diff mbox series

clk: imx: scu: Fix compile error with module build of clk-scu.o

Message ID 208469.1604318525@turing-police (mailing list archive)
State New, archived
Headers show
Series clk: imx: scu: Fix compile error with module build of clk-scu.o | expand

Commit Message

Valdis Klētnieks Nov. 2, 2020, 12:02 p.m. UTC
commit 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 (HEAD)
Author: Dong Aisheng <aisheng.dong@nxp.com>
Date:   Wed Jul 29 16:00:10 2020 +0800

    clk: imx: scu: add two cells binding support

This missed a #include, which results in some nasty errors when
built as a module

  CC [M]  drivers/clk/imx/clk-scu.o
In file included from ./include/linux/device.h:32,
                 from ./include/linux/of_platform.h:9,
                 from drivers/clk/imx/clk-scu.c:11:
./include/linux/device/driver.h:290:1: warning: data definition has no type or storage class
 device_initcall(__driver##_init);
 ^~~~~~~~~~~~~~~
./include/linux/platform_device.h:258:2: note: in expansion of macro 'builtin_driver'
  builtin_driver(__platform_driver, platform_driver_register)
  ^~~~~~~~~~~~~~
drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro 'builtin_platform_driver'
 builtin_platform_driver(imx_clk_scu_driver);
 ^~~~~~~~~~~~~~~~~~~~~~~
./include/linux/device/driver.h:290:1: error: type defaults to 'int' in declaration of 'device_initcall' [-Werror=implicit-int]
 device_initcall(__driver##_init);
 ^~~~~~~~~~~~~~~
./include/linux/platform_device.h:258:2: note: in expansion of macro 'builtin_driver'
  builtin_driver(__platform_driver, platform_driver_register)
  ^~~~~~~~~~~~~~
drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro 'builtin_platform_driver'
 builtin_platform_driver(imx_clk_scu_driver);
 ^~~~~~~~~~~~~~~~~~~~~~~
drivers/clk/imx/clk-scu.c:545:1: warning: parameter names (without types) in function declaration
In file included from ./include/linux/device.h:32,
                 from ./include/linux/of_platform.h:9,
                 from drivers/clk/imx/clk-scu.c:11:
drivers/clk/imx/clk-scu.c:545:25: warning: 'imx_clk_scu_driver_init' defined but not used [-Wunused-function]
 builtin_platform_driver(imx_clk_scu_driver);
                         ^~~~~~~~~~~~~~~~~~
./include/linux/device/driver.h:286:19: note: in definition of macro 'builtin_driver'
 static int __init __driver##_init(void) \
                   ^~~~~~~~
drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro 'builtin_platform_driver'
 builtin_platform_driver(imx_clk_scu_driver);
 ^~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
make[3]: *** [scripts/Makefile.build:283: drivers/clk/imx/clk-scu.o] Error 1

Fix by providing the include.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>

