linux-kernel - Re: [PATCH v2 21/21] x86/pvlocks: Move paravirt spinlock functions into own header

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Message-ID: <078d5556-c5a9-40f5-906d-f96253a22739@suse.com>
Date: Thu, 18 Sep 2025 07:56:30 +0200
From: Juergen Gross <jgross@...e.com>
To: kernel test robot <lkp@...el.com>, linux-kernel@...r.kernel.org,
 x86@...nel.org, linux-hyperv@...r.kernel.org,
 virtualization@...ts.linux.dev, kvm@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
 "K. Y. Srinivasan" <kys@...rosoft.com>,
 Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>,
 Dexuan Cui <decui@...rosoft.com>, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
 Dave Hansen <dave.hansen@...ux.intel.com>, "H. Peter Anvin" <hpa@...or.com>,
 Ajay Kaher <ajay.kaher@...adcom.com>,
 Alexey Makhalov <alexey.makhalov@...adcom.com>,
 Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>, Paolo Bonzini
 <pbonzini@...hat.com>, Vitaly Kuznetsov <vkuznets@...hat.com>,
 Boris Ostrovsky <boris.ostrovsky@...cle.com>,
 Josh Poimboeuf <jpoimboe@...nel.org>, xen-devel@...ts.xenproject.org
Subject: Re: [PATCH v2 21/21] x86/pvlocks: Move paravirt spinlock functions
 into own header

On 18.09.25 04:45, kernel test robot wrote:
> Hi Juergen,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on tip/sched/core]
> [also build test WARNING on kvm/queue kvm/next linus/master v6.17-rc6 next-20250917]
> [cannot apply to tip/x86/core kvm/linux-next]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Juergen-Gross/x86-paravirt-Remove-not-needed-includes-of-paravirt-h/20250917-230321
> base:   tip/sched/core
> patch link:    https://lore.kernel.org/r/20250917145220.31064-22-jgross%40suse.com
> patch subject: [PATCH v2 21/21] x86/pvlocks: Move paravirt spinlock functions into own header
> config: x86_64-randconfig-003-20250918 (https://download.01.org/0day-ci/archive/20250918/202509181008.MoLd2u4e-lkp@intel.com/config)
> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250918/202509181008.MoLd2u4e-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202509181008.MoLd2u4e-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
>>> arch/x86/kernel/paravirt-spinlocks.c:13:13: warning: no previous prototype for function 'native_pv_lock_init' [-Wmissing-prototypes]
>        13 | void __init native_pv_lock_init(void)
>           |             ^
>     arch/x86/kernel/paravirt-spinlocks.c:13:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
>        13 | void __init native_pv_lock_init(void)
>           | ^
>           | static
>     1 warning generated.

Will be fixed in V3.

Juergen

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