The set of available structs is not protected by the spinlock, and for the single read we can use READ_ONCE instead.
Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Joonas Lahtinen <[email protected]> --- drivers/gpu/drm/i915/i915_debugfs.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index fcac795d4396..f30591f44d3a 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1459,17 +1459,14 @@ static int ironlake_drpc_info(struct seq_file *m) static int i915_forcewake_domains(struct seq_file *m, void *data) { - struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_i915_private *i915 = node_to_i915(m->private); struct intel_uncore_forcewake_domain *fw_domain; unsigned int tmp; - spin_lock_irq(&dev_priv->uncore.lock); - for_each_fw_domain(fw_domain, dev_priv, tmp) { + for_each_fw_domain(fw_domain, i915, tmp) seq_printf(m, "%s.wake_count = %u\n", intel_uncore_forcewake_domain_to_str(fw_domain->id), - fw_domain->wake_count); - } - spin_unlock_irq(&dev_priv->uncore.lock); + READ_ONCE(fw_domain->wake_count)); return 0; } -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
