On 2024/11/7 0:50, kernel test robot wrote: > Hi Longfang, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on awilliam-vfio/next] > [also build test ERROR on awilliam-vfio/for-linus linus/master v6.12-rc6 next-20241106] > [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/Longfang-Liu/hisi_acc_vfio_pci-extract-public-functions-for-container_of/20241106-182913 > base: https://github.com/awilliam/linux-vfio.git next > patch link: https://lore.kernel.org/r/20241106100343.21593-4-liulongfang%40huawei.com > patch subject: [PATCH v13 3/4] hisi_acc_vfio_pci: register debugfs for hisilicon migration driver > config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20241107/202411070027.p1xVCxxs-lkp@xxxxxxxxx/config) > compiler: loongarch64-linux-gcc (GCC) 14.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241107/202411070027.p1xVCxxs-lkp@xxxxxxxxx/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@xxxxxxxxx> > | Closes: https://lore.kernel.org/oe-kbuild-all/202411070027.p1xVCxxs-lkp@xxxxxxxxx/ > > All errors (new ones prefixed by >>): > > drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c: In function 'hisi_acc_vf_dev_read': >>> drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:1397:9: error: too many arguments to function 'seq_puts' > 1397 | seq_puts(seq, > | ^~~~~~~~ > In file included from include/linux/debugfs.h:16, > from include/linux/hisi_acc_qm.h:7, > from drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:9: > include/linux/seq_file.h:122:29: note: declared here > 122 | static __always_inline void seq_puts(struct seq_file *m, const char *s) > | ^~~~~~~~ > drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c: In function 'hisi_acc_vf_migf_read': > drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c:1429:9: error: too many arguments to function 'seq_puts' > 1429 | seq_puts(seq, "migrate data length: %lu\n", debug_migf->total_length); > | ^~~~~~~~ > include/linux/seq_file.h:122:29: note: declared here > 122 | static __always_inline void seq_puts(struct seq_file *m, const char *s) > | ^~~~~~~~ > > > vim +/seq_puts +1397 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c > > 1364 > 1365 static int hisi_acc_vf_dev_read(struct seq_file *seq, void *data) > 1366 { > 1367 struct device *vf_dev = seq->private; > 1368 struct vfio_pci_core_device *core_device = dev_get_drvdata(vf_dev); > 1369 struct vfio_device *vdev = &core_device->vdev; > 1370 struct hisi_acc_vf_core_device *hisi_acc_vdev = hisi_acc_get_vf_dev(vdev); > 1371 size_t vf_data_sz = offsetofend(struct acc_vf_data, padding); > 1372 struct acc_vf_data *vf_data; > 1373 int ret; > 1374 > 1375 mutex_lock(&hisi_acc_vdev->open_mutex); > 1376 ret = hisi_acc_vf_debug_check(seq, vdev); > 1377 if (ret) { > 1378 mutex_unlock(&hisi_acc_vdev->open_mutex); > 1379 return ret; > 1380 } > 1381 > 1382 mutex_lock(&hisi_acc_vdev->state_mutex); > 1383 vf_data = kzalloc(sizeof(*vf_data), GFP_KERNEL); > 1384 if (!vf_data) { > 1385 ret = -ENOMEM; > 1386 goto mutex_release; > 1387 } > 1388 > 1389 vf_data->vf_qm_state = hisi_acc_vdev->vf_qm_state; > 1390 ret = vf_qm_read_data(&hisi_acc_vdev->vf_qm, vf_data); > 1391 if (ret) > 1392 goto migf_err; > 1393 > 1394 seq_hex_dump(seq, "Dev Data:", DUMP_PREFIX_OFFSET, 16, 1, > 1395 (const void *)vf_data, vf_data_sz, false); > 1396 >> 1397 seq_puts(seq, > 1398 "guest driver load: %u\n" > 1399 "data size: %lu\n", > 1400 hisi_acc_vdev->vf_qm_state, > 1401 sizeof(struct acc_vf_data)); > 1402 > 1403 migf_err: > 1404 kfree(vf_data); > 1405 mutex_release: > 1406 mutex_unlock(&hisi_acc_vdev->state_mutex); > 1407 mutex_unlock(&hisi_acc_vdev->open_mutex); > 1408 > 1409 return ret; > 1410 } > 1411 > OK, I will fix it using seq_printf() in the next version Thanks, Longfang.