Hi Shivnandan, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.11 next-20240924] [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/Shivnandan-Kumar/dt-bindings-mailbox-qcom-cpucp-mbox-Add-sc7280-cpucp-mailbox-instance/20240924-133657 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240924050941.1251485-3-quic_kshivnan%40quicinc.com patch subject: [PATCH 2/3] mailbox: qcom-cpucp-mbox: Add support for SC7280 CPUCP mailbox controller config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20240924/202409242349.yXq4CDaH-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240924/202409242349.yXq4CDaH-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/202409242349.yXq4CDaH-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/mailbox/qcom-cpucp-mbox.c:48: warning: Function parameter or struct member 'desc' not described in 'qcom_cpucp_mbox' vim +48 drivers/mailbox/qcom-cpucp-mbox.c 0e2a9a03106cd5 Sibi Sankar 2024-06-12 34 0e2a9a03106cd5 Sibi Sankar 2024-06-12 35 /** 0e2a9a03106cd5 Sibi Sankar 2024-06-12 36 * struct qcom_cpucp_mbox - Holder for the mailbox driver 0e2a9a03106cd5 Sibi Sankar 2024-06-12 37 * @chans: The mailbox channel 0e2a9a03106cd5 Sibi Sankar 2024-06-12 38 * @mbox: The mailbox controller 0e2a9a03106cd5 Sibi Sankar 2024-06-12 39 * @tx_base: Base address of the CPUCP tx registers 0e2a9a03106cd5 Sibi Sankar 2024-06-12 40 * @rx_base: Base address of the CPUCP rx registers 0e2a9a03106cd5 Sibi Sankar 2024-06-12 41 */ 0e2a9a03106cd5 Sibi Sankar 2024-06-12 42 struct qcom_cpucp_mbox { 0e2a9a03106cd5 Sibi Sankar 2024-06-12 43 struct mbox_chan chans[APSS_CPUCP_IPC_CHAN_SUPPORTED]; 654ed3904f995a Shivnandan Kumar 2024-09-24 44 const struct qcom_cpucp_mbox_desc *desc; 0e2a9a03106cd5 Sibi Sankar 2024-06-12 45 struct mbox_controller mbox; 0e2a9a03106cd5 Sibi Sankar 2024-06-12 46 void __iomem *tx_base; 0e2a9a03106cd5 Sibi Sankar 2024-06-12 47 void __iomem *rx_base; 0e2a9a03106cd5 Sibi Sankar 2024-06-12 @48 }; 0e2a9a03106cd5 Sibi Sankar 2024-06-12 49 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki