Re: [kbuild-all] [PATCH V3 4/4] dma: add Qualcomm Technologies HIDMA channel driver
From: Fengguang Wu
Date: Tue Nov 10 2015 - 21:21:37 EST
Hi Sinan,
Sorry please ignore this warning -- it's actually a problem specific
to the mn10300 arch. I'll disable such warning in mn10300 in future.
Thanks,
Fengguang
On Sun, Nov 08, 2015 at 07:43:52PM -0500, Sinan Kaya wrote:
>
>
> On 11/8/2015 2:13 PM, kbuild test robot wrote:
> >Hi Sinan,
> >
> >[auto build test WARNING on: robh/for-next]
> >[also build test WARNING on: v4.3 next-20151106]
> >
> >url: https://github.com/0day-ci/linux/commits/Sinan-Kaya/ma-add-Qualcomm-Technologies-HIDMA-driver/20151108-125824
> >base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux for-next
> >config: mn10300-allyesconfig (attached as .config)
> >reproduce:
> > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> > chmod +x ~/bin/make.cross
> > # save the attached .config to linux build tree
> > make.cross ARCH=mn10300
> >
> >All warnings (new ones prefixed by >>):
> >
> > In file included from include/linux/printk.h:277:0,
> > from include/linux/kernel.h:13,
> > from include/linux/list.h:8,
> > from include/linux/kobject.h:20,
> > from include/linux/device.h:17,
> > from include/linux/dmaengine.h:20,
> > from drivers/dma/qcom/hidma.c:45:
> > drivers/dma/qcom/hidma.c: In function 'hidma_prep_dma_memcpy':
> > include/linux/dynamic_debug.h:64:16: warning: format '%zu' expects argument of type 'size_t', but argument 7 has type 'unsigned int' [-Wformat=]
> > static struct _ddebug __aligned(8) \
> > ^
> > include/linux/dynamic_debug.h:84:2: note: in expansion of macro 'DEFINE_DYNAMIC_DEBUG_METADATA'
> > DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
> > ^
> > include/linux/device.h:1171:2: note: in expansion of macro 'dynamic_dev_dbg'
> > dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
> > ^
> >>>drivers/dma/qcom/hidma.c:391:2: note: in expansion of macro 'dev_dbg'
> > dev_dbg(mdma->ddev.dev,
> > ^
> >
> >vim +/dev_dbg +391 drivers/dma/qcom/hidma.c
> >
> > 375
> > 376 mchan->allocated = 0;
> > 377 spin_unlock_irqrestore(&mchan->lock, irqflags);
> > 378 dev_dbg(mdma->ddev.dev, "freed channel for %u\n", mchan->dma_sig);
> > 379 }
> > 380
> > 381
> > 382 static struct dma_async_tx_descriptor *
> > 383 hidma_prep_dma_memcpy(struct dma_chan *dmach, dma_addr_t dma_dest,
> > 384 dma_addr_t dma_src, size_t len, unsigned long flags)
> > 385 {
> > 386 struct hidma_chan *mchan = to_hidma_chan(dmach);
> > 387 struct hidma_desc *mdesc = NULL;
> > 388 struct hidma_dev *mdma = mchan->dmadev;
> > 389 unsigned long irqflags;
> > 390
> > > 391 dev_dbg(mdma->ddev.dev,
> > 392 "memcpy: chan:%p dest:%pad src:%pad len:%zu\n", mchan,
> > 393 &dma_dest, &dma_src, len);
> > 394
>
> What am I missing?
>
> len is size_t. This page says use %zu for size_t.
>
> https://www.kernel.org/doc/Documentation/printk-formats.txt
>
>
>
> > 395 /* Get free descriptor */
> > 396 spin_lock_irqsave(&mchan->lock, irqflags);
> > 397 if (!list_empty(&mchan->free)) {
> > 398 mdesc = list_first_entry(&mchan->free, struct hidma_desc,
> > 399 node);
> >
> >---
> >0-DAY kernel test infrastructure Open Source Technology Center
> >https://lists.01.org/pipermail/kbuild-all Intel Corporation
> >
>
>
>
> --
> Sinan Kaya
> Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux
> Foundation Collaborative Project
> _______________________________________________
> kbuild-all mailing list
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