Re: [PATCH v2 1/7] dmaengine:Add COMPILE_TEST for easy testing

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Hi Liao,

kernel test robot noticed the following build warnings:

[auto build test WARNING on vkoul-dmaengine/next]
[also build test WARNING on shawnguo/for-next soc/for-next linus/master v6.11-rc5 next-20240830]
[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/Liao-Yuanhong/dmaengine-Add-COMPILE_TEST-for-easy-testing/20240830-174451
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
patch link:    https://lore.kernel.org/r/20240830094118.15458-2-liaoyuanhong%40vivo.com
patch subject: [PATCH v2 1/7] dmaengine:Add COMPILE_TEST for easy testing
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240831/202408312025.Tjnlxn0W-lkp@xxxxxxxxx/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/20240831/202408312025.Tjnlxn0W-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/202408312025.Tjnlxn0W-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/dma/at_hdmac.c:891:45: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
     890 |                  "%s: src=%pad, dest=%pad, numf=%d, frame_size=%d, flags=0x%lx\n",
         |                                                 ~~
         |                                                 %zu
     891 |                 __func__, &xt->src_start, &xt->dst_start, xt->numf,
         |                                                           ^~~~~~~~
   include/linux/dev_printk.h:160:67: note: expanded from macro 'dev_info'
     160 |         dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                                  ~~~     ^~~~~~~~~~~
   include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                              ~~~    ^~~~~~~~~~~
   drivers/dma/at_hdmac.c:892:3: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
     890 |                  "%s: src=%pad, dest=%pad, numf=%d, frame_size=%d, flags=0x%lx\n",
         |                                                                ~~
         |                                                                %zu
     891 |                 __func__, &xt->src_start, &xt->dst_start, xt->numf,
     892 |                 xt->frame_size, flags);
         |                 ^~~~~~~~~~~~~~
   include/linux/dev_printk.h:160:67: note: expanded from macro 'dev_info'
     160 |         dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                                  ~~~     ^~~~~~~~~~~
   include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                              ~~~    ^~~~~~~~~~~
>> drivers/dma/at_hdmac.c:1178:11: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'unsigned int' [-Wformat]
    1177 |         dev_vdbg(chan2dev(chan), "%s: v0x%x l0x%zx f0x%lx\n", __func__,
         |                                                ~~~
         |                                                %x
    1178 |                  value, sg_len, flags);
         |                         ^~~~~~
   include/linux/dev_printk.h:261:18: note: expanded from macro 'dev_vdbg'
     261 | #define dev_vdbg        dev_dbg
         |                         ^
   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/at_hdmac.c:1509:13: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
    1506 |         dev_vdbg(chan2dev(chan), "prep_dma_cyclic: %s buf@%pad - %d (%d/%d)\n",
         |                                                                      ~~
         |                                                                      %zu
    1507 |                         direction == DMA_MEM_TO_DEV ? "TO DEVICE" : "FROM DEVICE",
    1508 |                         &buf_addr,
    1509 |                         periods, buf_len, period_len);
         |                                  ^~~~~~~
   include/linux/dev_printk.h:261:18: note: expanded from macro 'dev_vdbg'
     261 | #define dev_vdbg        dev_dbg
         |                         ^
   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/at_hdmac.c:1509:22: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
    1506 |         dev_vdbg(chan2dev(chan), "prep_dma_cyclic: %s buf@%pad - %d (%d/%d)\n",
         |                                                                         ~~
         |                                                                         %zu
    1507 |                         direction == DMA_MEM_TO_DEV ? "TO DEVICE" : "FROM DEVICE",
    1508 |                         &buf_addr,
    1509 |                         periods, buf_len, period_len);
         |                                           ^~~~~~~~~~
   include/linux/dev_printk.h:261:18: note: expanded from macro 'dev_vdbg'
     261 | #define dev_vdbg        dev_dbg
         |                         ^
   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__);                       \
         |                             ^~~~~~~~~~~
   5 warnings generated.


vim +891 drivers/dma/at_hdmac.c

dc78baa2b90b28 Nicolas Ferre       2009-07-03  858  
dc78baa2b90b28 Nicolas Ferre       2009-07-03  859  /*--  DMA Engine API  --------------------------------------------------*/
5abecfa5e96972 Maxime Ripard       2015-05-27  860  /**
5abecfa5e96972 Maxime Ripard       2015-05-27  861   * atc_prep_dma_interleaved - prepare memory to memory interleaved operation
5abecfa5e96972 Maxime Ripard       2015-05-27  862   * @chan: the channel to prepare operation on
5abecfa5e96972 Maxime Ripard       2015-05-27  863   * @xt: Interleaved transfer template
5abecfa5e96972 Maxime Ripard       2015-05-27  864   * @flags: tx descriptor status flags
5abecfa5e96972 Maxime Ripard       2015-05-27  865   */
5abecfa5e96972 Maxime Ripard       2015-05-27  866  static struct dma_async_tx_descriptor *
5abecfa5e96972 Maxime Ripard       2015-05-27  867  atc_prep_dma_interleaved(struct dma_chan *chan,
5abecfa5e96972 Maxime Ripard       2015-05-27  868  			 struct dma_interleaved_template *xt,
5abecfa5e96972 Maxime Ripard       2015-05-27  869  			 unsigned long flags)
5abecfa5e96972 Maxime Ripard       2015-05-27  870  {
ac803b56860f65 Tudor Ambarus       2022-10-25  871  	struct at_dma		*atdma = to_at_dma(chan->device);
5abecfa5e96972 Maxime Ripard       2015-05-27  872  	struct at_dma_chan	*atchan = to_at_dma_chan(chan);
62a277d43d47e7 Gustavo A. R. Silva 2017-11-20  873  	struct data_chunk	*first;
ac803b56860f65 Tudor Ambarus       2022-10-25  874  	struct atdma_sg		*atdma_sg;
ac803b56860f65 Tudor Ambarus       2022-10-25  875  	struct at_desc		*desc;
ac803b56860f65 Tudor Ambarus       2022-10-25  876  	struct at_lli		*lli;
5abecfa5e96972 Maxime Ripard       2015-05-27  877  	size_t			xfer_count;
5abecfa5e96972 Maxime Ripard       2015-05-27  878  	unsigned int		dwidth;
5abecfa5e96972 Maxime Ripard       2015-05-27  879  	u32			ctrla;
5abecfa5e96972 Maxime Ripard       2015-05-27  880  	u32			ctrlb;
5abecfa5e96972 Maxime Ripard       2015-05-27  881  	size_t			len = 0;
5abecfa5e96972 Maxime Ripard       2015-05-27  882  	int			i;
5abecfa5e96972 Maxime Ripard       2015-05-27  883  
4483320e241c5f Maninder Singh      2015-06-26  884  	if (unlikely(!xt || xt->numf != 1 || !xt->frame_size))
4483320e241c5f Maninder Singh      2015-06-26  885  		return NULL;
4483320e241c5f Maninder Singh      2015-06-26  886  
62a277d43d47e7 Gustavo A. R. Silva 2017-11-20  887  	first = xt->sgl;
62a277d43d47e7 Gustavo A. R. Silva 2017-11-20  888  
5abecfa5e96972 Maxime Ripard       2015-05-27  889  	dev_info(chan2dev(chan),
2c5d7407e01272 Arnd Bergmann       2015-11-12  890  		 "%s: src=%pad, dest=%pad, numf=%d, frame_size=%d, flags=0x%lx\n",
2c5d7407e01272 Arnd Bergmann       2015-11-12 @891  		__func__, &xt->src_start, &xt->dst_start, xt->numf,
5abecfa5e96972 Maxime Ripard       2015-05-27  892  		xt->frame_size, flags);
5abecfa5e96972 Maxime Ripard       2015-05-27  893  
5abecfa5e96972 Maxime Ripard       2015-05-27  894  	/*
5abecfa5e96972 Maxime Ripard       2015-05-27  895  	 * The controller can only "skip" X bytes every Y bytes, so we
5abecfa5e96972 Maxime Ripard       2015-05-27  896  	 * need to make sure we are given a template that fit that
5abecfa5e96972 Maxime Ripard       2015-05-27  897  	 * description, ie a template with chunks that always have the
5abecfa5e96972 Maxime Ripard       2015-05-27  898  	 * same size, with the same ICGs.
