Hi jeshwank, kernel test robot noticed the following build warnings: [auto build test WARNING on herbert-crypto-2.6/master] [also build test WARNING on linus/master v6.6-rc7] [cannot apply to herbert-cryptodev-2.6/master next-20231025] [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/jeshwank/crypto-ccp-Add-function-to-allocate-and-free-memory-using-DMA-APIs/20231025-150420 base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git master patch link: https://lore.kernel.org/r/20231025065700.1556152-3-JESHWANTHKUMAR.NK%40amd.com patch subject: [PATCH 2/3] crypto: ccp - Use psp_tee_alloc_buffer() and psp_tee_free_buffer() config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231026/202310260529.GEey5HQc-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231026/202310260529.GEey5HQc-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/202310260529.GEey5HQc-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/tee-dev.c:123:24: warning: no previous prototype for 'tee_alloc_cmd_buffer' [-Wmissing-prototypes] 123 | struct psp_tee_buffer *tee_alloc_cmd_buffer(struct psp_tee_device *tee) | ^~~~~~~~~~~~~~~~~~~~ vim +/tee_alloc_cmd_buffer +123 drivers/crypto/ccp/tee-dev.c 122 > 123 struct psp_tee_buffer *tee_alloc_cmd_buffer(struct psp_tee_device *tee) 124 { 125 struct tee_init_ring_cmd *cmd; 126 struct psp_tee_buffer *cmd_buffer; 127 128 cmd_buffer = psp_tee_alloc_buffer(sizeof(*cmd), 129 GFP_KERNEL | __GFP_ZERO); 130 if (!cmd_buffer) 131 return NULL; 132 133 cmd = (struct tee_init_ring_cmd *)cmd_buffer->vaddr; 134 cmd->hi_addr = upper_32_bits(tee->rb_mgr.ring_buf->paddr); 135 cmd->low_addr = lower_32_bits(tee->rb_mgr.ring_buf->paddr); 136 cmd->size = tee->rb_mgr.ring_buf->size; 137 138 dev_dbg(tee->dev, "tee: ring address: high = 0x%x low = 0x%x size = %u\n", 139 cmd->hi_addr, cmd->low_addr, cmd->size); 140 141 return cmd_buffer; 142 } 143 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
