netdev - [mst-vhost:vhost 41/44] drivers/vdpa/pds/vdpa_dev.c:590:19: error: incompatible function pointer types initializing 's64 (*)(struct vdpa_device *, u16)' (aka 'long long (*)(struct vdpa_device *, unsigned short)') with an expression of type 'u32 (struct vdpa

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Message-ID: <202509202256.zVt4MifB-lkp@intel.com>
Date: Sat, 20 Sep 2025 22:41:40 +0800
From: kernel test robot <lkp@...el.com>
To: Eugenio Pérez <eperezma@...hat.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	netdev@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>
Subject: [mst-vhost:vhost 41/44] drivers/vdpa/pds/vdpa_dev.c:590:19: error:
 incompatible function pointer types initializing 's64 (*)(struct vdpa_device
 *, u16)' (aka 'long long (*)(struct vdpa_device *, unsigned short)') with an
 expression of type 'u32 (struct vdpa_device *, u16)' (aka ...

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   877102ca14b3ee9b5343d71f6420f036baf8a9fc
commit: 2951c77700c3944ecd991ede7ee77e31f47f24ab [41/44] vduse: add vq group support
config: loongarch-randconfig-001-20250920 (https://download.01.org/0day-ci/archive/20250920/202509202256.zVt4MifB-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 7c861bcedf61607b6c087380ac711eb7ff918ca6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250920/202509202256.zVt4MifB-lkp@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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509202256.zVt4MifB-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/vdpa/pds/vdpa_dev.c:590:19: error: incompatible function pointer types initializing 's64 (*)(struct vdpa_device *, u16)' (aka 'long long (*)(struct vdpa_device *, unsigned short)') with an expression of type 'u32 (struct vdpa_device *, u16)' (aka 'unsigned int (struct vdpa_device *, unsigned short)') [-Wincompatible-function-pointer-types]
     590 |         .get_vq_group           = pds_vdpa_get_vq_group,
         |                                   ^~~~~~~~~~~~~~~~~~~~~
   1 error generated.


vim +590 drivers/vdpa/pds/vdpa_dev.c

151cc834f3ddafe Shannon Nelson 2023-05-19  577  
151cc834f3ddafe Shannon Nelson 2023-05-19  578  static const struct vdpa_config_ops pds_vdpa_ops = {
151cc834f3ddafe Shannon Nelson 2023-05-19  579  	.set_vq_address		= pds_vdpa_set_vq_address,
151cc834f3ddafe Shannon Nelson 2023-05-19  580  	.set_vq_num		= pds_vdpa_set_vq_num,
151cc834f3ddafe Shannon Nelson 2023-05-19  581  	.kick_vq		= pds_vdpa_kick_vq,
151cc834f3ddafe Shannon Nelson 2023-05-19  582  	.set_vq_cb		= pds_vdpa_set_vq_cb,
151cc834f3ddafe Shannon Nelson 2023-05-19  583  	.set_vq_ready		= pds_vdpa_set_vq_ready,
151cc834f3ddafe Shannon Nelson 2023-05-19  584  	.get_vq_ready		= pds_vdpa_get_vq_ready,
151cc834f3ddafe Shannon Nelson 2023-05-19  585  	.set_vq_state		= pds_vdpa_set_vq_state,
151cc834f3ddafe Shannon Nelson 2023-05-19  586  	.get_vq_state		= pds_vdpa_get_vq_state,
151cc834f3ddafe Shannon Nelson 2023-05-19  587  	.get_vq_notification	= pds_vdpa_get_vq_notification,
151cc834f3ddafe Shannon Nelson 2023-05-19  588  	.get_vq_irq		= pds_vdpa_get_vq_irq,
151cc834f3ddafe Shannon Nelson 2023-05-19  589  	.get_vq_align		= pds_vdpa_get_vq_align,
151cc834f3ddafe Shannon Nelson 2023-05-19 @590  	.get_vq_group		= pds_vdpa_get_vq_group,
151cc834f3ddafe Shannon Nelson 2023-05-19  591  
151cc834f3ddafe Shannon Nelson 2023-05-19  592  	.get_device_features	= pds_vdpa_get_device_features,
151cc834f3ddafe Shannon Nelson 2023-05-19  593  	.set_driver_features	= pds_vdpa_set_driver_features,
151cc834f3ddafe Shannon Nelson 2023-05-19  594  	.get_driver_features	= pds_vdpa_get_driver_features,
151cc834f3ddafe Shannon Nelson 2023-05-19  595  	.set_config_cb		= pds_vdpa_set_config_cb,
151cc834f3ddafe Shannon Nelson 2023-05-19  596  	.get_vq_num_max		= pds_vdpa_get_vq_num_max,
151cc834f3ddafe Shannon Nelson 2023-05-19  597  	.get_device_id		= pds_vdpa_get_device_id,
151cc834f3ddafe Shannon Nelson 2023-05-19  598  	.get_vendor_id		= pds_vdpa_get_vendor_id,
151cc834f3ddafe Shannon Nelson 2023-05-19  599  	.get_status		= pds_vdpa_get_status,
151cc834f3ddafe Shannon Nelson 2023-05-19  600  	.set_status		= pds_vdpa_set_status,
151cc834f3ddafe Shannon Nelson 2023-05-19  601  	.reset			= pds_vdpa_reset,
151cc834f3ddafe Shannon Nelson 2023-05-19  602  	.get_config_size	= pds_vdpa_get_config_size,
151cc834f3ddafe Shannon Nelson 2023-05-19  603  	.get_config		= pds_vdpa_get_config,
151cc834f3ddafe Shannon Nelson 2023-05-19  604  	.set_config		= pds_vdpa_set_config,
151cc834f3ddafe Shannon Nelson 2023-05-19  605  };
25d1270b6e9ea89 Shannon Nelson 2023-05-19  606  static struct virtio_device_id pds_vdpa_id_table[] = {
25d1270b6e9ea89 Shannon Nelson 2023-05-19  607  	{VIRTIO_ID_NET, VIRTIO_DEV_ANY_ID},
25d1270b6e9ea89 Shannon Nelson 2023-05-19  608  	{0},
25d1270b6e9ea89 Shannon Nelson 2023-05-19  609  };
25d1270b6e9ea89 Shannon Nelson 2023-05-19  610  

:::::: The code at line 590 was first introduced by commit
:::::: 151cc834f3ddafec869269fe48036460d920d08a pds_vdpa: add support for vdpa and vdpamgmt interfaces

:::::: TO: Shannon Nelson <shannon.nelson@....com>
:::::: CC: Michael S. Tsirkin <mst@...hat.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki