* [PATCH] media: i2c: thp7312: select CONFIG_FW_LOADER
@ 2024-01-03 15:58 Arnd Bergmann
2024-01-03 17:48 ` Laurent Pinchart
0 siblings, 1 reply; 4+ messages in thread
From: Arnd Bergmann @ 2024-01-03 15:58 UTC (permalink / raw)
To: Mauro Carvalho Chehab, Laurent Pinchart, Paul Elder, Hans Verkuil,
Sakari Ailus
Cc: Arnd Bergmann, Hans de Goede, Tomi Valkeinen, Alain Volmat,
Mehdi Djait, linux-media, linux-kernel
From: Arnd Bergmann <arnd@arndb.de>
The recently added driver uses the firmware loader mechanism but causes
a link failure when that is in a loadable module while thp7312 itself
is built-in:
arm-linux-gnueabi-ld: drivers/media/i2c/thp7312.o: in function `thp7312_probe':
thp7312.c:(.text+0x4164): undefined reference to `firmware_upload_register'
Select the required Kconfig symbol. Note that the driver specifically
needs the firmware upload interface that is controlled by CONFIG_FW_UPLOAD,
but there is no link failure when that is disabled because the interfaces
are stubbed out here.
Fixes: 7a52ab415b43 ("media: i2c: Add driver for THine THP7312")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/media/i2c/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 78a87331686e..4c3435921f19 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -674,6 +674,7 @@ menu "Camera ISPs"
config VIDEO_THP7312
tristate "THine THP7312 support"
depends on I2C
+ select FW_LOADER
select MEDIA_CONTROLLER
select V4L2_CCI_I2C
select V4L2_FWNODE
--
2.39.2
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] media: i2c: thp7312: select CONFIG_FW_LOADER
2024-01-03 15:58 [PATCH] media: i2c: thp7312: select CONFIG_FW_LOADER Arnd Bergmann
@ 2024-01-03 17:48 ` Laurent Pinchart
2024-01-03 20:06 ` Randy Dunlap
0 siblings, 1 reply; 4+ messages in thread
From: Laurent Pinchart @ 2024-01-03 17:48 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Mauro Carvalho Chehab, Paul Elder, Hans Verkuil, Sakari Ailus,
Arnd Bergmann, Hans de Goede, Tomi Valkeinen, Alain Volmat,
Mehdi Djait, linux-media, linux-kernel
Hi Arnd,
Thank you for the patch.
On Wed, Jan 03, 2024 at 04:58:05PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> The recently added driver uses the firmware loader mechanism but causes
> a link failure when that is in a loadable module while thp7312 itself
> is built-in:
>
> arm-linux-gnueabi-ld: drivers/media/i2c/thp7312.o: in function `thp7312_probe':
> thp7312.c:(.text+0x4164): undefined reference to `firmware_upload_register'
>
> Select the required Kconfig symbol. Note that the driver specifically
> needs the firmware upload interface that is controlled by CONFIG_FW_UPLOAD,
> but there is no link failure when that is disabled because the interfaces
> are stubbed out here.
>
> Fixes: 7a52ab415b43 ("media: i2c: Add driver for THine THP7312")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
I've posted a similar fix yesterday, see
https://lore.kernel.org/linux-media/20240102074518.24968-1-laurent.pinchart@ideasonboard.com
What approach do you think is best ?
> ---
> drivers/media/i2c/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 78a87331686e..4c3435921f19 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -674,6 +674,7 @@ menu "Camera ISPs"
> config VIDEO_THP7312
> tristate "THine THP7312 support"
> depends on I2C
> + select FW_LOADER
> select MEDIA_CONTROLLER
> select V4L2_CCI_I2C
> select V4L2_FWNODE
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] media: i2c: thp7312: select CONFIG_FW_LOADER
2024-01-03 17:48 ` Laurent Pinchart
@ 2024-01-03 20:06 ` Randy Dunlap
2024-01-03 21:07 ` Laurent Pinchart
0 siblings, 1 reply; 4+ messages in thread
From: Randy Dunlap @ 2024-01-03 20:06 UTC (permalink / raw)
To: Laurent Pinchart, Arnd Bergmann
Cc: Mauro Carvalho Chehab, Paul Elder, Hans Verkuil, Sakari Ailus,
Arnd Bergmann, Hans de Goede, Tomi Valkeinen, Alain Volmat,
Mehdi Djait, linux-media, linux-kernel
On 1/3/24 09:48, Laurent Pinchart wrote:
> Hi Arnd,
>
> Thank you for the patch.