5abecfa5e96972 Maxime Ripard       2015-05-27  899  	 */
5abecfa5e96972 Maxime Ripard       2015-05-27  900  	for (i = 0; i < xt->frame_size; i++) {
5abecfa5e96972 Maxime Ripard       2015-05-27  901  		struct data_chunk *chunk = xt->sgl + i;
5abecfa5e96972 Maxime Ripard       2015-05-27  902  
5abecfa5e96972 Maxime Ripard       2015-05-27  903  		if ((chunk->size != xt->sgl->size) ||
5abecfa5e96972 Maxime Ripard       2015-05-27  904  		    (dmaengine_get_dst_icg(xt, chunk) != dmaengine_get_dst_icg(xt, first)) ||
5abecfa5e96972 Maxime Ripard       2015-05-27  905  		    (dmaengine_get_src_icg(xt, chunk) != dmaengine_get_src_icg(xt, first))) {
5abecfa5e96972 Maxime Ripard       2015-05-27  906  			dev_err(chan2dev(chan),
5abecfa5e96972 Maxime Ripard       2015-05-27  907  				"%s: the controller can transfer only identical chunks\n",
5abecfa5e96972 Maxime Ripard       2015-05-27  908  				__func__);
5abecfa5e96972 Maxime Ripard       2015-05-27  909  			return NULL;
5abecfa5e96972 Maxime Ripard       2015-05-27  910  		}
5abecfa5e96972 Maxime Ripard       2015-05-27  911  
5abecfa5e96972 Maxime Ripard       2015-05-27  912  		len += chunk->size;
5abecfa5e96972 Maxime Ripard       2015-05-27  913  	}
5abecfa5e96972 Maxime Ripard       2015-05-27  914  
ac803b56860f65 Tudor Ambarus       2022-10-25  915  	dwidth = atc_get_xfer_width(xt->src_start, xt->dst_start, len);
5abecfa5e96972 Maxime Ripard       2015-05-27  916  
5abecfa5e96972 Maxime Ripard       2015-05-27  917  	xfer_count = len >> dwidth;
5abecfa5e96972 Maxime Ripard       2015-05-27  918  	if (xfer_count > ATC_BTSIZE_MAX) {
5abecfa5e96972 Maxime Ripard       2015-05-27  919  		dev_err(chan2dev(chan), "%s: buffer is too big\n", __func__);
5abecfa5e96972 Maxime Ripard       2015-05-27  920  		return NULL;
5abecfa5e96972 Maxime Ripard       2015-05-27  921  	}
5abecfa5e96972 Maxime Ripard       2015-05-27  922  
d8840a7edcf0aa Tudor Ambarus       2022-10-25  923  	ctrla = FIELD_PREP(ATC_SRC_WIDTH, dwidth) |
d8840a7edcf0aa Tudor Ambarus       2022-10-25  924  		FIELD_PREP(ATC_DST_WIDTH, dwidth);
5abecfa5e96972 Maxime Ripard       2015-05-27  925  
d8840a7edcf0aa Tudor Ambarus       2022-10-25  926  	ctrlb = ATC_DEFAULT_CTRLB | ATC_IEN |
d8840a7edcf0aa Tudor Ambarus       2022-10-25  927  		FIELD_PREP(ATC_SRC_ADDR_MODE, ATC_SRC_ADDR_MODE_INCR) |
d8840a7edcf0aa Tudor Ambarus       2022-10-25  928  		FIELD_PREP(ATC_DST_ADDR_MODE, ATC_DST_ADDR_MODE_INCR) |
d8840a7edcf0aa Tudor Ambarus       2022-10-25  929  		ATC_SRC_PIP | ATC_DST_PIP |
