Hi Guo, kernel test robot noticed the following build warnings: [auto build test WARNING on vkoul-dmaengine/next] [also build test WARNING on linus/master v6.5-rc5 next-20230809] [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/Guo-Mengqi/dmaengine-Add-HiSilicon-Ascend-SDMA-engine-support/20230811-115823 base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next patch link: https://lore.kernel.org/r/20230811034822.107229-2-guomengqi3%40huawei.com patch subject: [PATCH 1/2] dmaengine: Add HiSilicon Ascend SDMA engine support config: csky-randconfig-r003-20230811 (https://download.01.org/0day-ci/archive/20230811/202308111712.7M4TmcC2-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230811/202308111712.7M4TmcC2-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/202308111712.7M4TmcC2-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/dma/ascend_sdma.c:191:6: warning: no previous prototype for 'set_sdma_channel_info' [-Wmissing-prototypes] 191 | void set_sdma_channel_info(struct dma_chan *c, int pasid) | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/kernel.h:30, from drivers/dma/ascend_sdma.c:4: drivers/dma/ascend_sdma.c: In function 'of_sdma_collect_info': >> include/linux/kern_levels.h:5:25: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/printk.h:427:25: note: in definition of macro 'printk_index_wrap' 427 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~ include/linux/printk.h:508:9: note: in expansion of macro 'printk' 508 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~ include/linux/kern_levels.h:12:25: note: in expansion of macro 'KERN_SOH' 12 | #define KERN_WARNING KERN_SOH "4" /* warning conditions */ | ^~~~~~~~ include/linux/printk.h:508:16: note: in expansion of macro 'KERN_WARNING' 508 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~ drivers/dma/ascend_sdma.c:234:17: note: in expansion of macro 'pr_warn' 234 | pr_warn("reg size %#llx check failed, use %#x\n", | ^~~~~~~ drivers/dma/ascend_sdma.c: At top level: >> drivers/dma/ascend_sdma.c:490:33: warning: no previous prototype for 'sdma_prep_dma_memcpy' [-Wmissing-prototypes] 490 | struct dma_async_tx_descriptor *sdma_prep_dma_memcpy( | ^~~~~~~~~~~~~~~~~~~~ >> drivers/dma/ascend_sdma.c:520:5: warning: no previous prototype for 'sdma_terminate_all' [-Wmissing-prototypes] 520 | int sdma_terminate_all(struct dma_chan *chan) | ^~~~~~~~~~~~~~~~~~ >> drivers/dma/ascend_sdma.c:528:6: warning: no previous prototype for 'sdma_synchronize' [-Wmissing-prototypes] 528 | void sdma_synchronize(struct dma_chan *chan) | ^~~~~~~~~~~~~~~~ >> drivers/dma/ascend_sdma.c:535:17: warning: no previous prototype for 'sdma_tx_status' [-Wmissing-prototypes] 535 | enum dma_status sdma_tx_status(struct dma_chan *chan, | ^~~~~~~~~~~~~~ drivers/dma/ascend_sdma.c: In function 'sdma_tx_status': drivers/dma/ascend_sdma.c:545:9: error: implicit declaration of function 'dsb' [-Werror=implicit-function-declaration] 545 | dsb(sy); | ^~~ drivers/dma/ascend_sdma.c:545:13: error: 'sy' undeclared (first use in this function); did you mean 'sc'? 545 | dsb(sy); | ^~ | sc drivers/dma/ascend_sdma.c:545:13: note: each undeclared identifier is reported only once for each function it appears in >> drivers/dma/ascend_sdma.c:540:22: warning: variable 'ch_ctrl_reg' set but not used [-Wunused-but-set-variable] 540 | u32 irq_reg, ch_ctrl_reg; | ^~~~~~~~~~~ drivers/dma/ascend_sdma.c: In function 'sdma_start_transfer': drivers/dma/ascend_sdma.c:633:9: error: implicit declaration of function 'dmb'; did you mean 'rmb'? [-Werror=implicit-function-declaration] 633 | dmb(sy); | ^~~ | rmb drivers/dma/ascend_sdma.c:633:13: error: 'sy' undeclared (first use in this function); did you mean 's8'? 633 | dmb(sy); | ^~ | s8 drivers/dma/ascend_sdma.c: At top level: >> drivers/dma/ascend_sdma.c:638:6: warning: no previous prototype for 'sdma_issue_pending' [-Wmissing-prototypes] 638 | void sdma_issue_pending(struct dma_chan *chan) | ^~~~~~~~~~~~~~~~~~ >> drivers/dma/ascend_sdma.c:651:6: warning: no previous prototype for 'sdma_free_chan_resources' [-Wmissing-prototypes] 651 | void sdma_free_chan_resources(struct dma_chan *chan) | ^~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/set_sdma_channel_info +191 drivers/dma/ascend_sdma.c 187 188 /* sdma supports sva transfer via iommu. 189 * client must first set the pasid. 190 */ > 191 void set_sdma_channel_info(struct dma_chan *c, int pasid) 192 { 193 struct sdma_chan *sc = to_sdma_chan(c); 194 195 sc->pasid = pasid; 196 } 197 EXPORT_SYMBOL_GPL(set_sdma_channel_info); 198 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
