From mboxrd@z Thu Jan  1 00:00:00 1970
Content-Type: multipart/mixed; boundary="===============1939731542253573841=="
MIME-Version: 1.0
From: Biju Das <biju.das.jz@bp.renesas.com>
To: kbuild-all@lists.01.org
Subject: Re: [PATCH v5 3/3] drivers: dma: sh: Add DMAC driver for RZ/G2L SoC
Date: Thu, 29 Jul 2021 13:26:49 +0000
Message-ID: <
 <OS0PR01MB592243832A383E3AEA9E213C86EB9@OS0PR01MB5922.jpnprd01.prod.outlook.com>>
In-Reply-To: <202107291957.CdAuuHpk-lkp@intel.com>
List-Id: <oe-kbuild-all.lists.linux.dev>

--===============1939731542253573841==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable

Hi All,

Looks like there is compiler issue with nios2 cross compilation toolchain.

As per the kernel documentation %pad is the format specifier for dma_addr_t.

This toolchain does not like it. Please let me know if I am missing any thi=
ng here.

The changes I made to fix the issue reported by bot:-
-------------------
+++ b/drivers/dma/sh/rz-dmac.c
@@ -475,7 +475,7 @@ rz_dmac_prep_dma_memcpy(struct dma_chan *chan, dma_addr=
_t dest, dma_addr_t src,
        struct rz_dmac *dmac =3D to_rz_dmac(chan->device);
        struct rz_dmac_desc *desc;
 =

-       dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx len=3D=
%ld\n",
+       dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx\=
n",
                __func__, channel->index, src, dest, len);
 =

        if (list_empty(&channel->ld_free))

compilation logs:-
------------------
dasb(a)ree-du1sdd5:~/dmaengine$ COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=
=3Dgcc-10.3.0 ~/bin/make.cross ARCH=3Dnios2 =

Compiler will be installed in /data/dasb/0day
make --keep-going CONFIG_OF_ALL_DTBS=3Dy CONFIG_DTC=3Dy CROSS_COMPILE=3D/da=
ta/dasb/0day/gcc-10.3.0-nolibc/nios2-linux/bin/nios2-linux- --jobs=3D48 ARC=
H=3Dnios2
  CALL    scripts/atomic/check-atomics.sh
  CALL    scripts/checksyscalls.sh
<stdin>:1515:2: warning: #warning syscall clone3 not implemented [-Wcpp]
  CHK     include/generated/compile.h
make[1]: *** No rule to make target 'arch/nios2/boot/dts/""', needed by 'ar=
ch/nios2/boot/dts/built-in.a'.
make[1]: Target '__build' not remade because of errors.
make: *** [Makefile:1842: arch/nios2/boot/dts] Error 2
  CC      drivers/dma/sh/rz-dmac.o
In file included from ./include/linux/printk.h:456,
                 from ./include/asm-generic/bug.h:22,
                 from ./arch/nios2/include/generated/asm/bug.h:1,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/thread_info.h:13,
                 from ./include/asm-generic/current.h:5,
                 from ./arch/nios2/include/generated/asm/current.h:1,
                 from ./include/linux/sched.h:12,
                 from ./include/linux/ratelimit.h:6,
                 from ./include/linux/dev_printk.h:16,
                 from ./include/linux/device.h:15,
                 from ./include/linux/dma-mapping.h:7,
                 from drivers/dma/sh/rz-dmac.c:12:
drivers/dma/sh/rz-dmac.c: In function 'rz_dmac_prep_dma_memcpy':
drivers/dma/sh/rz-dmac.c:478:21: warning: format '%p' expects argument of t=
ype 'void *', but argument 6 has type 'dma_addr_t' {aka 'unsigned int'} [-W=
format=3D]
  478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx=
\n",
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/dynamic_debug.h:134:15: note: in definition of macro '__dyn=
amic_func_call'
  134 |   func(&id, ##__VA_ARGS__);  \
      |               ^~~~~~~~~~~
./include/linux/dynamic_debug.h:166:2: note: in expansion of macro '_dynami=
c_func_call'
  166 |  _dynamic_func_call(fmt,__dynamic_dev_dbg,   \
      |  ^~~~~~~~~~~~~~~~~~
./include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_de=
v_dbg'
  123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
      |  ^~~~~~~~~~~~~~~
./include/linux/dev_printk.h:123:23: note: in expansion of macro 'dev_fmt'
  123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
      |                       ^~~~~~~
drivers/dma/sh/rz-dmac.c:478:2: note: in expansion of macro 'dev_dbg'
  478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx=
\n",
      |  ^~~~~~~
drivers/dma/sh/rz-dmac.c:478:42: note: format string is defined here
  478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx=
\n",
      |                                         ~^
      |                                          |
      |                                          void *
      |                                         %d
In file included from ./include/linux/printk.h:456,
                 from ./include/asm-generic/bug.h:22,
                 from ./arch/nios2/include/generated/asm/bug.h:1,
                 from ./include/linux/bug.h:5,
                 from ./include/linux/thread_info.h:13,
                 from ./include/asm-generic/current.h:5,
                 from ./arch/nios2/include/generated/asm/current.h:1,
                 from ./include/linux/sched.h:12,
                 from ./include/linux/ratelimit.h:6,
                 from ./include/linux/dev_printk.h:16,
                 from ./include/linux/device.h:15,
                 from ./include/linux/dma-mapping.h:7,
                 from drivers/dma/sh/rz-dmac.c:12:
drivers/dma/sh/rz-dmac.c:478:21: warning: format '%p' expects argument of t=
ype 'void *', but argument 7 has type 'dma_addr_t' {aka 'unsigned int'} [-W=
format=3D]
  478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx=
\n",
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/dynamic_debug.h:134:15: note: in definition of macro '__dyn=
amic_func_call'
  134 |   func(&id, ##__VA_ARGS__);  \
      |               ^~~~~~~~~~~
./include/linux/dynamic_debug.h:166:2: note: in expansion of macro '_dynami=
c_func_call'
  166 |  _dynamic_func_call(fmt,__dynamic_dev_dbg,   \
      |  ^~~~~~~~~~~~~~~~~~
./include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_de=
v_dbg'
  123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
      |  ^~~~~~~~~~~~~~~
./include/linux/dev_printk.h:123:23: note: in expansion of macro 'dev_fmt'
  123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
      |                       ^~~~~~~
drivers/dma/sh/rz-dmac.c:478:2: note: in expansion of macro 'dev_dbg'
  478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx=
\n",
      |  ^~~~~~~
drivers/dma/sh/rz-dmac.c:478:51: note: format string is defined here
  478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D%pad dst=3D%pad len=3D%zx=
\n",
      |                                                  ~^
      |                                                   |
      |                                                   void *
      |                                                  %d
  CHK     kernel/kheaders_data.tar.xz
  AR      drivers/dma/sh/built-in.a
  AR      drivers/dma/built-in.a
  AR      drivers/built-in.a
make: Target '__all' not remade because of errors.

Regards,
Biju

> -----Original Message-----
> From: kernel test robot <lkp@intel.com>
> Sent: 29 July 2021 12:34
> To: Biju Das <biju.das.jz@bp.renesas.com>; Vinod Koul <vkoul@kernel.o=
rg>
> Cc: kbuild-all(a)lists.01.org; Biju Das <biju.das.jz@bp.renesas.com>;
> Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>; Chris
> Paterson <Chris.Paterson2@renesas.com>; Geert Uytterhoeven
> <geert+renesas@glider.be>; dmaengine(a)vger.kernel.org; Chris Brandt
> <Chris.Brandt@renesas.com>; linux-renesas-soc(a)vger.kernel.org
> Subject: Re: [PATCH v5 3/3] drivers: dma: sh: Add DMAC driver for RZ/G2L
> SoC
> =

