linux-kernel - [linux-stable-rc:linux-5.15.y 5378/5978] arch/powerpc/kvm/book3s_hv_rm_xics.c:887: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

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Date:   Mon, 25 Apr 2022 23:53:05 +0800
From:   kernel test robot <lkp@...el.com>
To:     Anders Roxell <anders.roxell@...aro.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Segher Boessenkool <segher@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linux-doc@...r.kernel.org
Subject: [linux-stable-rc:linux-5.15.y 5378/5978]
 arch/powerpc/kvm/book3s_hv_rm_xics.c:887: warning: This comment starts with
 '/**', but isn't a kernel-doc comment. Refer
 Documentation/doc-guide/kernel-doc.rst

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
head:   81d8d30c35edf29c5c70186ccb14dac4a5ca38a8
commit: 2d67222b2380949f2e00b35104a2cc0a62b4631b [5378/5978] powerpc: Fix build errors with newer binutils
config: powerpc64-randconfig-r023-20220425 (https://download.01.org/0day-ci/archive/20220425/202204252334.Cd2IsiII-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 11.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=2d67222b2380949f2e00b35104a2cc0a62b4631b
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-5.15.y
        git checkout 2d67222b2380949f2e00b35104a2cc0a62b4631b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kvm/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/powerpc/kvm/book3s_hv_rm_xics.c:887: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Host Operations poked by RM KVM


vim +887 arch/powerpc/kvm/book3s_hv_rm_xics.c

0c2a66062470cd Suresh Warrier 2015-12-17  885  
0c2a66062470cd Suresh Warrier 2015-12-17  886  /**
0c2a66062470cd Suresh Warrier 2015-12-17 @887   * Host Operations poked by RM KVM
0c2a66062470cd Suresh Warrier 2015-12-17  888   */
0c2a66062470cd Suresh Warrier 2015-12-17  889  static void rm_host_ipi_action(int action, void *data)
0c2a66062470cd Suresh Warrier 2015-12-17  890  {
0c2a66062470cd Suresh Warrier 2015-12-17  891  	switch (action) {
0c2a66062470cd Suresh Warrier 2015-12-17  892  	case XICS_RM_KICK_VCPU:
0c2a66062470cd Suresh Warrier 2015-12-17  893  		kvmppc_host_rm_ops_hv->vcpu_kick(data);
0c2a66062470cd Suresh Warrier 2015-12-17  894  		break;
0c2a66062470cd Suresh Warrier 2015-12-17  895  	default:
0c2a66062470cd Suresh Warrier 2015-12-17  896  		WARN(1, "Unexpected rm_action=%d data=%p\n", action, data);
0c2a66062470cd Suresh Warrier 2015-12-17  897  		break;
0c2a66062470cd Suresh Warrier 2015-12-17  898  	}
0c2a66062470cd Suresh Warrier 2015-12-17  899  

:::::: The code at line 887 was first introduced by commit
:::::: 0c2a66062470cd1f6d11ae6db31059f59d3f725f KVM: PPC: Book3S HV: Host side kick VCPU when poked by real-mode KVM

:::::: TO: Suresh Warrier <warrier@...ux.vnet.ibm.com>
:::::: CC: Paul Mackerras <paulus@...ba.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp