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Subject[asahilinux:bluetooth-wip 9/9] drivers/bluetooth/hci_bcm4377.c:886:68: sparse: sparse: incorrect type in assignment (different base types)
tree:   https://github.com/AsahiLinux/linux bluetooth-wip
head: 0148a507e34696326e2b63e626cf0dd46c047cfd
commit: 0148a507e34696326e2b63e626cf0dd46c047cfd [9/9] Bluetooth: hci_bcm4377: Add new driver for BCM4377 PCI boards
config: parisc-randconfig-s041-20220715 (https://download.01.org/0day-ci/archive/20220717/202207170823.npuKuaKC-lkp@intel.com/config)
compiler: hppa64-linux-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/AsahiLinux/linux/commit/0148a507e34696326e2b63e626cf0dd46c047cfd
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux bluetooth-wip
git checkout 0148a507e34696326e2b63e626cf0dd46c047cfd
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc64 SHELL=/bin/bash drivers/bluetooth/ drivers/media/i2c/ drivers/pci/ kernel/trace/ sound/soc/codecs/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/bluetooth/hci_bcm4377.c:886:68: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 @@ got int @@
drivers/bluetooth/hci_bcm4377.c:886:68: sparse: expected restricted __le16
drivers/bluetooth/hci_bcm4377.c:886:68: sparse: got int
>> drivers/bluetooth/hci_bcm4377.c:1352:36: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] enabled_caps @@ got restricted __le16 [usertype] @@
drivers/bluetooth/hci_bcm4377.c:1352:36: sparse: expected restricted __le32 [usertype] enabled_caps
drivers/bluetooth/hci_bcm4377.c:1352:36: sparse: got restricted __le16 [usertype]

vim +886 drivers/bluetooth/hci_bcm4377.c

830
831 static int bcm4377_create_transfer_ring(struct bcm4377_data *bcm4377,
832 struct bcm4377_transfer_ring *ring)
833 {
834 struct bcm4377_create_transfer_ring_msg msg;
835 u16 flags = 0;
836 int ret, i;
837 unsigned long spinlock_flags;
838
839 if (ring->virtual)
840 flags |= BCM4377_XFER_RING_FLAG_VIRTUAL;
841 if (ring->sync)
842 flags |= BCM4377_XFER_RING_FLAG_SYNC;
843
844 spin_lock_irqsave(&ring->lock, spinlock_flags);
845 memset(&msg, 0, sizeof(msg));
846 msg.msg_type = BCM4377_CONTROL_MSG_CREATE_XFER_RING;
847 msg.ring_id = cpu_to_le16(ring->ring_id);
848 msg.ring_id_again = cpu_to_le16(ring->ring_id);
849 msg.ring_iova = cpu_to_le64(ring->ring_dma);
850 msg.n_elements = cpu_to_le16(ring->n_entries);
851 msg.completion_ring_id = cpu_to_le16(ring->completion_ring);
852 msg.doorbell = cpu_to_le16(ring->doorbell);
853 msg.flags = cpu_to_le16(flags);
854 msg.footer_size = ring->payload_size / 4;
855
856 bcm4377->ring_state->xfer_ring_head[ring->ring_id] = 0;
857 bcm4377->ring_state->xfer_ring_tail[ring->ring_id] = 0;
858 ring->generation++;
859 spin_unlock_irqrestore(&ring->lock, spinlock_flags);
860
861 ret = bcm4377_enqueue(bcm4377, &bcm4377->control_h2d_ring, &msg,
862 sizeof(msg), true);
863
864 spin_lock_irqsave(&ring->lock, spinlock_flags);
865
866 if (ring->d2h_buffers_only) {
867 for (i = 0; i < ring->n_entries; ++i) {
868 struct bcm4377_xfer_ring_entry *entry =
869 ring->ring + i * sizeof(*entry);
870 u16 raw_msgid = FIELD_PREP(BCM4377_MSGID_GENERATION,
871 ring->generation);
872 raw_msgid |= FIELD_PREP(BCM4377_MSGID_ID, i);
873
874 memset(entry, 0, sizeof(*entry));
875 entry->id = cpu_to_le16(raw_msgid);
876 entry->len = cpu_to_le16(ring->mapped_payload_size);
877 entry->flags = BCM4377_XFER_RING_FLAG_PAYLOAD_MAPPED;
878 entry->payload =
879 cpu_to_le64(ring->payloads_dma +
880 i * ring->mapped_payload_size);
881 }
882 }
883
884 /* this primes the device->host side */
885 if (ring->virtual || ring->d2h_buffers_only) {
> 886 bcm4377->ring_state->xfer_ring_head[ring->ring_id] = 0xf;
887 bcm4377_ring_doorbell(bcm4377, ring->doorbell, 0xf);
888 }
889
890 ring->enabled = true;
891 spin_unlock_irqrestore(&ring->lock, spinlock_flags);
892
893 return ret;
894 }
895

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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