> Hi Biju,
> =

> Thank you for the patch! Perhaps something to improve:
> =

> [auto build test WARNING on vkoul-dmaengine/next] [also build test WARNING
> on robh/for-next v5.14-rc3 next-20210728] [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://jpn01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit-
> scm.com%2Fdocs%2Fgit-format-
> patch&amp;data=3D04%7C01%7Cbiju.das.jz%40bp.renesas.com%7C542bfff2887f488=
c2f
> ef08d95284c66f%7C53d82571da1947e49cb4625a166a4a2a%7C0%7C0%7C63763155516672
> 5253%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6I
> k1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DTJFcD19oJIJ3tWbNwldGo4xy2aaAouJn=
opP
> yZQ2tixo%3D&amp;reserved=3D0]
> =

> url:
> https://jpn01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgithu=
b.c
> om%2F0day-ci%2Flinux%2Fcommits%2FBiju-Das%2FAdd-RZ-G2L-DMAC-
> support%2F20210729-
> 162632&amp;data=3D04%7C01%7Cbiju.das.jz%40bp.renesas.com%7C542bfff2887f48=
8c2
> fef08d95284c66f%7C53d82571da1947e49cb4625a166a4a2a%7C0%7C0%7C6376315551667
> 25253%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6
> Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3D%2Bg8o5Ec95AfQ5n39E6cJ6lnsziARX=
pVw
> g%2BRoQgBYQks%3D&amp;reserved=3D0
> base:
> https://jpn01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit.k=
ern
> el.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fvkoul%2Fdmaengine.git&amp;data
> =3D04%7C01%7Cbiju.das.jz%40bp.renesas.com%7C542bfff2887f488c2fef08d95284c=
66f
> %7C53d82571da1947e49cb4625a166a4a2a%7C0%7C0%7C637631555166725253%7CUnknown
> %7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI
> 6Mn0%3D%7C1000&amp;sdata=3DPLRxI4C7cMH0H4QS6Dv045x8zx%2BIlFeb0mV0QLwfNbQ%=
3D&
> amp;reserved=3D0 next
> config: nios2-allyesconfig (attached as .config)
> compiler: nios2-linux-gcc (GCC) 10.3.0
> reproduce (this is a W=3D1 build):
>         wget
> https://jpn01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fraw.g=
ith
> ubusercontent.com%2Fintel%2Flkp-
> tests%2Fmaster%2Fsbin%2Fmake.cross&amp;data=3D04%7C01%7Cbiju.das.jz%40bp.=
ren
> esas.com%7C542bfff2887f488c2fef08d95284c66f%7C53d82571da1947e49cb4625a166a
> 4a2a%7C0%7C0%7C637631555166725253%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw
> MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DmRW=
tzY
> YmV9%2B8br%2BnBcClZz1roSj4GAxaesZbrtMNjYw%3D&amp;reserved=3D0 -O
> ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         #
> https://jpn01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgithu=
b.c
> om%2F0day-
> ci%2Flinux%2Fcommit%2Fcfd03e1dedb6793c62ca9acb9642dd314d44ac8e&amp;data=
=3D04
> %7C01%7Cbiju.das.jz%40bp.renesas.com%7C542bfff2887f488c2fef08d95284c66f%7C
> 53d82571da1947e49cb4625a166a4a2a%7C0%7C0%7C637631555166725253%7CUnknown%7C
> TWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn
> 0%3D%7C1000&amp;sdata=3DrVtsa8DjyZ4TY2hpwlKz%2F6e3kBSubO6VM58rh8ioiNA%3D&=
amp
> ;reserved=3D0
>         git remote add linux-review
> https://jpn01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgithu=
b.c
> om%2F0day-
> ci%2Flinux&amp;data=3D04%7C01%7Cbiju.das.jz%40bp.renesas.com%7C542bfff288=
7f4
> 88c2fef08d95284c66f%7C53d82571da1947e49cb4625a166a4a2a%7C0%7C0%7C637631555
> 166735210%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB
> TiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DJb9197GDbxvSzKoZHxgDzTAXnLA=
qPL
> 8KrH%2Bp7xJHu1A%3D&amp;reserved=3D0
>         git fetch --no-tags linux-review Biju-Das/Add-RZ-G2L-DMAC-
> support/20210729-162632
>         git checkout cfd03e1dedb6793c62ca9acb9642dd314d44ac8e
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=3Dgcc-10.3.0 make.cro=
ss
> ARCH=3Dnios2
> =

> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> =

> All warnings (new ones prefixed by >>):
> =

>    In file included from include/linux/printk.h:456,
>                     from include/asm-generic/bug.h:22,
>                     from ./arch/nios2/include/generated/asm/bug.h:1,
>                     from include/linux/bug.h:5,
>                     from include/linux/thread_info.h:13,
>                     from include/asm-generic/current.h:5,
>                     from ./arch/nios2/include/generated/asm/current.h:1,
>                     from include/linux/sched.h:12,
>                     from include/linux/ratelimit.h:6,
>                     from include/linux/dev_printk.h:16,
>                     from include/linux/device.h:15,
>                     from include/linux/dma-mapping.h:7,
>                     from drivers/dma/sh/rz-dmac.c:12:
>    drivers/dma/sh/rz-dmac.c: In function 'rz_dmac_prep_dma_memcpy':
> >> drivers/dma/sh/rz-dmac.c:478:21: warning: format '%llx' expects
> >> argument of type 'long long unsigned int', but argument 6 has type
> >> 'dma_addr_t' {aka 'unsigned int'} [-Wformat=3D]
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/dynamic_debug.h:134:15: note: in definition of macro
> '__dynamic_func_call'
>      134 |   func(&id, ##__VA_ARGS__);  \
>          |               ^~~~~~~~~~~
>    include/linux/dynamic_debug.h:166:2: note: in expansion of macro
> '_dynamic_func_call'
>      166 |  _dynamic_func_call(fmt,__dynamic_dev_dbg,   \
>          |  ^~~~~~~~~~~~~~~~~~
>    include/linux/dev_printk.h:123:2: note: in expansion of macro
> 'dynamic_dev_dbg'
>      123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>          |  ^~~~~~~~~~~~~~~
>    include/linux/dev_printk.h:123:23: note: in expansion of macro
> 'dev_fmt'
>      123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>          |                       ^~~~~~~
>    drivers/dma/sh/rz-dmac.c:478:2: note: in expansion of macro 'dev_dbg'
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |  ^~~~~~~
>    drivers/dma/sh/rz-dmac.c:478:46: note: format string is defined here
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |                                           ~~~^
>          |                                              |
>          |                                              long long unsigned
> int
>          |                                           %x
>    In file included from include/linux/printk.h:456,
>                     from include/asm-generic/bug.h:22,
>                     from ./arch/nios2/include/generated/asm/bug.h:1,
>                     from include/linux/bug.h:5,
>                     from include/linux/thread_info.h:13,
>                     from include/asm-generic/current.h:5,
>                     from ./arch/nios2/include/generated/asm/current.h:1,
>                     from include/linux/sched.h:12,
>                     from include/linux/ratelimit.h:6,
>                     from include/linux/dev_printk.h:16,
>                     from include/linux/device.h:15,
>                     from include/linux/dma-mapping.h:7,
>                     from drivers/dma/sh/rz-dmac.c:12:
>    drivers/dma/sh/rz-dmac.c:478:21: warning: format '%llx' expects
> argument of type 'long long unsigned int', but argument 7 has type
> 'dma_addr_t' {aka 'unsigned int'} [-Wformat=3D]
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/dynamic_debug.h:134:15: note: in definition of macro
> '__dynamic_func_call'
>      134 |   func(&id, ##__VA_ARGS__);  \
>          |               ^~~~~~~~~~~
>    include/linux/dynamic_debug.h:166:2: note: in expansion of macro
> '_dynamic_func_call'
>      166 |  _dynamic_func_call(fmt,__dynamic_dev_dbg,   \
>          |  ^~~~~~~~~~~~~~~~~~
>    include/linux/dev_printk.h:123:2: note: in expansion of macro
> 'dynamic_dev_dbg'
>      123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>          |  ^~~~~~~~~~~~~~~
>    include/linux/dev_printk.h:123:23: note: in expansion of macro
> 'dev_fmt'
>      123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>          |                       ^~~~~~~
>    drivers/dma/sh/rz-dmac.c:478:2: note: in expansion of macro 'dev_dbg'
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |  ^~~~~~~
>    drivers/dma/sh/rz-dmac.c:478:57: note: format string is defined here
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |                                                      ~~~^
>          |                                                         |
>          |                                                         long
> long unsigned int
>          |                                                      %x
>    In file included from include/linux/printk.h:456,
>                     from include/asm-generic/bug.h:22,
>                     from ./arch/nios2/include/generated/asm/bug.h:1,
>                     from include/linux/bug.h:5,
>                     from include/linux/thread_info.h:13,
>                     from include/asm-generic/current.h:5,
>                     from ./arch/nios2/include/generated/asm/current.h:1,
>                     from include/linux/sched.h:12,
>                     from include/linux/ratelimit.h:6,
>                     from include/linux/dev_printk.h:16,
>                     from include/linux/device.h:15,
>                     from include/linux/dma-mapping.h:7,
>                     from drivers/dma/sh/rz-dmac.c:12:
> >> drivers/dma/sh/rz-dmac.c:478:21: warning: format '%ld' expects
> >> argument of type 'long int', but argument 8 has type 'size_t' {aka
> >> 'unsigned int'} [-Wformat=3D]
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/dynamic_debug.h:134:15: note: in definition of macro
> '__dynamic_func_call'
>      134 |   func(&id, ##__VA_ARGS__);  \
>          |               ^~~~~~~~~~~
>    include/linux/dynamic_debug.h:166:2: note: in expansion of macro
> '_dynamic_func_call'
>      166 |  _dynamic_func_call(fmt,__dynamic_dev_dbg,   \
>          |  ^~~~~~~~~~~~~~~~~~
>    include/linux/dev_printk.h:123:2: note: in expansion of macro
> 'dynamic_dev_dbg'
>      123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>          |  ^~~~~~~~~~~~~~~
>    include/linux/dev_printk.h:123:23: note: in expansion of macro
> 'dev_fmt'
>      123 |  dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>          |                       ^~~~~~~
>    drivers/dma/sh/rz-dmac.c:478:2: note: in expansion of macro 'dev_dbg'
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |  ^~~~~~~
>    drivers/dma/sh/rz-dmac.c:478:65: note: format string is defined here
>      478 |  dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>          |
> ~~^
>          |
> |
>          |
> long int
>          |
> %d
> =

