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Commit 9bfc8da0 authored by Henrik Rydberg's avatar Henrik Rydberg Committed by Jiri Kosina
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HID: Only dump input if someone is listening



Going through the motions of printing the debug message information
takes a long time; using the keyboard can lead to a 160 us irqsoff
latency. This patch skips hid_dump_input() when there are no open
handles, which brings latency down to 100 us.

Signed-off-by: default avatarHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 67ddbb3e
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