Re: [PATCH 2/4] KVM: VFIO: use mutex guard in kvm_vfio_file_set_spapr_tce()

[Sean Christopherson <seanjc@google.com>]

On Fri, Apr 17, 2026, Carlos López wrote:
> On 4/7/26 5:48 AM, kernel test robot wrote:
> > Hi Carlos,
> > 
> > kernel test robot noticed the following build warnings:
> > 
> > [auto build test WARNING on d2ea4ff1ce50787a98a3900b3fb1636f3620b7cf]
> > 
> > url:    https://github.com/intel-lab-lkp/linux/commits/Carlos-L-pez/KVM-VFIO-clean-up-control-flow-in-kvm_vfio_file_add/20260314-053050
> > base:   d2ea4ff1ce50787a98a3900b3fb1636f3620b7cf
> > patch link:    https://lore.kernel.org/r/20260313122040.1413091-5-clopez%40suse.de
> > patch subject: [PATCH 2/4] KVM: VFIO: use mutex guard in kvm_vfio_file_set_spapr_tce()
> > config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20260403/202604031640.vckbuS2S-lkp@intel.com/config)
> > compiler: powerpc64-linux-gcc (GCC) 15.2.0
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260403/202604031640.vckbuS2S-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@intel.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202604031640.vckbuS2S-lkp@intel.com/
> > 
> > All warnings (new ones prefixed by >>):
> > 
> >    arch/powerpc/kvm/../../../virt/kvm/vfio.c: In function 'kvm_vfio_file_set_spapr_tce':
> >>> arch/powerpc/kvm/../../../virt/kvm/vfio.c:219:13: warning: unused variable 'ret' [-Wunused-variable]
> >      219 |         int ret;
> >          |             ^~~
> > 
> 
> Sean, should I send a v2 for this or will you fix it up when applying?

I'll fixup when applying.