Message-ID: <4CFE86AC.9010801@codeaurora.org>
Date: Tue, 07 Dec 2010 11:10:36 -0800
From: Stephen Boyd <sboyd@codeaurora.org>
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To: Tony Lindgren <tony@atomide.com>
CC: Daniel Walker <dwalker@codeaurora.org>, linux-kernel@vger.kernel.org,
        linux-arm-msm@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
        Nicolas Pitre <nico@fluxnic.net>, Greg Kroah-Hartman <gregkh@suse.de>,
        Mike Frysinger <vapier@gentoo.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Alan Cox <alan@lxorguk.ukuu.org.uk>,
        Randy Dunlap <randy.dunlap@oracle.com>,
        FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
        linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] drivers: char: hvc: add arm JTAG DCC console support
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On 12/01/2010 12:20 PM, Stephen Boyd wrote:
> Definitely for TX since it seems like a redundant loop, but I agree RX
> code has changed. Instead of
>
> If RX buffer full
> Poll for RX buffer full
> Read character from RX buffer
>
> we would have
>
> If RX buffer full
> Read character from RX buffer
>
> which doesn't seem all that different assuming the RX buffer doesn't go
> from full to empty between the If and Poll steps. Hopefully Tony knows more.
>

Tony, any thoughts?

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