9:31 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: ff90dfd2579b2c7bc1f0baa0cb99c918c6c1ec64
commit: 279dcf693ac76c9d16b91ffc41280babaff26bb2 [9088/11791] virt: acrn: Introduce an
interface for Service VM to control vCPU
config: x86_64-randconfig-r031-20210218 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
git remote add linux-next
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 279dcf693ac76c9d16b91ffc41280babaff26bb2
# save the attached .config to linux build tree
make W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
drivers/virt/acrn/hsm.c: In function 'remove_cpu_store':
> drivers/virt/acrn/hsm.c:389:3: error: implicit declaration of
function 'remove_cpu' [-Werror=implicit-function-declaration]
389 |
remove_cpu(cpu);
| ^~~~~~~~~~
> drivers/virt/acrn/hsm.c:402:2: error: implicit declaration of
function 'add_cpu' [-Werror=implicit-function-declaration]
402 |
add_cpu(cpu);
| ^~~~~~~
cc1: some warnings being treated as errors
vim +/remove_cpu +389 drivers/virt/acrn/hsm.c
374
375 static ssize_t remove_cpu_store(struct device *dev,
376 struct device_attribute *attr,
377 const char *buf, size_t count)
378 {
379 u64 cpu, lapicid;
380 int ret;
381
382 if (kstrtoull(buf, 0, &cpu) < 0)
383 return -EINVAL;
384
385 if (cpu >= num_possible_cpus() || cpu == 0 || !cpu_is_hotpluggable(cpu))
386 return -EINVAL;
387
388 if (cpu_online(cpu))
389 remove_cpu(cpu);
390
391 lapicid = cpu_data(cpu).apicid;
392 dev_dbg(dev, "Try to remove cpu %lld with lapicid %lld\n", cpu,
lapicid);
393 ret = hcall_sos_remove_cpu(lapicid);
394 if (ret < 0) {
395 dev_err(dev, "Failed to remove cpu %lld!\n", cpu);
396 goto fail_remove;
397 }
398
399 return count;
400
401 fail_remove:
402 add_cpu(cpu);
403 return ret;
404 }
405 static DEVICE_ATTR_WO(remove_cpu);
406
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org