Hi Chen, kernel test robot noticed the following build warnings: [auto build test WARNING on fac04efc5c793dccbd07e2d59af9f90b7fc0dca4] url: https://github.com/intel-lab-lkp/linux/commits/Chen-Wang/dt-bindings-interrupt-controller-Add-Sophgo-SG2042-MSI/20241209-151429 base: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 patch link: https://lore.kernel.org/r/c882fe329932409131be76ce47b81a6155595ce4.1733726057.git.unicorn_wang%40outlook.com patch subject: [PATCH v2 2/3] irqchip: Add the Sophgo SG2042 MSI interrupt controller config: arm-randconfig-r131-20241210 (https://download.01.org/0day-ci/archive/20241211/202412110248.fdcNDwnt-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20241211/202412110248.fdcNDwnt-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412110248.fdcNDwnt-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/irqchip/irq-sg2042-msi.c:64:9: sparse: sparse: cast removes address space '__iomem' of expression >> drivers/irqchip/irq-sg2042-msi.c:64:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned int * @@ drivers/irqchip/irq-sg2042-msi.c:64:9: sparse: expected void volatile [noderef] __iomem *addr drivers/irqchip/irq-sg2042-msi.c:64:9: sparse: got unsigned int * vim +/__iomem +64 drivers/irqchip/irq-sg2042-msi.c 58 59 static void sg2042_msi_irq_ack(struct irq_data *d) 60 { 61 struct sg2042_msi_data *data = irq_data_get_irq_chip_data(d); 62 int bit_off = d->hwirq - data->irq_first; 63 > 64 writel(1 << bit_off, (unsigned int *)data->reg_clr); 65 66 irq_chip_ack_parent(d); 67 } 68 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
