linux-kernel - [asahilinux:bluetooth-wip 9/9] drivers/bluetooth/hci_bcm4377.c:886:68: sparse: sparse: incorrect type in assignment (different base types)

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Message-ID: <202207170823.npuKuaKC-lkp@intel.com>
Date:   Sun, 17 Jul 2022 08:11:59 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sven Peter <sven@...npeter.dev>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
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@...el.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	

-- 
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https://01.org/lkp