linux-kernel - Re: [PATCH] drm/amd/display: remove unused matching_stream

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Message-ID: <CAKwvOd=CVq3DTPwUgDgghJBKsUKgL69K7Hne5=gY9V7vwshfAg@mail.gmail.com>
Date:   Fri, 7 Apr 2023 11:29:55 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Tom Rix <trix@...hat.com>
Cc:     harry.wentland@....com, sunpeng.li@....com,
        Rodrigo.Siqueira@....com, alexander.deucher@....com,
        christian.koenig@....com, Xinhui.Pan@....com, airlied@...il.com,
        daniel@...ll.ch, nathan@...nel.org, Jun.Lei@....com,
        wenjing.liu@....com, Jimmy.Kizito@....com, Cruise.Hung@....com,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] drm/amd/display: remove unused matching_stream_ptrs variable

On Fri, Apr 7, 2023 at 10:52 AM Nick Desaulniers
<ndesaulniers@...gle.com> wrote:
>
> Jimmy, can you review?
>
> The change LGTM; but I'm not sure if there was something else intended here.

Nevermind, Jimmy's email address bounced.
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

>
> On Sat, Mar 25, 2023 at 6:45 AM Tom Rix <trix@...hat.com> wrote:
> >
> > clang with W=1 reports
> > drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_enc_cfg.c:625:6: error:
> >   variable 'matching_stream_ptrs' set but not used [-Werror,-Wunused-but-set-variable]
> >         int matching_stream_ptrs = 0;
> >             ^
> > This variable is not used so remove it.
> >
> > Signed-off-by: Tom Rix <trix@...hat.com>
> > ---
> >  drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c | 5 +----
> >  1 file changed, 1 insertion(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
> > index 41198c729d90..30c0644d4418 100644
> > --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
> > +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
> > @@ -622,7 +622,6 @@ bool link_enc_cfg_validate(struct dc *dc, struct dc_state *state)
> >         int i, j;
> >         uint8_t valid_count = 0;
> >         uint8_t dig_stream_count = 0;
> > -       int matching_stream_ptrs = 0;
> >         int eng_ids_per_ep_id[MAX_PIPES] = {0};
> >         int ep_ids_per_eng_id[MAX_PIPES] = {0};
> >         int valid_bitmap = 0;
> > @@ -645,9 +644,7 @@ bool link_enc_cfg_validate(struct dc *dc, struct dc_state *state)
> >                 struct link_enc_assignment assignment = state->res_ctx.link_enc_cfg_ctx.link_enc_assignments[i];
> >
> >                 if (assignment.valid) {
> > -                       if (assignment.stream == state->streams[i])
> > -                               matching_stream_ptrs++;
> > -                       else
> > +                       if (assignment.stream != state->streams[i])
> >                                 valid_stream_ptrs = false;
> >                 }
> >         }
> > --
> > 2.27.0
> >
>
>
> --
> Thanks,
> ~Nick Desaulniers



-- 
Thanks,
~Nick Desaulniers