Comments

Randy Dunlap Nov. 2, 2020, 5:15 p.m. UTC | #1
On 11/2/20 4:02 AM, Valdis Klētnieks wrote:
> commit 77d8f3068c63ee0983f0b5ba3207d3f7cce11be4 (HEAD)
> Author: Dong Aisheng <aisheng.dong@nxp.com>
> Date:   Wed Jul 29 16:00:10 2020 +0800
> 
>     clk: imx: scu: add two cells binding support
> 
> This missed a #include, which results in some nasty errors when
> built as a module
> 
>   CC [M]  drivers/clk/imx/clk-scu.o
> In file included from ./include/linux/device.h:32,
>                  from ./include/linux/of_platform.h:9,
>                  from drivers/clk/imx/clk-scu.c:11:
> ./include/linux/device/driver.h:290:1: warning: data definition has no type or storage class
>  device_initcall(__driver##_init);
>  ^~~~~~~~~~~~~~~
> ./include/linux/platform_device.h:258:2: note: in expansion of macro 'builtin_driver'
>   builtin_driver(__platform_driver, platform_driver_register)
>   ^~~~~~~~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro 'builtin_platform_driver'
>  builtin_platform_driver(imx_clk_scu_driver);
>  ^~~~~~~~~~~~~~~~~~~~~~~
> ./include/linux/device/driver.h:290:1: error: type defaults to 'int' in declaration of 'device_initcall' [-Werror=implicit-int]
>  device_initcall(__driver##_init);
>  ^~~~~~~~~~~~~~~
> ./include/linux/platform_device.h:258:2: note: in expansion of macro 'builtin_driver'
>   builtin_driver(__platform_driver, platform_driver_register)
>   ^~~~~~~~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro 'builtin_platform_driver'
>  builtin_platform_driver(imx_clk_scu_driver);
>  ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: warning: parameter names (without types) in function declaration
> In file included from ./include/linux/device.h:32,
>                  from ./include/linux/of_platform.h:9,
>                  from drivers/clk/imx/clk-scu.c:11:
> drivers/clk/imx/clk-scu.c:545:25: warning: 'imx_clk_scu_driver_init' defined but not used [-Wunused-function]
>  builtin_platform_driver(imx_clk_scu_driver);
>                          ^~~~~~~~~~~~~~~~~~
> ./include/linux/device/driver.h:286:19: note: in definition of macro 'builtin_driver'
>  static int __init __driver##_init(void) \
>                    ^~~~~~~~
> drivers/clk/imx/clk-scu.c:545:1: note: in expansion of macro 'builtin_platform_driver'
>  builtin_platform_driver(imx_clk_scu_driver);
>  ^~~~~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
> make[3]: *** [scripts/Makefile.build:283: drivers/clk/imx/clk-scu.o] Error 1
> 
> Fix by providing the include.


also
Reported-by: kernel test robot <lkp@intel.com>

However, this driver does not directly use <linux/module.h>.
platform_device.h #includes <linux/device.h>, which is where the
problem lies:

<linux/device.h> uses macros that are provided by <linux/module.h>
so <linux/device.h> should #include <linux/module.h>.

and that fixes this commit:

commit 4c002c978b7f2f2306d53de051c054504af920a9
Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date:   Mon Dec 9 20:33:03 2019 +0100

    device.h: move 'struct driver' stuff out to device/driver.h

> 
> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
> 
> diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
> index 229a290ca5b6..15d382f6f9f8 100644
> --- a/drivers/clk/imx/clk-scu.c
> +++ b/drivers/clk/imx/clk-scu.c
> @@ -8,6 +8,7 @@
>  #include <linux/arm-smccc.h>
>  #include <linux/clk-provider.h>
>  #include <linux/err.h>
> +#include <linux/module.h>
>  #include <linux/of_platform.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_domain.h>
> 
>
Valdis Klētnieks Nov. 2, 2020, 9:01 p.m. UTC | #2
On Mon, 02 Nov 2020 09:15:20 -0800, Randy Dunlap said:

> also
> Reported-by: kernel test robot <lkp@intel.com>
>
> However, this driver does not directly use <linux/module.h>.

Just my luck - I looked at 3 or 4 other things that include of_platform.h
and they all *did* include module.h.

> platform_device.h #includes <linux/device.h>, which is where the
> problem lies:
>
> <linux/device.h> uses macros that are provided by <linux/module.h>
> so <linux/device.h> should #include <linux/module.h>.
>
> and that fixes this commit:
>
> commit 4c002c978b7f2f2306d53de051c054504af920a9
> Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Date:   Mon Dec 9 20:33:03 2019 +0100
>
>     device.h: move 'struct driver' stuff out to device/driver.h

OK.. who's going to do that? Me, or Randy, or Greg?
Randy Dunlap Nov. 2, 2020, 9:31 p.m. UTC | #3
On 11/2/20 1:01 PM, Valdis Klētnieks wrote:
> On Mon, 02 Nov 2020 09:15:20 -0800, Randy Dunlap said:
> 
>> also
>> Reported-by: kernel test robot <lkp@intel.com>
>>
>> However, this driver does not directly use <linux/module.h>.
> 
> Just my luck - I looked at 3 or 4 other things that include of_platform.h
> and they all *did* include module.h.
> 
>> platform_device.h #includes <linux/device.h>, which is where the
>> problem lies:
>>
>> <linux/device.h> uses macros that are provided by <linux/module.h>
>> so <linux/device.h> should #include <linux/module.h>.
>>
>> and that fixes this commit:
>>
>> commit 4c002c978b7f2f2306d53de051c054504af920a9
>> Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>> Date:   Mon Dec 9 20:33:03 2019 +0100
>>
>>     device.h: move 'struct driver' stuff out to device/driver.h
> 
> OK.. who's going to do that? Me, or Randy, or Greg?

