tree:   https://github.com/ammarfaizi2/linux-block tglx/devel/devmsi
head:   ba77f809fa66b636222f6677ec7cf8faa1562fe7
commit: 022573e1aaf0745ab002f898c5d4aa0f0ae5ec09 [46/86] genirq/msi: Make msi_get_virq() device domain aware
config: arm64-randconfig-r032-20221102
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/022573e1aaf0745ab002f898c5d4aa0f0ae5ec09
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block tglx/devel/devmsi
        git checkout 022573e1aaf0745ab002f898c5d4aa0f0ae5ec09
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash kernel/irq/

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

All warnings (new ones prefixed by >>):

>> kernel/irq/msi.c:384:56: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first [-Wparentheses]
           desc = xa_load(&dev->msi.data->__store, base + pcimsi ? 0 : index);
                                                   ~~~~~~~~~~~~~ ^
   kernel/irq/msi.c:384:56: note: place parentheses around the '+' expression to silence this warning
           desc = xa_load(&dev->msi.data->__store, base + pcimsi ? 0 : index);
                                                                 ^
                                                   (            )
   kernel/irq/msi.c:384:56: note: place parentheses around the '?:' expression to evaluate it first
           desc = xa_load(&dev->msi.data->__store, base + pcimsi ? 0 : index);
                                                                 ^
                                                          (                 )
   1 warning generated.


vim +384 kernel/irq/msi.c

   352	
   353	/**
   354	 * msi_domain_get_virq - Lookup the Linux interrupt number for a MSI index on a interrupt domain
   355	 * @dev:	Device to operate on
   356	 * @domid:	Domain ID of the interrupt domain associated to the device
   357	 * @index:	MSI interrupt index to look for (0-based)
   358	 *
   359	 * Return: The Linux interrupt number on success (> 0), 0 if not found
   360	 */
   361	unsigned int msi_domain_get_virq(struct device *dev, unsigned int domid, unsigned int index)
   362	{
   363		struct msi_desc *desc;
   364		unsigned int ret = 0;
   365		bool pcimsi = false;
   366		int base;
   367	
   368		if (!dev->msi.data)
   369			return 0;
   370	
   371		if (WARN_ON_ONCE(index >= MSI_MAX_INDEX))
   372			return 0;
   373	
   374		/* This check is only valid for the PCI default MSI domain */
   375		if (dev_is_pci(dev) && domid == MSI_DEFAULT_DOMAIN)
   376			pcimsi = to_pci_dev(dev)->msi_enabled;
   377	
   378		msi_lock_descs(dev);
   379	
   380		base = msi_get_domain_base_index(dev, domid);
   381		if (base < 0)
   382			return 0;
   383	
 > 384		desc = xa_load(&dev->msi.data->__store, base + pcimsi ? 0 : index);
   385		if (desc && desc->irq) {
   386			/*
   387			 * PCI-MSI has only one descriptor for multiple interrupts.
   388			 * PCI-MSIX and platform MSI use a descriptor per
   389			 * interrupt.
   390			 */
   391			if (pcimsi) {
   392				if (index < desc->nvec_used)
   393					ret = desc->irq + index;
   394			} else {
   395				ret = desc->irq;
   396			}
   397		}
   398		msi_unlock_descs(dev);
   399		return ret;
   400	}
   401	EXPORT_SYMBOL_GPL(msi_domain_get_virq);
   402	

-- 
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