[mkp-scsi:for-next 223/231] drivers/scsi/arcmsr/arcmsr_hba.c:658:36: warning: right shift count >= width of type

[mkp-scsi:for-next 223/231] drivers/scsi/arcmsr/arcmsr_hba.c:658:36: warning: right shift count >= width of type

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
head:   eb382d70a334947948787bd8f1a7f8f023cf6d1c
commit: aae7fa9246c9ae81294c862704d6602214eb267a [223/231] scsi: arcmsr: Add support for ARC-1886 series RAID controllers
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?id=aae7fa9246c9ae81294c862704d6602214eb267a
        git remote add mkp-scsi https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git
        git fetch --no-tags mkp-scsi for-next
        git checkout aae7fa9246c9ae81294c862704d6602214eb267a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa 

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

All warnings (new ones prefixed by >>):

   drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_hbaF_assign_regAddr':
>> drivers/scsi/arcmsr/arcmsr_hba.c:658:36: warning: right shift count >= width of type [-Wshift-count-overflow]
     658 |  writel((uint32_t)(host_buffer_dma >> 32), &pmuF->inbound_msgaddr1);
         |                                    ^~
   drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_iop_confirm':
   drivers/scsi/arcmsr/arcmsr_hba.c:4086:53: warning: right shift count >= width of type [-Wshift-count-overflow]
    4086 |   cdb_phyaddr_hi32 = (uint32_t)(dma_coherent_handle >> 32);
         |                                                     ^~

vim +658 drivers/scsi/arcmsr/arcmsr_hba.c

   640	
   641	static void arcmsr_hbaF_assign_regAddr(struct AdapterControlBlock *acb)
   642	{
   643		dma_addr_t host_buffer_dma;
   644		struct MessageUnit_F __iomem *pmuF;
   645	
   646		memset(acb->dma_coherent2, 0xff, acb->completeQ_size);
   647		acb->message_wbuffer = (uint32_t *)((((unsigned long)acb->dma_coherent2 +
   648			acb->completeQ_size + 3) >> 2) << 2);
   649		acb->message_rbuffer = ((void *)acb->message_wbuffer) + 0x100;
   650		acb->msgcode_rwbuffer = ((void *)acb->message_wbuffer) + 0x200;
   651		memset((void *)acb->message_wbuffer, 0, MESG_RW_BUFFER_SIZE);
   652		host_buffer_dma = ((acb->dma_coherent_handle2 + acb->completeQ_size +
   653			3) >> 2) << 2;
   654		pmuF = acb->pmuF;
   655		/* host buffer low address, bit0:1 all buffer active */
   656		writel((uint32_t)(host_buffer_dma | 1), &pmuF->inbound_msgaddr0);
   657		/* host buffer high address */
 > 658		writel((uint32_t)(host_buffer_dma >> 32), &pmuF->inbound_msgaddr1);
   659		/* set host buffer physical address */
   660		writel(ARCMSR_HBFMU_DOORBELL_SYNC1, &pmuF->iobound_doorbell);
   661	}
   662	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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