diff mbox series

drm/amd/display: fix undefined struct member reference

Message ID 20191210203101.2663341-1-arnd@arndb.de (mailing list archive)
State New, archived
Headers show
Series drm/amd/display: fix undefined struct member reference | expand

Commit Message

Arnd Bergmann Dec. 10, 2019, 8:30 p.m. UTC
An initialization was added for two optional struct members.  One of
these is always present in the dcn20_resource file, but the other one
depends on CONFIG_DRM_AMD_DC_DSC_SUPPORT and causes a build failure if
that is missing:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:926:14: error: excess elements in struct initializer [-Werror]
   .num_dsc = 5,

Add another #ifdef around the assignment.

Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc within NV14's resource caps")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Liu, Zhan Dec. 10, 2019, 8:54 p.m. UTC | #1
> -----Original Message-----
> From: Arnd Bergmann <arnd@arndb.de>
> Sent: 2019/December/10, Tuesday 3:31 PM
> To: Wentland, Harry <Harry.Wentland@amd.com>; Li, Sun peng (Leo)
> <Sunpeng.Li@amd.com>; Deucher, Alexander
> <Alexander.Deucher@amd.com>; Koenig, Christian
> <Christian.Koenig@amd.com>; Zhou, David(ChunMing)
> <David1.Zhou@amd.com>; David Airlie <airlied@linux.ie>; Daniel Vetter
> <daniel@ffwll.ch>; Liu, Zhan <Zhan.Liu@amd.com>
> Cc: Arnd Bergmann <arnd@arndb.de>; Laktyushkin, Dmytro
> <Dmytro.Laktyushkin@amd.com>; Lakha, Bhawanpreet
> <Bhawanpreet.Lakha@amd.com>; Lei, Jun <Jun.Lei@amd.com>; Liu,
> Charlene <Charlene.Liu@amd.com>; Yang, Eric <Eric.Yang2@amd.com>;
> Cornij, Nikola <Nikola.Cornij@amd.com>; amd-gfx@lists.freedesktop.org;
> dri-devel@lists.freedesktop.org; linux-kernel@vger.kernel.org
> Subject: [PATCH] drm/amd/display: fix undefined struct member reference
> 
> An initialization was added for two optional struct members.  One of these is
> always present in the dcn20_resource file, but the other one depends on
> CONFIG_DRM_AMD_DC_DSC_SUPPORT and causes a build failure if that is
> missing:
> 
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:926:1
> 4: error: excess elements in struct initializer [-Werror]
>    .num_dsc = 5,
> 
> Add another #ifdef around the assignment.
> 
> Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc
> within NV14's resource caps")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Thank you for catching that 
Kazlauskas, Nicholas Dec. 10, 2019, 8:55 p.m. UTC | #2
On 2019-12-10 3:54 p.m., Liu, Zhan wrote:
> 
> 
>> -----Original Message-----
>> From: Arnd Bergmann <arnd@arndb.de>
>> Sent: 2019/December/10, Tuesday 3:31 PM
>> To: Wentland, Harry <Harry.Wentland@amd.com>; Li, Sun peng (Leo)
>> <Sunpeng.Li@amd.com>; Deucher, Alexander
>> <Alexander.Deucher@amd.com>; Koenig, Christian
>> <Christian.Koenig@amd.com>; Zhou, David(ChunMing)
>> <David1.Zhou@amd.com>; David Airlie <airlied@linux.ie>; Daniel Vetter
>> <daniel@ffwll.ch>; Liu, Zhan <Zhan.Liu@amd.com>
>> Cc: Arnd Bergmann <arnd@arndb.de>; Laktyushkin, Dmytro
>> <Dmytro.Laktyushkin@amd.com>; Lakha, Bhawanpreet
>> <Bhawanpreet.Lakha@amd.com>; Lei, Jun <Jun.Lei@amd.com>; Liu,
>> Charlene <Charlene.Liu@amd.com>; Yang, Eric <Eric.Yang2@amd.com>;
>> Cornij, Nikola <Nikola.Cornij@amd.com>; amd-gfx@lists.freedesktop.org;
>> dri-devel@lists.freedesktop.org; linux-kernel@vger.kernel.org
>> Subject: [PATCH] drm/amd/display: fix undefined struct member reference
>>
>> An initialization was added for two optional struct members.  One of these is
>> always present in the dcn20_resource file, but the other one depends on
>> CONFIG_DRM_AMD_DC_DSC_SUPPORT and causes a build failure if that is
>> missing:
>>
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:926:1
>> 4: error: excess elements in struct initializer [-Werror]
>>     .num_dsc = 5,
>>
>> Add another #ifdef around the assignment.
>>
>> Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc
>> within NV14's resource caps")
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> 
> Thank you for catching that 
Arnd Bergmann Dec. 10, 2019, 9:39 p.m. UTC | #3
On Tue, Dec 10, 2019 at 9:56 PM Kazlauskas, Nicholas
<nicholas.kazlauskas@amd.com> wrote:
> On 2019-12-10 3:54 p.m., Liu, Zhan wrote:

> >>
> >> Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc
> >> within NV14's resource caps")
> >> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> >
> > Thank you for catching that On my side I kept that flag enabled all the time, so I didn't realize there was a warning hidden here.
> >
> > Reviewed-by: Zhan Liu <zhan.liu@amd.com>
>
> What tree is this reported on?

