Hi Haren, kernel test robot noticed the following build warnings:
[auto build test WARNING on powerpc/next] [also build test WARNING on powerpc/fixes v6.16] [cannot apply to linus/master next-20250801] [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/Haren-Myneni/powerpc-pseries-Define-papr-hvpipe-ioctl/20250802-104715 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next patch link: https://lore.kernel.org/r/20250802024121.955274-8-haren%40linux.ibm.com patch subject: [PATCH 7/9] powerpc/pseries: Enable HVPIPE event message interrupt config: powerpc64-randconfig-001-20250803 (https://download.01.org/0day-ci/archive/20250803/202508030428.qmzsb9kn-...@intel.com/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250803/202508030428.qmzsb9kn-...@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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508030428.qmzsb9kn-...@intel.com/ All warnings (new ones prefixed by >>): >> arch/powerpc/platforms/pseries/papr-hvpipe.c:698:6: warning: variable 'ret' >> is used uninitialized whenever 'if' condition is false >> [-Wsometimes-uninitialized] 698 | if (!enable_hvpipe_IRQ()) { | ^~~~~~~~~~~~~~~~~~~~ arch/powerpc/platforms/pseries/papr-hvpipe.c:710:9: note: uninitialized use occurs here 710 | return ret; | ^~~ arch/powerpc/platforms/pseries/papr-hvpipe.c:698:2: note: remove the 'if' if its condition is always true 698 | if (!enable_hvpipe_IRQ()) { | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/platforms/pseries/papr-hvpipe.c:676:9: note: initialize the variable 'ret' to silence this warning 676 | int ret; | ^ | = 0 1 warning generated. vim +698 arch/powerpc/platforms/pseries/papr-hvpipe.c 673 674 static int __init papr_hvpipe_init(void) 675 { 676 int ret; 677 678 if (!of_find_property(rtas.dev, "ibm,hypervisor-pipe-capable", 679 NULL)) 680 return -ENODEV; 681 682 if (!rtas_function_implemented(RTAS_FN_IBM_SEND_HVPIPE_MSG) || 683 !rtas_function_implemented(RTAS_FN_IBM_RECEIVE_HVPIPE_MSG)) 684 return -ENODEV; 685 686 papr_hvpipe_work = kzalloc(sizeof(struct work_struct), GFP_ATOMIC); 687 if (!papr_hvpipe_work) 688 return -ENOMEM; 689 690 INIT_WORK(papr_hvpipe_work, papr_hvpipe_work_fn); 691 692 papr_hvpipe_wq = alloc_ordered_workqueue("papr hvpipe workqueue", 0); 693 if (!papr_hvpipe_wq) { 694 ret = -ENOMEM; 695 goto out; 696 } 697 > 698 if (!enable_hvpipe_IRQ()) { -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
