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From: Russell Currey <ruscur@russell.cc>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/6] powerpc/powernv: opal-kmsg use flush fallback from console code
Date: Tue, 10 Apr 2018 15:01:25 +1000	[thread overview]
Message-ID: <1523336485.3046.2.camel@russell.cc> (raw)
In-Reply-To: <20180409054056.27292-2-npiggin@gmail.com>

On Mon, 2018-04-09 at 15:40 +1000, Nicholas Piggin wrote:
> Use the more refined and tested event polling loop from
> opal_put_chars
> as the fallback console flush in the opal-kmsg path. This loop is
> used
> by the console driver today, whereas the opal-kmsg fallback is not
> likely to have been used for years.
> 
> Use WARN_ONCE rather than a printk when the fallback is invoked to
> prepare for moving the console flush into a common function.
> 
> Cc: Russell Currey <ruscur@russell.cc>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Reviewed-by: Russell Currey <ruscur@russell.cc>

  reply	other threads:[~2018-04-10  5:01 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-09  5:40 [PATCH 0/6] improve OPAL cosole flushing and locking Nicholas Piggin
2018-04-09  5:40 ` [PATCH 1/6] powerpc/powernv: opal-kmsg use flush fallback from console code Nicholas Piggin
2018-04-10  5:01   ` Russell Currey [this message]
2018-04-09  5:40 ` [PATCH 2/6] powerpc/powernv: Implement and use opal_flush_console Nicholas Piggin
2018-04-10  5:02   ` Russell Currey
2018-04-09  5:40 ` [PATCH 3/6] powerpc/powernv: Remove OPALv1 support from opal console driver Nicholas Piggin
2018-04-09  5:40 ` [PATCH 4/6] powerpc/powernv: move opal console flushing to udbg Nicholas Piggin
2018-04-09  5:40 ` [PATCH 5/6] powerpc/powernv: implement opal_put_chars_nonatomic Nicholas Piggin
2018-04-09  5:57   ` Benjamin Herrenschmidt
2018-04-09  6:23     ` Nicholas Piggin
2018-04-09  8:24       ` Benjamin Herrenschmidt
2018-04-09  9:02         ` Nicholas Piggin
2018-04-09  5:40 ` [PATCH 6/6] drivers/tty/hvc: remove unexplained "just in case" spin delay Nicholas Piggin
2018-04-09  6:03   ` Benjamin Herrenschmidt

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