Hello Daniel Vetter,
The patch 96154f2faba5: "drm/i915: switch ring->id to be a real id"
from Dec 14, 2011, leads to the following warning:
drivers/gpu/drm/i915/i915_debugfs.c:688 print_error_buffers()
error: err->ring is never equal to -1 (wrong type 0 - 15).
@@ -724,6 +724,7 @@ static void print_error_buffers(struct seq_file *m,
tiling_flag(err->tiling),
dirty_flag(err->dirty),
purgeable_flag(err->purgeable),
+ err->ring != -1 ? " " : "",
^^^^^^^^^^^^^^^
->ring is an unsigned bitfield so it's never equal to -1.
ring_str(err->ring),
cache_level_str(err->cache_level));
regards,
dan carpenter
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