> =

> vim +478 drivers/dma/sh/rz-dmac.c
> =

>    469
>    470	static struct dma_async_tx_descriptor *
>    471	rz_dmac_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t
> dest, dma_addr_t src,
>    472				size_t len, unsigned long flags)
>    473	{
>    474		struct rz_dmac_chan *channel =3D to_rz_dmac_chan(chan);
>    475		struct rz_dmac *dmac =3D to_rz_dmac(chan->device);
>    476		struct rz_dmac_desc *desc;
>    477
>  > 478		dev_dbg(dmac->dev, "%s channel: %d src=3D0x%llx dst=3D0x%llx
> len=3D%ld\n",
>    479			__func__, channel->index, src, dest, len);
>    480
>    481		if (list_empty(&channel->ld_free))
>    482			return NULL;
>    483
>    484		desc =3D list_first_entry(&channel->ld_free, struct
> rz_dmac_desc, node);
>    485
>    486		desc->type =3D RZ_DMAC_DESC_MEMCPY;
>    487		desc->src =3D src;
>    488		desc->dest =3D dest;
>    489		desc->len =3D len;
>    490		desc->direction =3D DMA_MEM_TO_MEM;
>    491
>    492		list_move_tail(channel->ld_free.next, &channel-
> >ld_queue);
>    493		return vchan_tx_prep(&channel->vc, &desc->vd, flags);
>    494	}
>    495
> =

> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
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--===============1939731542253573841==--