On Tue, 17 Jan 2012 10:56:02 -0800 Simon Glass <sjg@xxxxxxxxxxxx> wrote: > The synchronize_rcu() call resulting from making every serial driver > wake-up capable (commit b3b708fa) slows boot down by 600ms on my Tegra2x > system (with CONFIG_PREEMPT disabled). > > Waking up the machine from a serial port seems to be an unlikely > requirement, so make serial_core default to not using the behaviour. Its quite normal on x86, and very very common on embedded. Sorry someone needs to fix the root cause not hack the driver. The other question would be whether in PC space you can deduce the wake up situation from ACPI data ? One for Len ? Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
