linux-kernel - [PATCH 0/3] selftests: Remove duplicate CPUID wrappers

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Date:   Fri,  4 Feb 2022 11:17:08 -0800
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     shuah@...nel.org, linux-kselftest@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Reinette Chatre <reinette.chatre@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Ram Pai <linuxram@...ibm.com>,
        Sandipan Das <sandipan@...ux.ibm.com>,
        Florian Weimer <fweimer@...hat.com>,
        "Desnes A. Nunes do Rosario" <desnesn@...ux.vnet.ibm.com>,
        Ingo Molnar <mingo@...nel.org>,
        Thiago Jung Bauermann <bauerman@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Suchanek <msuchanek@...e.de>, linux-mm@...ck.org,
        "Chang S . Bae" <chang.seok.bae@...el.com>,
        Borislav Petkov <bp@...e.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 0/3] selftests: Remove duplicate CPUID wrappers

A few tests that require running CPUID do so with a private
implementation of a wrapper for CPUID. This duplication of
the CPUID wrapper should be avoided but having one is also
unnecessary because of the existence of a macro that can
be used instead.

This series replaces private CPUID wrappers with calls
to the __cpuid_count() macro from cpuid.h as made available
by gcc and clang/llvm.

Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Ram Pai <linuxram@...ibm.com>
Cc: Sandipan Das <sandipan@...ux.ibm.com>
Cc: Florian Weimer <fweimer@...hat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@...ux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Thiago Jung Bauermann <bauerman@...ux.ibm.com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Michal Suchanek <msuchanek@...e.de>
Cc: linux-mm@...ck.org
Cc: Chang S. Bae <chang.seok.bae@...el.com>
Cc: Borislav Petkov <bp@...e.de>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: x86@...nel.org
Cc: Andy Lutomirski <luto@...nel.org>

Reinette Chatre (3):
  selftests/vm/pkeys: Use existing __cpuid_count() macro
  selftests/x86/amx: Use existing __cpuid_count() macro
  selftests/x86/corrupt_xstate_header: Use existing __cpuid_count()
    macro

 tools/testing/selftests/vm/pkey-x86.h         | 22 +++---------------
 tools/testing/selftests/x86/amx.c             | 23 +++++--------------
 .../selftests/x86/corrupt_xstate_header.c     | 17 ++------------
 3 files changed, 11 insertions(+), 51 deletions(-)

-- 
2.25.1