Hi Bence, kernel test robot noticed the following build errors: [auto build test ERROR on next-20241220] url: https://github.com/intel-lab-lkp/linux/commits/Bence-Cs-k-s/dma-Add-devm_dma_request_chan/20241220-211523 base: next-20241220 patch link: https://lore.kernel.org/r/20241220131350.544009-1-csokas.bence%40prolan.hu patch subject: [PATCH next] dma: Add devm_dma_request_chan() config: i386-buildonly-randconfig-004-20241221 (https://download.01.org/0day-ci/archive/20241221/202412211736.wXS6zm9z-lkp@xxxxxxxxx/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241221/202412211736.wXS6zm9z-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/202412211736.wXS6zm9z-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): >> drivers/dma/dmaengine.c:953:18: error: incompatible integer to pointer conversion passing 'int' to parameter of type 'const void *' [-Wint-conversion] 953 | return PTR_ERR(ret); | ^~~ include/linux/err.h:52:61: note: passing argument to parameter 'ptr' here 52 | static inline long __must_check PTR_ERR(__force const void *ptr) | ^ >> drivers/dma/dmaengine.c:953:10: error: incompatible integer to pointer conversion returning 'long' from a function with result type 'struct dma_chan *' [-Wint-conversion] 953 | return PTR_ERR(ret); | ^~~~~~~~~~~~ >> drivers/dma/dmaengine.c:944:18: warning: no previous prototype for function 'devm_dma_request_chan' [-Wmissing-prototypes] 944 | struct dma_chan *devm_dma_request_chan(struct device *dev, const char *name) | ^ drivers/dma/dmaengine.c:944:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 944 | struct dma_chan *devm_dma_request_chan(struct device *dev, const char *name) | ^ | static 1 warning and 2 errors generated. vim +953 drivers/dma/dmaengine.c 933 934 /** 935 * devm_dma_request_chan - try to allocate an exclusive slave channel 936 * @dev: pointer to client device structure 937 * @name: slave channel name 938 * 939 * Returns pointer to appropriate DMA channel on success or an error pointer. 940 * 941 * The operation is managed and will be undone on driver detach. 942 */ 943 > 944 struct dma_chan *devm_dma_request_chan(struct device *dev, const char *name) 945 { 946 struct dma_chan *chan = dma_request_chan(dev, name); 947 int ret = 0; 948 949 if (!IS_ERR(chan)) 950 ret = devm_add_action_or_reset(dev, dmaenginem_release_channel, chan); 951 952 if (ret) > 953 return PTR_ERR(ret); 954 955 return chan; 956 } 957 EXPORT_SYMBOL_GPL(devm_dma_request_chan); 958 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