>
> On Wed, Jan 03, 2024 at 04:58:05PM +0100, Arnd Bergmann wrote:
>> From: Arnd Bergmann <arnd@arndb.de>
>>
>> The recently added driver uses the firmware loader mechanism but causes
>> a link failure when that is in a loadable module while thp7312 itself
>> is built-in:
>>
>> arm-linux-gnueabi-ld: drivers/media/i2c/thp7312.o: in function `thp7312_probe':
>> thp7312.c:(.text+0x4164): undefined reference to `firmware_upload_register'
>>
>> Select the required Kconfig symbol. Note that the driver specifically
>> needs the firmware upload interface that is controlled by CONFIG_FW_UPLOAD,
>> but there is no link failure when that is disabled because the interfaces
>> are stubbed out here.
>>
>> Fixes: 7a52ab415b43 ("media: i2c: Add driver for THine THP7312")
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
> I've posted a similar fix yesterday, see
> https://lore.kernel.org/linux-media/20240102074518.24968-1-laurent.pinchart@ideasonboard.com
>
> What approach do you think is best ?
By far the dominant use of FW_LOADER is to select it instead of depend on it,
so I prefer Arnd's patch.
>
>> ---
>> drivers/media/i2c/Kconfig | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
>> index 78a87331686e..4c3435921f19 100644
>> --- a/drivers/media/i2c/Kconfig
>> +++ b/drivers/media/i2c/Kconfig
>> @@ -674,6 +674,7 @@ menu "Camera ISPs"
>> config VIDEO_THP7312
>> tristate "THine THP7312 support"
>> depends on I2C
>> + select FW_LOADER
>> select MEDIA_CONTROLLER
>> select V4L2_CCI_I2C
>> select V4L2_FWNODE
>
--
#Randy
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] media: i2c: thp7312: select CONFIG_FW_LOADER
2024-01-03 20:06 ` Randy Dunlap
@ 2024-01-03 21:07 ` Laurent Pinchart
0 siblings, 0 replies; 4+ messages in thread
From: Laurent Pinchart @ 2024-01-03 21:07 UTC (permalink / raw)
To: Randy Dunlap
Cc: Arnd Bergmann, Mauro Carvalho Chehab, Paul Elder, Hans Verkuil,
Sakari Ailus, Arnd Bergmann, Hans de Goede, Tomi Valkeinen,
Alain Volmat, Mehdi Djait, linux-media, linux-kernel
On Wed, Jan 03, 2024 at 12:06:33PM -0800, Randy Dunlap wrote:
> On 1/3/24 09:48, Laurent Pinchart wrote:
> > On Wed, Jan 03, 2024 at 04:58:05PM +0100, Arnd Bergmann wrote:
> >> From: Arnd Bergmann <arnd@arndb.de>
> >>
> >> The recently added driver uses the firmware loader mechanism but causes
> >> a link failure when that is in a loadable module while thp7312 itself
> >> is built-in:
> >>
> >> arm-linux-gnueabi-ld: drivers/media/i2c/thp7312.o: in function `thp7312_probe':
> >> thp7312.c:(.text+0x4164): undefined reference to `firmware_upload_register'
> >>
> >> Select the required Kconfig symbol. Note that the driver specifically
> >> needs the firmware upload interface that is controlled by CONFIG_FW_UPLOAD,
> >> but there is no link failure when that is disabled because the interfaces
> >> are stubbed out here.
> >>
> >> Fixes: 7a52ab415b43 ("media: i2c: Add driver for THine THP7312")
> >> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> >
> > I've posted a similar fix yesterday, see
> > https://lore.kernel.org/linux-media/20240102074518.24968-1-laurent.pinchart@ideasonboard.com
> >
> > What approach do you think is best ?
>
> By far the dominant use of FW_LOADER is to select it instead of depend on it,
> so I prefer Arnd's patch.
The alternative could save space, but I expect that to be an uncommon
use case, as FW_LOADER will likely be selected for other reasons anyway.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> >> ---
> >> drivers/media/i2c/Kconfig | 1 +
> >> 1 file changed, 1 insertion(+)
> >>
> >> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> >> index 78a87331686e..4c3435921f19 100644
> >> --- a/drivers/media/i2c/Kconfig
> >> +++ b/drivers/media/i2c/Kconfig
> >> @@ -674,6 +674,7 @@ menu "Camera ISPs"
> >> config VIDEO_THP7312
> >> tristate "THine THP7312 support"
> >> depends on I2C
> >> + select FW_LOADER
> >> select MEDIA_CONTROLLER
> >> select V4L2_CCI_I2C
> >> select V4L2_FWNODE
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 4+ messages in thread
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2024-01-03 15:58 [PATCH] media: i2c: thp7312: select CONFIG_FW_LOADER Arnd Bergmann
2024-01-03 17:48 ` Laurent Pinchart
2024-01-03 20:06 ` Randy Dunlap
2024-01-03 21:07 ` Laurent Pinchart
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