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drm/mst: Fix up u64 division

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Change rem_nsec to u32 since that's what do_div returns, this avoids the
u64 divide in the drm_print args.

Changes in v2:
- Instead of doing do_div in drm_print, make rem_nsec u32 (Ville)

Link to v1: https://patchwork.freedesktop.org/patch/msgid/20191106173622.15573-1-sean@poorly.run

Fixes: 12a280c728 ("drm/dp_mst: Add topology ref history tracking for debugging")
Cc: Juston Li <juston.li@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Harry Wentland <hwentlan@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sean Paul <sean@poorly.run>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106194121.164458-1-sean@poorly.run
This commit is contained in:
Sean Paul 2019-11-06 14:41:15 -05:00
parent 7f4009c4bb
commit b149cbfeec
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/drm_dp_mst_topology.c
View file

@ -1507,12 +1507,12 @@ __dump_topology_ref_history(struct drm_dp_mst_topology_ref_history *history,
ulong *entries;
uint nr_entries;
u64 ts_nsec = entry->ts_nsec;
u64 rem_nsec = do_div(ts_nsec, 1000000000);
u32 rem_nsec = do_div(ts_nsec, 1000000000);
nr_entries = stack_depot_fetch(entry->backtrace, &entries);
stack_trace_snprint(buf, PAGE_SIZE, entries, nr_entries, 4);
drm_printf(&p, " %d %ss (last at %5llu.%06llu):\n%s",
drm_printf(&p, " %d %ss (last at %5llu.%06u):\n%s",
entry->count,
topology_ref_type_to_str(entry->type),
ts_nsec, rem_nsec / 1000, buf);