linux-kernel - [GIT PULL] Compiler Attributes for v5.0-rc7

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Date:   Fri, 15 Feb 2019 20:10:59 +0100
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Laura Abbott <labbott@...hat.com>,
        Arnd Bergmann <arnd@...db.de>,
        Martin Sebor <msebor@....gnu.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Jessica Yu <jeyu@...nel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        James Morris <james.morris@...rosoft.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Borislav Petkov <bp@...e.de>, Matt Mullins <mmullins@...com>,
        Vincent Whitchurch <vincent.whitchurch@...s.com>,
        WANG Chao <chao.wang@...oud.cn>
Subject: [GIT PULL] Compiler Attributes for v5.0-rc7

Hi Linus,

Please pull these changes to clean up the new GCC 9 warnings coming from
-Wmissing-attributes. With this, we can avoid disabling them.

The patches have been for quite in -next in several forms/shapes during
the iterations we did.

Cheers,
Miguel

The following changes since commit 8834f5600cf3c8db365e18a3d5cac2c2780c81e5:

  Linux 5.0-rc5 (2019-02-03 13:48:04 -0800)

are available in the Git repository at:

  https://github.com/ojeda/linux.git tags/compiler-attributes-for-linus-v5.0-rc7

for you to fetch changes up to a6e60d84989fa0e91db7f236eda40453b0e44afa:

  include/linux/module.h: copy __init/__exit attrs to init/cleanup_module (2019-02-15 19:52:56 +0100)

----------------------------------------------------------------
Compiler Attributes: Clean the new GCC 9 -Wmissing-attributes warnings

The upcoming GCC 9 release extends the -Wmissing-attributes warnings
(enabled by -Wall) to C and aliases: it warns when particular function
attributes are missing in the aliases but not in their target, e.g.:

    void __cold f(void) {}
    void __alias("f") g(void);

diagnoses:

    warning: 'g' specifies less restrictive attribute than
    its target 'f': 'cold' [-Wmissing-attributes]

These patch series clean these new warnings. Most of them are caused
by the module_init/exit macros.

Link: https://lore.kernel.org/lkml/20190125104353.2791-1-labbott@redhat.com/

----------------------------------------------------------------
Miguel Ojeda (3):
      lib/crc32.c: mark crc32_le_base/__crc32c_le_base aliases as __pure
      Compiler Attributes: add support for __copy (gcc >= 9)
      include/linux/module.h: copy __init/__exit attrs to init/cleanup_module

 include/linux/compiler_attributes.h | 14 ++++++++++++++
 include/linux/module.h              |  4 ++--
 lib/crc32.c                         |  4 ++--
 3 files changed, 18 insertions(+), 4 deletions(-)