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由 Milton Miller 提交于
Previously, registering this early console would just result in dropping early buffered printk output until a udbg_putc was registered. However, commit 69331af7 clears the CON_PRINTBUFFER flag on the main console when a CON_BOOT (early) console has been registered, resulting in the buffered messages never being displayed to the user. This fixes the problem by making sure we don't register udbg_console on platforms that don't implement udbg_putc. Signed-off-by: NMilton Miller <miltonm@bga.com> Acked-by: NMark A. Greer <mgreer@mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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