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SubjectRe: [PATCH] drm/amd/display: Fix 32-bit divide error in wait_for_alt_mode
Applied.  thanks!

Alex

On Wed, Aug 21, 2019 at 12:40 PM Harry Wentland <hwentlan@amd.com> wrote:
>
> On 2019-08-20 7:57 p.m., Nathan Chancellor wrote:
> > When building arm32 allyesconfig:
> >
> > ld.lld: error: undefined symbol: __aeabi_uldivmod
> >>>> referenced by dc_link.c
> >>>> gpu/drm/amd/display/dc/core/dc_link.o:(wait_for_alt_mode) in archive drivers/built-in.a
> >>>> referenced by dc_link.c
> >>>> gpu/drm/amd/display/dc/core/dc_link.o:(wait_for_alt_mode) in archive drivers/built-in.a
> >
> > time_taken_in_ns is of type unsigned long long so we need to use div_u64
> > to avoid this error.
> >
> > Fixes: b5b1f4554904 ("drm/amd/display: Enable type C hotplug")
> > Reported-by: Randy Dunlap <rdunlap@infradead.org>
> > Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
>
> Reviewed-by: Harry Wentland <harry.wentland@amd.com>
>
> Harry
>
> > ---
> > drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> > index f2d78d7b089e..8634923b4444 100644
> > --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> > +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> > @@ -721,7 +721,7 @@ bool wait_for_alt_mode(struct dc_link *link)
> > time_taken_in_ns = dm_get_elapse_time_in_ns(
> > link->ctx, finish_timestamp, enter_timestamp);
> > DC_LOG_WARNING("Alt mode entered finished after %llu ms\n",
> > - time_taken_in_ns / 1000000);
> > + div_u64(time_taken_in_ns, 1000000));
> > return true;
> > }
> >
> > @@ -730,7 +730,7 @@ bool wait_for_alt_mode(struct dc_link *link)
> > time_taken_in_ns = dm_get_elapse_time_in_ns(link->ctx, finish_timestamp,
> > enter_timestamp);
> > DC_LOG_WARNING("Alt mode has timed out after %llu ms\n",
> > - time_taken_in_ns / 1000000);
> > + div_u64(time_taken_in_ns, 1000000));
> > return false;
> > }
> >
> >
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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