On Sat, 07 Nov 2020, Sam Ravnborg wrote:
> Hi Lee,
>
> On Fri, Nov 06, 2020 at 09:49:40PM +0000, Lee Jones wrote:
> > Unfortunately, a suitable one didn't already exist.
> >
> > Fixes the following W=1 kernel build warning(s):
> >
> > drivers/gpu/drm/radeon/radeon_device.c:637:6: warning: no previous prototype for ‘radeon_device_is_virtual’ [-Wmissing-prototypes]
> > 637 | bool radeon_device_is_virtual(void)
> > | ^~~~~~~~~~~~~~~~~~~~~~~~
> >
> > Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> > Cc: "Christian König" <christian.koenig@xxxxxxx>
> > Cc: David Airlie <airlied@xxxxxxxx>
> > Cc: Daniel Vetter <daniel@xxxxxxxx>
> > Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
> > Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > Cc: linux-media@xxxxxxxxxxxxxxx
> > Cc: linaro-mm-sig@xxxxxxxxxxxxxxxx
> > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> > ---
> > drivers/gpu/drm/radeon/radeon_device.c | 1 +
> > drivers/gpu/drm/radeon/radeon_device.h | 32 ++++++++++++++++++++++++++
> > drivers/gpu/drm/radeon/radeon_drv.c | 3 +--
> > 3 files changed, 34 insertions(+), 2 deletions(-)
> > create mode 100644 drivers/gpu/drm/radeon/radeon_device.h
>
> Other public functions in radeon_device.c have their prototype in
> radeon.h - for example radeon_is_px()
>
> Add radeon_device_is_virtual() there so we avoiid this new header.
Oh yes, I remember why this wasn't a suitable solution now:
The macro "radeon_init" in radeon.h clashes with the init function of
the same name in radeon_drv.c:
In file included from drivers/gpu/drm/radeon/radeon_drv.c:53:
drivers/gpu/drm/radeon/radeon_drv.c:620:31: error: expected identifier or ‘(’ before ‘void’
620 | static int __init radeon_init(void)
| ^~~~
drivers/gpu/drm/radeon/radeon.h:2705:28: note: in definition of macro ‘radeon_init’
2705 | #define radeon_init(rdev) (rdev)->asic->init((rdev))
| ^~~~
In file included from drivers/gpu/drm/radeon/radeon_drv.c:35:
drivers/gpu/drm/radeon/radeon_drv.c: In function ‘__inittest’:
drivers/gpu/drm/radeon/radeon_drv.c:653:13: error: ‘radeon_init’ undeclared (first use in this function); did you mean ‘radeon_exit’?
653 | module_init(radeon_init);
| ^~~~~~~~~~~
include/linux/module.h:133:11: note: in definition of macro ‘module_init’
133 | { return initfn; } | ^~~~~~
drivers/gpu/drm/radeon/radeon_drv.c:653:13: note: each undeclared identifier is reported only once for each function it appears in
653 | module_init(radeon_init);
| ^~~~~~~~~~~
include/linux/module.h:133:11: note: in definition of macro ‘module_init’
133 | { return initfn; } | ^~~~~~
In file included from include/linux/compiler_types.h:65,
from <command-line>:
drivers/gpu/drm/radeon/radeon_drv.c: At top level:
drivers/gpu/drm/radeon/radeon_drv.c:653:13: error: ‘radeon_init’ undeclared here (not in a function); did you mean ‘radeon_exit’?
653 | module_init(radeon_init);
| ^~~~~~~~~~~
include/linux/compiler_attributes.h:109:65: note: in definition of macro ‘__copy’
109 | # define __copy(symbol) __attribute__((__copy__(symbol)))
| ^~~~~~
drivers/gpu/drm/radeon/radeon_drv.c:653:1: note: in expansion of macro ‘module_init’
653 | module_init(radeon_init);
| ^~~~~~~~~~~
In file included from drivers/gpu/drm/radeon/radeon_drv.c:35:
include/linux/module.h:134:6: error: ‘init_module’ aliased to undefined symbol ‘radeon_init’
134 | int init_module(void) __copy(initfn) __attribute__((alias(#initfn)));
| ^~~~~~~~~~~
drivers/gpu/drm/radeon/radeon_drv.c:653:1: note: in expansion of macro ‘module_init’
653 | module_init(radeon_init);
| ^~~~~~~~~~~
How would you like me to move forward?
--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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