Re: [PATCH RESEND v9 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA driver

Re: [PATCH RESEND v9 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA driver

[kernel test robot]

Hi Keguang,

kernel test robot noticed the following build warnings:

[auto build test WARNING on d35b2284e966c0bef3e2182a5c5ea02177dd32e4]

url:    https://github.com/intel-lab-lkp/linux/commits/Keguang-Zhang-via-B4-Relay/dt-bindings-dma-Add-Loongson-1-APB-DMA/20240711-191657
base:   d35b2284e966c0bef3e2182a5c5ea02177dd32e4
patch link:    https://lore.kernel.org/r/20240711-loongson1-dma-v9-2-5ce8b5e85a56%40gmail.com
patch subject: [PATCH RESEND v9 2/2] dmaengine: Loongson1: Add Loongson-1 APB DMA driver
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240714/202407140701.jQbPNAYb-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240714/202407140701.jQbPNAYb-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407140701.jQbPNAYb-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/dma/loongson1-apb-dma.c:138:18: warning: format specifies type 'unsigned int' but the argument has type 'dma_addr_t' (aka 'unsigned long long') [-Wformat]
     137 |         dev_dbg(chan2dev(dchan), "cookie=%d, starting hwdesc=%x\n",
         |                                                              ~~
         |                                                              %llx
     138 |                 dchan->cookie, *hwdesc_phys);
         |                                ^~~~~~~~~~~~
   include/linux/dev_printk.h:165:39: note: expanded from macro 'dev_dbg'
     165 |         dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                      ~~~     ^~~~~~~~~~~
   include/linux/dynamic_debug.h:274:19: note: expanded from macro 'dynamic_dev_dbg'
     274 |                            dev, fmt, ##__VA_ARGS__)
         |                                 ~~~    ^~~~~~~~~~~
   include/linux/dynamic_debug.h:250:59: note: expanded from macro '_dynamic_func_call'
     250 |         _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
         |                                                                  ^~~~~~~~~~~
   include/linux/dynamic_debug.h:248:65: note: expanded from macro '_dynamic_func_call_cls'
     248 |         __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
         |                                                                        ^~~~~~~~~~~
   include/linux/dynamic_debug.h:224:15: note: expanded from macro '__dynamic_func_call_cls'
     224 |                 func(&id, ##__VA_ARGS__);                       \
         |                             ^~~~~~~~~~~
>> drivers/dma/loongson1-apb-dma.c:338:53: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
     338 |                 "buf_len=%d period_len=%zu flags=0x%lx dir=%s\n", buf_len,
         |                          ~~                                       ^~~~~~~
         |                          %zu
   include/linux/dev_printk.h:165:39: note: expanded from macro 'dev_dbg'
     165 |         dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                      ~~~     ^~~~~~~~~~~
   include/linux/dynamic_debug.h:274:19: note: expanded from macro 'dynamic_dev_dbg'
     274 |                            dev, fmt, ##__VA_ARGS__)
         |                                 ~~~    ^~~~~~~~~~~
   include/linux/dynamic_debug.h:250:59: note: expanded from macro '_dynamic_func_call'
     250 |         _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
         |                                                                  ^~~~~~~~~~~
   include/linux/dynamic_debug.h:248:65: note: expanded from macro '_dynamic_func_call_cls'
     248 |         __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
         |                                                                        ^~~~~~~~~~~
   include/linux/dynamic_debug.h:224:15: note: expanded from macro '__dynamic_func_call_cls'
     224 |                 func(&id, ##__VA_ARGS__);                       \
         |                             ^~~~~~~~~~~
   2 warnings generated.


vim +138 drivers/dma/loongson1-apb-dma.c

   130	
   131	static inline int ls1x_dma_start(struct ls1x_dma_chan *chan,
   132					 dma_addr_t *hwdesc_phys)
   133	{
   134		struct dma_chan *dchan = &chan->vchan.chan;
   135		int val, ret;
   136	
   137		dev_dbg(chan2dev(dchan), "cookie=%d, starting hwdesc=%x\n",
 > 138			dchan->cookie, *hwdesc_phys);
   139	
   140		val = *hwdesc_phys & DMA_ADDR_MASK;
   141		val |= DMA_START;
   142		val |= dchan->chan_id;
   143		chan_writel(chan, DMA_CTRL, val);
   144		ret = readl_poll_timeout(chan->reg_base + DMA_CTRL, val,
   145					 !(val & DMA_START), 0, 3000);
   146		if (ret)
   147			dev_err(chan2dev(dchan), "failed to start DMA\n");
   148	
   149		return ret;
   150	}
   151	

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