Hi Yuntao, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.10 next-20240715] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yuntao-Dai/dt-bindings-mailbox-add-Sophgo-cv18x-SoCs-mailbox/20240715-003952 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/SYBP282MB2238F93565D20F0A5F3EEB6BC4A02%40SYBP282MB2238.AUSP282.PROD.OUTLOOK.COM patch subject: [PATCH v2 3/3] mailbox: sophgo: add mailbox driver for cv18x SoCs config: powerpc-randconfig-r113-20240715 (https://download.01.org/0day-ci/archive/20240715/202407151649.ExTr3xXL-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240715/202407151649.ExTr3xXL-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/202407151649.ExTr3xXL-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/mailbox/cv1800-mailbox.c:56:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *data @@ got unsigned long long [noderef] [usertype] __iomem * @@ drivers/mailbox/cv1800-mailbox.c:56:62: sparse: expected void *data drivers/mailbox/cv1800-mailbox.c:56:62: sparse: got unsigned long long [noderef] [usertype] __iomem * >> drivers/mailbox/cv1800-mailbox.c:78:25: sparse: sparse: cast removes address space '__iomem' of expression >> drivers/mailbox/cv1800-mailbox.c:78:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long [noderef] [usertype] __iomem *addr @@ got unsigned long long [usertype] * @@ drivers/mailbox/cv1800-mailbox.c:78:22: sparse: expected unsigned long long [noderef] [usertype] __iomem *addr drivers/mailbox/cv1800-mailbox.c:78:22: sparse: got unsigned long long [usertype] * drivers/mailbox/cv1800-mailbox.c:102:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/mailbox/cv1800-mailbox.c:102:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned long long [noderef] [usertype] __iomem *addr @@ got unsigned long long [usertype] * @@ drivers/mailbox/cv1800-mailbox.c:102:14: sparse: expected unsigned long long [noderef] [usertype] __iomem *addr drivers/mailbox/cv1800-mailbox.c:102:14: sparse: got unsigned long long [usertype] * vim +56 drivers/mailbox/cv1800-mailbox.c 47 48 static irqreturn_t cv1800_mbox_isr(int irq, void *dev_id) 49 { 50 struct cv1800_mbox *mbox = (struct cv1800_mbox *)dev_id; 51 size_t i; 52 53 for (i = 0; i < MAILBOX_MAX_CHAN; i++) { 54 if (mbox->content[i] && mbox->chans[i].cl) { 55 mbox_chan_received_data(&mbox->chans[i], > 56 mbox->content[i]); 57 mbox->content[i] = NULL; 58 return IRQ_HANDLED; 59 } 60 } 61 return IRQ_NONE; 62 } 63 64 static irqreturn_t cv1800_mbox_irq(int irq, void *dev_id) 65 { 66 struct cv1800_mbox *mbox = (struct cv1800_mbox *)dev_id; 67 u64 __iomem *addr; 68 u8 set, valid; 69 size_t i; 70 71 set = readb(mbox->mbox_base + MBOX_SET_INT_REG(RECV_CPU)); 72 73 if (!set) 74 return IRQ_NONE; 75 76 for (i = 0; i < MAILBOX_MAX_CHAN; i++) { 77 valid = set & (1 << i); > 78 addr = (u64 *)(mbox->mbox_base + MAILBOX_CONTEXT_OFFSET) + i; 79 if (valid) { 80 mbox->content[i] = addr; 81 writeb(valid, 82 mbox->mbox_base + MBOX_SET_CLR_REG(RECV_CPU)); 83 writeb(~valid, mbox->mbox_base + MBOX_EN_REG(RECV_CPU)); 84 return IRQ_WAKE_THREAD; 85 } 86 } 87 88 return IRQ_NONE; 89 } 90 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