This is plain linux-5.5-rc1.

> We dropped this flag whenever building DCN. Sounds like we're missing a
> patch if you're getting this.
>
> So this is a NAK from me for going into amd-staging-drm-next at least.

Fair enough, please revert c3d03c5a196f ("drm/amd/display: Include
num_vmid and num_dsc within NV14's resource caps") for 5.5-rc2 then.

      Arnd
Alex Deucher Dec. 10, 2019, 9:43 p.m. UTC | #4
> -----Original Message-----
> From: Kazlauskas, Nicholas <Nicholas.Kazlauskas@amd.com>
> Sent: Tuesday, December 10, 2019 3:56 PM
> To: Liu, Zhan <Zhan.Liu@amd.com>; Arnd Bergmann <arnd@arndb.de>;
> Wentland, Harry <Harry.Wentland@amd.com>; Li, Sun peng (Leo)
> <Sunpeng.Li@amd.com>; Deucher, Alexander
> <Alexander.Deucher@amd.com>; Koenig, Christian
> <Christian.Koenig@amd.com>; Zhou, David(ChunMing)
> <David1.Zhou@amd.com>; David Airlie <airlied@linux.ie>; Daniel Vetter
> <daniel@ffwll.ch>
> Cc: Liu, Charlene <Charlene.Liu@amd.com>; Yang, Eric
> <Eric.Yang2@amd.com>; linux-kernel@vger.kernel.org; amd-
> gfx@lists.freedesktop.org; Cornij, Nikola <Nikola.Cornij@amd.com>;
> Laktyushkin, Dmytro <Dmytro.Laktyushkin@amd.com>; dri-
> devel@lists.freedesktop.org; Lei, Jun <Jun.Lei@amd.com>; Lakha,
> Bhawanpreet <Bhawanpreet.Lakha@amd.com>
> Subject: Re: [PATCH] drm/amd/display: fix undefined struct member
> reference
> 
> On 2019-12-10 3:54 p.m., Liu, Zhan wrote:
> >
> >
> >> -----Original Message-----
> >> From: Arnd Bergmann <arnd@arndb.de>
> >> Sent: 2019/December/10, Tuesday 3:31 PM
> >> To: Wentland, Harry <Harry.Wentland@amd.com>; Li, Sun peng (Leo)
> >> <Sunpeng.Li@amd.com>; Deucher, Alexander
> <Alexander.Deucher@amd.com>;
> >> Koenig, Christian <Christian.Koenig@amd.com>; Zhou, David(ChunMing)
> >> <David1.Zhou@amd.com>; David Airlie <airlied@linux.ie>; Daniel Vetter
> >> <daniel@ffwll.ch>; Liu, Zhan <Zhan.Liu@amd.com>
> >> Cc: Arnd Bergmann <arnd@arndb.de>; Laktyushkin, Dmytro
> >> <Dmytro.Laktyushkin@amd.com>; Lakha, Bhawanpreet
> >> <Bhawanpreet.Lakha@amd.com>; Lei, Jun <Jun.Lei@amd.com>; Liu,
> >> Charlene <Charlene.Liu@amd.com>; Yang, Eric <Eric.Yang2@amd.com>;
> >> Cornij, Nikola <Nikola.Cornij@amd.com>;
> >> amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org;
> >> linux-kernel@vger.kernel.org
> >> Subject: [PATCH] drm/amd/display: fix undefined struct member
> >> reference
> >>
> >> An initialization was added for two optional struct members.  One of
> >> these is always present in the dcn20_resource file, but the other one
> >> depends on CONFIG_DRM_AMD_DC_DSC_SUPPORT and causes a build
> failure
> >> if that is
> >> missing:
> >>
> >>
> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:926:1
> >> 4: error: excess elements in struct initializer [-Werror]
> >>     .num_dsc = 5,
> >>
> >> Add another #ifdef around the assignment.
> >>
> >> Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc
> >> within NV14's resource caps")
> >> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> >
> > Thank you for catching that 
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index faab89d1e694..fdf93e6edf43 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -923,7 +923,9 @@  static const struct resource_caps res_cap_nv14 = {
 		.num_dwb = 1,
 		.num_ddc = 5,
 		.num_vmid = 16,
+#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
 		.num_dsc = 5,
+#endif
 };
 
 static const struct dc_debug_options debug_defaults_drv = {