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由 Wu Fengguang 提交于
This avoids lost of presence info on module reloading. The presence info used to be only updated at the (rare) hotplug events. Proposed by David, thanks! CC: David Härdeman <david@hardeman.nu> Signed-off-by: NWu Fengguang <fengguang.wu@intel.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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