Hi Sibi, kernel test robot noticed the following build errors: [auto build test ERROR on robh/for-next] [also build test ERROR on linus/master v6.10-rc2 next-20240604] [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/Sibi-Sankar/dt-bindings-mailbox-qcom-Add-CPUCP-mailbox-controller-bindings/20240604-050256 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240603205859.2212225-3-quic_sibis%40quicinc.com patch subject: [PATCH V5 2/5] mailbox: Add support for QTI CPUCP mailbox controller config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20240604/202406041620.FyEU8GRv-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240604/202406041620.FyEU8GRv-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/202406041620.FyEU8GRv-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/mailbox/qcom-cpucp-mbox.c: In function 'qcom_cpucp_mbox_irq_fn': >> drivers/mailbox/qcom-cpucp-mbox.c:54:18: error: implicit declaration of function 'readq'; did you mean 'readb'? [-Werror=implicit-function-declaration] 54 | status = readq(cpucp->rx_base + APSS_CPUCP_RX_MBOX_STAT); | ^~~~~ | readb >> drivers/mailbox/qcom-cpucp-mbox.c:65:17: error: implicit declaration of function 'writeq'; did you mean 'writeb'? [-Werror=implicit-function-declaration] 65 | writeq(BIT(i), cpucp->rx_base + APSS_CPUCP_RX_MBOX_CLEAR); | ^~~~~~ | writeb cc1: some warnings being treated as errors vim +54 drivers/mailbox/qcom-cpucp-mbox.c 47 48 static irqreturn_t qcom_cpucp_mbox_irq_fn(int irq, void *data) 49 { 50 struct qcom_cpucp_mbox *cpucp = data; 51 u64 status; 52 int i; 53 > 54 status = readq(cpucp->rx_base + APSS_CPUCP_RX_MBOX_STAT); 55 56 for_each_set_bit(i, (unsigned long *)&status, APSS_CPUCP_IPC_CHAN_SUPPORTED) { 57 u32 val = readl(cpucp->rx_base + APSS_CPUCP_RX_MBOX_CMD(i) + APSS_CPUCP_MBOX_CMD_OFF); 58 struct mbox_chan *chan = &cpucp->chans[i]; 59 unsigned long flags; 60 61 /* Provide mutual exclusion with changes to chan->cl */ 62 spin_lock_irqsave(&chan->lock, flags); 63 if (chan->cl) 64 mbox_chan_received_data(chan, &val); > 65 writeq(BIT(i), cpucp->rx_base + APSS_CPUCP_RX_MBOX_CLEAR); 66 spin_unlock_irqrestore(&chan->lock, flags); 67 } 68 69 return IRQ_HANDLED; 70 } 71 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki