diff options
| author | Imran Khan <[email protected]> | 2021-11-08 18:33:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-11-09 10:02:50 -0800 |
| commit | 0f68d45ef41abb618a9ca33996348ae73800a106 (patch) | |
| tree | d09081e3773301b064e6f723c0ae8ff84eef234e /drivers/gpu/drm/drm_dp_mst_topology.c | |
| parent | 505be48165fa2f2cb795659b4fc61f35563d105e (diff) | |
lib, stackdepot: add helper to print stack entries into buffer
To print stack entries into a buffer, users of stackdepot, first get a
list of stack entries using stack_depot_fetch and then print this list
into a buffer using stack_trace_snprint. Provide a helper in stackdepot
for this purpose. Also change above mentioned users to use this helper.
[[email protected]: fix build error]
Link: https://lkml.kernel.org/r/[email protected]
[[email protected]: export stack_depot_snprint() to modules]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Imran Khan <[email protected]>
Suggested-by: Vlastimil Babka <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: Jani Nikula <[email protected]> [i915]
Cc: Alexander Potapenko <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 86d13d6bc463..2d1adab9e360 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -1668,13 +1668,10 @@ __dump_topology_ref_history(struct drm_dp_mst_topology_ref_history *history, for (i = 0; i < history->len; i++) { const struct drm_dp_mst_topology_ref_entry *entry = &history->entries[i]; - ulong *entries; - uint nr_entries; u64 ts_nsec = entry->ts_nsec; 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); + stack_depot_snprint(entry->backtrace, buf, PAGE_SIZE, 4); drm_printf(&p, " %d %ss (last at %5llu.%06u):\n%s", entry->count, |