linux-kernel - Re: [PATCH v2 4/7] virt: geniezone: Add vcpu support

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Message-ID: <202304291412.EiKEO9uy-lkp@intel.com>
Date:   Sat, 29 Apr 2023 14:34:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yi-De Wu <yi-de.wu@...iatek.com>,
        Yingshiuan Pan <yingshiuan.pan@...iatek.com>,
        Ze-Yu Wang <ze-yu.wang@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     oe-kbuild-all@...ts.linux.dev, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-arch@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        David Bradil <dbrazdil@...gle.com>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        Jade Shih <jades.shih@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        Ivan Tseng <ivan.tseng@...iatek.com>,
        My Chuang <my.chuang@...iatek.com>,
        Shawn Hsiao <shawn.hsiao@...iatek.com>,
        PeiLun Suei <peilun.suei@...iatek.com>,
        Liju Chen <liju-clr.chen@...iatek.com>
Subject: Re: [PATCH v2 4/7] virt: geniezone: Add vcpu support

Hi Yi-De,

kernel test robot noticed the following build warnings:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on robh/for-next arnd-asm-generic/master linus/master v6.3 next-20230428]
[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/Yi-De-Wu/docs-geniezone-Introduce-GenieZone-hypervisor/20230428-183738
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20230428103622.18291-5-yi-de.wu%40mediatek.com
patch subject: [PATCH v2 4/7] virt: geniezone: Add vcpu support
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230429/202304291412.EiKEO9uy-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/d4ced06ba2f149b099e9bf745a0e451c43e9d823
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Yi-De-Wu/docs-geniezone-Introduce-GenieZone-hypervisor/20230428-183738
        git checkout d4ced06ba2f149b099e9bf745a0e451c43e9d823
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304291412.EiKEO9uy-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/arm64/geniezone/../../../drivers/virt/geniezone/gzvm_vcpu.c:145:6: warning: no previous prototype for 'gzvm_destroy_vcpu' [-Wmissing-prototypes]
     145 | void gzvm_destroy_vcpu(struct gzvm_vcpu *vcpu)
         |      ^~~~~~~~~~~~~~~~~


vim +/gzvm_destroy_vcpu +145 arch/arm64/geniezone/../../../drivers/virt/geniezone/gzvm_vcpu.c

   143	
   144	/* caller must hold the vm lock */
 > 145	void gzvm_destroy_vcpu(struct gzvm_vcpu *vcpu)
   146	{
   147		if (!vcpu)
   148			return;
   149	
   150		gzvm_arch_destroy_vcpu(vcpu->gzvm->vm_id, vcpu->vcpuid);
   151		/* clean guest's data */
   152		memset(vcpu->run, 0, GZVM_VCPU_RUN_MAP_SIZE);
   153		free_pages_exact(vcpu->run, GZVM_VCPU_RUN_MAP_SIZE);
   154		kfree(vcpu);
   155	}
   156	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests