Hi Haren, kernel test robot noticed the following build warnings:
[auto build test WARNING on powerpc/next] [also build test WARNING on powerpc/fixes linus/master v6.17-rc5 next-20250908] [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/20250908-110839 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next patch link: https://lore.kernel.org/r/20250908030458.1139163-4-haren%40linux.ibm.com patch subject: [PATCH v6 3/9] powerpc/pseries: Add papr-hvpipe char driver for HVPIPE interfaces config: powerpc64-randconfig-r111-20250909 (https://download.01.org/0day-ci/archive/20250909/202509091256.nwelaisa-...@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 10.5.0 reproduce: (https://download.01.org/0day-ci/archive/20250909/202509091256.nwelaisa-...@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/202509091256.nwelaisa-...@intel.com/ sparse warnings: (new ones prefixed by >>) >> arch/powerpc/platforms/pseries/papr-hvpipe.c:121:24: sparse: sparse: >> incorrect type in return expression (different base types) @@ expected >> restricted __poll_t @@ got int @@ arch/powerpc/platforms/pseries/papr-hvpipe.c:121:24: sparse: expected restricted __poll_t arch/powerpc/platforms/pseries/papr-hvpipe.c:121:24: sparse: got int vim +121 arch/powerpc/platforms/pseries/papr-hvpipe.c 108 109 /* 110 * The user space waits for the payload to receive. 111 * The hypervisor sends HVPIPE event message to the partition 112 * when the payload is available. The event handler wakeup FD 113 * depends on the source ID in the message event. 114 */ 115 static __poll_t papr_hvpipe_handle_poll(struct file *filp, 116 struct poll_table_struct *wait) 117 { 118 struct hvpipe_source_info *src_info = filp->private_data; 119 120 if (!src_info) > 121 return -EIO; 122 123 return 0; 124 } 125 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
