiletime_assert() macro.

    bug.h
    o Improve BUILD_BUG_ON(expr) - now generates compile-time error post-gcc-4.4
    o Remove duplicate error messages in some cases.
    o Fix double-evaluation problem in BUILD_BUG_ON.
    o Fix bad macro definitions when using __CHECKER__.
    o Introduce BUILD_BUG_ON_MSG and clean up the implementations of the
    BUILD_BUG* macros.


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