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Re: [Xen-devel] [PATCH] drivers/exynos4210: Wait the end of last transfer before initializing the UART

On Thu, 2013-05-23 at 12:58 +0100, Ian Campbell wrote:
> On Wed, 2013-05-22 at 12:50 +0100, Julien Grall wrote:
> > When early printk is enabled by the user, it's possible to loose the last
> > characters if the UART is initialized without waiting that the last transfer
> > was completed.
> It might actually be useful to do this in early_printk, i.e. a new
> early_uart_flush or so called from puts and early_puts (or even just
> from the putch hook).

BTW, my concern here is crashing without flushing the buffer and
therefore missing a useful message or having a misleading log...

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