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Message-Id: <20140505.153731.953697715071354770.davem@davemloft.net>
Date: Mon, 05 May 2014 15:37:31 -0400 (EDT)
From: David Miller <davem@...emloft.net>
To: alchark@...il.com
Cc: rl@...lgate.ch, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, fengguang.wu@...el.com
Subject: Re: [PATCH] net: via-rhine: Convert #ifdef USE_MMIO to a runtime
flag
From: Alexey Charkov <alchark@...il.com>
Date: Sat, 3 May 2014 16:40:53 +0400
> This introduces another flag in 'quirks' to replace the preprocessor
> define (USE_MMIO) used to indicate whether the device needs a
> separate enable routine to operate in MMIO mode.
>
> All of the currently known platform Rhine cores operate in MMIO
> mode by default, and on PCI it is preferred over PIO for performance
> reasons. However, a comment in code suggests that some (?) early
> Rhine cores only work in PIO mode, so they should not be switched
> to MMIO.
>
> Enabling MMIO on PCI is still triggered by the same Kconfig option
> to avoid breaking user configs needlessly, but this can be changed
> going forward towards automatic runtime detection in case a list of
> PIO-only Rhine revisions can be compiled.
>
> This also fixes a couple of compiler warnings detected by Fengguang
> Wu's test bot (!USE_MMIO case):
...
> Signed-off-by: Alexey Charkov <alchark@...il.com>
Applied, but in the future please make it clear what tree you are
targetting by saying "[PATCH net]" or "[PATCH net-next]" in your
subject line.
Thanks.
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