Re: [PATCH] amdgpu/dc: Add missing cast in dce_clock_set_min_clocks_state()

[Matthias Kaehlcke]

El Fri, Feb 09, 2018 at 04:55:57PM -0500 Harry Wentland ha dit:

> On 2018-02-09 04:28 PM, Matthias Kaehlcke wrote:
> > dce_clock_set_min_clocks_state() assigns (intentionally) a value of type
> > 'enum dm_pp_clocks_state' to a variable of type 'enum dm_pp_power_level'
> > without an explicit cast. This causes clang to raise the following
> > warning:
> > 
> > drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_clocks.c:308:4: error:
> >   implicit conversion from enumeration type 'enum dm_pp_clocks_state'
> >   to different enumeration type 'enum dm_pp_power_level' 
> > [-Werror,-Wenum-conversion]
> > clocks_state };
> > 
> > Make the cast explicit.
> > 
> > Signed-off-by: Matthias Kaehlcke 
> > ---
> >  drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c 
> > b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
> > index 9e98a5f39a6d..db3ceb283255 100644
> > --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
> > +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
> > @@ -304,7 +304,8 @@ static bool dce_clock_set_min_clocks_state(
> > enum dm_pp_clocks_state clocks_state)
> >  {
> > struct dm_pp_power_level_change_request level_change_req = {
> > -   clocks_state };
> > +   .power_level = (enum dm_pp_power_level)clocks_state
> 
> Thanks for spotting this. Looks like both enums are exactly the same so no 
> need to keep both. I sent a patch to remove the dm_pp_power_level enum to 
> amd-gfx and CC'd you on it.

Even better, thanks!
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Re: [PATCH] amdgpu/dc: Add missing cast in dce_clock_set_min_clocks_state()

[Harry Wentland]

On 2018-02-09 04:28 PM, Matthias Kaehlcke wrote:
> dce_clock_set_min_clocks_state() assigns (intentionally) a value of type
> 'enum dm_pp_clocks_state' to a variable of type 'enum dm_pp_power_level'
> without an explicit cast. This causes clang to raise the following
> warning:
> 
> drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_clocks.c:308:4: error:
>   implicit conversion from enumeration type 'enum dm_pp_clocks_state'
>   to different enumeration type 'enum dm_pp_power_level' 
> [-Werror,-Wenum-conversion]
> clocks_state };
> 
> Make the cast explicit.
> 
> Signed-off-by: Matthias Kaehlcke 
> ---
>  drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c 
> b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
> index 9e98a5f39a6d..db3ceb283255 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
> +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
> @@ -304,7 +304,8 @@ static bool dce_clock_set_min_clocks_state(
>   enum dm_pp_clocks_state clocks_state)
>  {
>   struct dm_pp_power_level_change_request level_change_req = {
> - clocks_state };
> + .power_level = (enum dm_pp_power_level)clocks_state

Thanks for spotting this. Looks like both enums are exactly the same so no need 
to keep both. I sent a patch to remove the dm_pp_power_level enum to amd-gfx 
and CC'd you on it.

Harry

> + };
>  
>   if (clocks_state > clk->max_clks_state) {
>   /*Requested state exceeds max supported state.*/
> 
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[PATCH] amdgpu/dc: Add missing cast in dce_clock_set_min_clocks_state()

[Matthias Kaehlcke]

dce_clock_set_min_clocks_state() assigns (intentionally) a value of type
'enum dm_pp_clocks_state' to a variable of type 'enum dm_pp_power_level'
without an explicit cast. This causes clang to raise the following
warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_clocks.c:308:4: error:
  implicit conversion from enumeration type 'enum dm_pp_clocks_state'
  to different enumeration type 'enum dm_pp_power_level' 
[-Werror,-Wenum-conversion]
clocks_state };

Make the cast explicit.

Signed-off-by: Matthias Kaehlcke 
---
 drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c 
b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
index 9e98a5f39a6d..db3ceb283255 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
@@ -304,7 +304,8 @@ static bool dce_clock_set_min_clocks_state(
enum dm_pp_clocks_state clocks_state)
 {
struct dm_pp_power_level_change_request level_change_req = {
-   clocks_state };
+   .power_level = (enum dm_pp_power_level)clocks_state
+   };
 
if (clocks_state > clk->max_clks_state) {
/*Requested state exceeds max supported state.*/
-- 
2.16.0.rc1.238.g530d649a79-goog

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