You could go ahead... I began on it yesterday but didn't finish
testing, although I did see the same build error that the 0day
bot reported, so I don't know what it's going to take to fix that.
Shawn Guo Nov. 2, 2020, 11:52 p.m. UTC | #4
On Mon, Nov 02, 2020 at 01:31:59PM -0800, Randy Dunlap wrote:
> On 11/2/20 1:01 PM, Valdis Klētnieks wrote:
> > On Mon, 02 Nov 2020 09:15:20 -0800, Randy Dunlap said:
> > 
> >> also
> >> Reported-by: kernel test robot <lkp@intel.com>
> >>
> >> However, this driver does not directly use <linux/module.h>.
> > 
> > Just my luck - I looked at 3 or 4 other things that include of_platform.h
> > and they all *did* include module.h.
> > 
> >> platform_device.h #includes <linux/device.h>, which is where the
> >> problem lies:
> >>
> >> <linux/device.h> uses macros that are provided by <linux/module.h>
> >> so <linux/device.h> should #include <linux/module.h>.
> >>
> >> and that fixes this commit:
> >>
> >> commit 4c002c978b7f2f2306d53de051c054504af920a9
> >> Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> >> Date:   Mon Dec 9 20:33:03 2019 +0100
> >>
> >>     device.h: move 'struct driver' stuff out to device/driver.h
> > 
> > OK.. who's going to do that? Me, or Randy, or Greg?
> 
> You could go ahead... I began on it yesterday but didn't finish
> testing, although I did see the same build error that the 0day
> bot reported, so I don't know what it's going to take to fix that.

It's a driver problem which is being addressed by Dong's patch[1].

Shawn

[1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20201030153733.30160-1-aisheng.dong@nxp.com/
Randy Dunlap Nov. 2, 2020, 11:59 p.m. UTC | #5
On 11/2/20 3:52 PM, Shawn Guo wrote:
> On Mon, Nov 02, 2020 at 01:31:59PM -0800, Randy Dunlap wrote:
>> On 11/2/20 1:01 PM, Valdis Klētnieks wrote:
>>> On Mon, 02 Nov 2020 09:15:20 -0800, Randy Dunlap said:
>>>
>>>> also
>>>> Reported-by: kernel test robot <lkp@intel.com>
>>>>
>>>> However, this driver does not directly use <linux/module.h>.
>>>
>>> Just my luck - I looked at 3 or 4 other things that include of_platform.h
>>> and they all *did* include module.h.
>>>
>>>> platform_device.h #includes <linux/device.h>, which is where the
>>>> problem lies:
>>>>
>>>> <linux/device.h> uses macros that are provided by <linux/module.h>
>>>> so <linux/device.h> should #include <linux/module.h>.
>>>>
>>>> and that fixes this commit:
>>>>
>>>> commit 4c002c978b7f2f2306d53de051c054504af920a9
>>>> Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>>>> Date:   Mon Dec 9 20:33:03 2019 +0100
>>>>
>>>>     device.h: move 'struct driver' stuff out to device/driver.h
>>>
>>> OK.. who's going to do that? Me, or Randy, or Greg?
>>
>> You could go ahead... I began on it yesterday but didn't finish
>> testing, although I did see the same build error that the 0day
>> bot reported, so I don't know what it's going to take to fix that.
> 
> It's a driver problem which is being addressed by Dong's patch[1].
> 
> Shawn
> 
> [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20201030153733.30160-1-aisheng.dong@nxp.com/
> 

Thanks for the info & link.
Valdis Klētnieks Nov. 3, 2020, 1:45 a.m. UTC | #6
On Tue, 03 Nov 2020 07:52:19 +0800, Shawn Guo said:

> It's a driver problem which is being addressed by Dong's patch[1].
>
> Shawn
>
> [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20201030153733.30160-1-aisheng.dong@nxp.com/

OK, We'll fix it that way then.
diff mbox series

Patch

diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
index 229a290ca5b6..15d382f6f9f8 100644
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -8,6 +8,7 @@ 
 #include <linux/arm-smccc.h>
 #include <linux/clk-provider.h>
 #include <linux/err.h>
+#include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>