Hi Uros, Thank you for the patch! Yet something to improve: [auto build test ERROR on kvm/master] [also build test ERROR on mst-vhost/linux-next linux/master linus/master v5.18-rc7] [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] url: https://github.com/intel-lab-lkp/linux/commits/Uros-Bizjak/KVM-VMX-Use-try_cmpxchg64-in-pi_try_set_control/20220520-223925 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git master config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220521/202205211837.X2KKIXbP-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/84128ccce45cc3ece9b9f8d4df8afa81651547c9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Uros-Bizjak/KVM-VMX-Use-try_cmpxchg64-in-pi_try_set_control/20220520-223925 git checkout 84128ccce45cc3ece9b9f8d4df8afa81651547c9 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/x86/kvm/vmx/posted_intr.c: In function 'pi_try_set_control': >> arch/x86/kvm/vmx/posted_intr.c:45:14: error: implicit declaration of function 'try_cmpxchg64'; did you mean 'try_cmpxchg'? [-Werror=implicit-function-declaration] 45 | if (!try_cmpxchg64(&pi_desc->control, &old, new)) | ^~~~~~~~~~~~~ | try_cmpxchg cc1: some warnings being treated as errors vim +45 arch/x86/kvm/vmx/posted_intr.c 36 37 static int pi_try_set_control(struct pi_desc *pi_desc, u64 old, u64 new) 38 { 39 /* 40 * PID.ON can be set at any time by a different vCPU or by hardware, 41 * e.g. a device. PID.control must be written atomically, and the 42 * update must be retried with a fresh snapshot an ON change causes 43 * the cmpxchg to fail. 44 */ > 45 if (!try_cmpxchg64(&pi_desc->control, &old, new)) 46 return -EBUSY; 47 48 return 0; 49 } 50 -- 0-DAY CI Kernel Test Service https://01.org/lkp