d8840a7edcf0aa Tudor Ambarus       2022-10-25  930  		FIELD_PREP(ATC_FC, ATC_FC_MEM2MEM);
5abecfa5e96972 Maxime Ripard       2015-05-27  931  
ac803b56860f65 Tudor Ambarus       2022-10-25  932  	desc = kzalloc(struct_size(desc, sg, 1), GFP_ATOMIC);
ac803b56860f65 Tudor Ambarus       2022-10-25  933  	if (!desc)
ac803b56860f65 Tudor Ambarus       2022-10-25  934  		return NULL;
ac803b56860f65 Tudor Ambarus       2022-10-25  935  	desc->sglen = 1;
ac803b56860f65 Tudor Ambarus       2022-10-25  936  
ac803b56860f65 Tudor Ambarus       2022-10-25  937  	atdma_sg = desc->sg;
ac803b56860f65 Tudor Ambarus       2022-10-25  938  	atdma_sg->lli = dma_pool_alloc(atdma->lli_pool, GFP_NOWAIT,
ac803b56860f65 Tudor Ambarus       2022-10-25  939  				       &atdma_sg->lli_phys);
ac803b56860f65 Tudor Ambarus       2022-10-25  940  	if (!atdma_sg->lli) {
ac803b56860f65 Tudor Ambarus       2022-10-25  941  		kfree(desc);
5abecfa5e96972 Maxime Ripard       2015-05-27  942  		return NULL;
5abecfa5e96972 Maxime Ripard       2015-05-27  943  	}
ac803b56860f65 Tudor Ambarus       2022-10-25  944  	lli = atdma_sg->lli;
5abecfa5e96972 Maxime Ripard       2015-05-27  945  
ac803b56860f65 Tudor Ambarus       2022-10-25  946  	lli->saddr = xt->src_start;
ac803b56860f65 Tudor Ambarus       2022-10-25  947  	lli->daddr = xt->dst_start;
ac803b56860f65 Tudor Ambarus       2022-10-25  948  	lli->ctrla = ctrla | xfer_count;
ac803b56860f65 Tudor Ambarus       2022-10-25  949  	lli->ctrlb = ctrlb;
5abecfa5e96972 Maxime Ripard       2015-05-27  950  
5abecfa5e96972 Maxime Ripard       2015-05-27  951  	desc->boundary = first->size >> dwidth;
5abecfa5e96972 Maxime Ripard       2015-05-27  952  	desc->dst_hole = (dmaengine_get_dst_icg(xt, first) >> dwidth) + 1;
5abecfa5e96972 Maxime Ripard       2015-05-27  953  	desc->src_hole = (dmaengine_get_src_icg(xt, first) >> dwidth) + 1;
5abecfa5e96972 Maxime Ripard       2015-05-27  954  
ac803b56860f65 Tudor Ambarus       2022-10-25  955  	atdma_sg->len = len;
ac803b56860f65 Tudor Ambarus       2022-10-25  956  	desc->total_len = len;
5abecfa5e96972 Maxime Ripard       2015-05-27  957  
ac803b56860f65 Tudor Ambarus       2022-10-25  958  	set_lli_eol(desc, 0);
ac803b56860f65 Tudor Ambarus       2022-10-25  959  	return vchan_tx_prep(&atchan->vc, &desc->vd, flags);
5abecfa5e96972 Maxime Ripard       2015-05-27  960  }
5abecfa5e96972 Maxime Ripard       2015-05-27  961  

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