[bluetooth-next:master 28/29] drivers/bluetooth/btintel_pcie.c:134:58: warning: shift count >= width of type

[bluetooth-next:master 28/29] drivers/bluetooth/btintel_pcie.c:134:58: warning: shift count >= width of type

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
head:   978777bfa2d88998f2ffa2d3405ee20b7276890a
commit: 3104ae5ad1b732140847f1f29534a448b6804d8e [28/29] Bluetooth: btintel_pcie: Setup buffers for firmware traces
config: powerpc-randconfig-001-20250227 (https://download.01.org/0day-ci/archive/20250227/202502271502.37Q8TE9Q-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250227/202502271502.37Q8TE9Q-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502271502.37Q8TE9Q-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/bluetooth/btintel_pcie.c:134:58: warning: shift count >= width of type [-Wshift-count-overflow]
     134 |                 db_frag.bufs[i].buf_addr_msb = (u32)((buf->data_p_addr >> 32) & 0xffffffff);
         |                                                                        ^  ~~
   drivers/bluetooth/btintel_pcie.c:419:20: warning: unused function 'btintel_pcie_in_rom' [-Wunused-function]
     419 | static inline bool btintel_pcie_in_rom(struct btintel_pcie_data *data)
         |                    ^~~~~~~~~~~~~~~~~~~
   2 warnings generated.


vim +134 drivers/bluetooth/btintel_pcie.c

    90	
    91	/* This function initializes the memory for DBGC buffers and formats the
    92	 * DBGC fragment which consists header info and DBGC buffer's LSB, MSB and
    93	 * size as the payload
    94	 */
    95	static int btintel_pcie_setup_dbgc(struct btintel_pcie_data *data)
    96	{
    97		struct btintel_pcie_dbgc_ctxt db_frag;
    98		struct data_buf *buf;
    99		int i;
   100	
   101		data->dbgc.count = BTINTEL_PCIE_DBGC_BUFFER_COUNT;
   102		data->dbgc.bufs = devm_kcalloc(&data->pdev->dev, data->dbgc.count,
   103					       sizeof(*buf), GFP_KERNEL);
   104		if (!data->dbgc.bufs)
   105			return -ENOMEM;
   106	
   107		data->dbgc.buf_v_addr = dmam_alloc_coherent(&data->pdev->dev,
   108							    data->dbgc.count *
   109							    BTINTEL_PCIE_DBGC_BUFFER_SIZE,
   110							    &data->dbgc.buf_p_addr,
   111							    GFP_KERNEL | __GFP_NOWARN);
   112		if (!data->dbgc.buf_v_addr)
   113			return -ENOMEM;
   114	
   115		data->dbgc.frag_v_addr = dmam_alloc_coherent(&data->pdev->dev,
   116							     sizeof(struct btintel_pcie_dbgc_ctxt),
   117							     &data->dbgc.frag_p_addr,
   118							     GFP_KERNEL | __GFP_NOWARN);
   119		if (!data->dbgc.frag_v_addr)
   120			return -ENOMEM;
   121	
   122		data->dbgc.frag_size = sizeof(struct btintel_pcie_dbgc_ctxt);
   123	
   124		db_frag.magic_num = BTINTEL_PCIE_MAGIC_NUM;
   125		db_frag.ver = BTINTEL_PCIE_DBGC_FRAG_VERSION;
   126		db_frag.total_size = BTINTEL_PCIE_DBGC_FRAG_PAYLOAD_SIZE;
   127		db_frag.num_buf = BTINTEL_PCIE_DBGC_FRAG_BUFFER_COUNT;
   128	
   129		for (i = 0; i < data->dbgc.count; i++) {
   130			buf = &data->dbgc.bufs[i];
   131			buf->data_p_addr = data->dbgc.buf_p_addr + i * BTINTEL_PCIE_DBGC_BUFFER_SIZE;
   132			buf->data = data->dbgc.buf_v_addr + i * BTINTEL_PCIE_DBGC_BUFFER_SIZE;
   133			db_frag.bufs[i].buf_addr_lsb = (u32)(buf->data_p_addr & 0xffffffff);
 > 134			db_frag.bufs[i].buf_addr_msb = (u32)((buf->data_p_addr >> 32) & 0xffffffff);
   135			db_frag.bufs[i].buf_size = BTINTEL_PCIE_DBGC_BUFFER_SIZE;
   136		}
   137	
   138		memcpy(data->dbgc.frag_v_addr, &db_frag, sizeof(db_frag));
   139		return 0;
   140	}
   141	

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