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From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Christoph Hellwig <hch@lst.de>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
	Tony Lindgren <tony@atomide.com>,
	Robin Murphy <robin.murphy@arm.com>,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-usb@vger.kernel.org
Subject: Re: [PATCH 2/4] ARM/footbridge: switch to use dma_direct_set_offset for lbus DMA offsets
Date: Thu, 17 Sep 2020 19:53:40 +0100	[thread overview]
Message-ID: <20200917185340.GC1559@shell.armlinux.org.uk> (raw)
In-Reply-To: <20200917173229.3311382-3-hch@lst.de>

On Thu, Sep 17, 2020 at 07:32:27PM +0200, Christoph Hellwig wrote:
>  static int __init cats_pci_init(void)
>  {
> -	if (machine_is_cats())
> -		pci_common_init(&cats_pci);
> +	if (!machine_is_cats())
> +		return 0;
> +	bus_register_notifier(&pci_bus_type, &footbridge_pci_dma_nb);
> +	pci_common_init(&cats_pci);

I'd prefer these things to retain a positive-logic construct, so:

	if (machine_is_cats()) {
		bus_register_notifier(&pci_bus_type, &footbridge_pci_dma_nb);
		pci_common_init(&cats_pci);
	}

It's the same number of lines.

Otherwise, I think it's fine. I'll try to find some spare time to give
it a go on a Netwinder.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

  reply	other threads:[~2020-09-17 18:53 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-17 17:32 RFC: remove the need for <asm/dma-direct.h> on ARM Christoph Hellwig
2020-09-17 17:32 ` [PATCH 1/4] ARM/omap1: switch to use dma_direct_set_offset for lbus DMA offsets Christoph Hellwig
2020-09-18  5:49   ` Tony Lindgren
2020-09-19 22:29     ` Janusz Krzysztofik
2020-09-21  6:44       ` Tony Lindgren
2020-09-21  6:47         ` Christoph Hellwig
2020-09-23 10:05           ` Russell King - ARM Linux admin
2020-09-25  4:16         ` Christoph Hellwig
2020-09-17 17:32 ` [PATCH 2/4] ARM/footbridge: " Christoph Hellwig
2020-09-17 18:53   ` Russell King - ARM Linux admin [this message]
2020-09-17 17:32 ` [PATCH 3/4] ARM/dma-mapping: don't handle NULL devices in dma-direct.h Christoph Hellwig
2020-09-17 18:50   ` Russell King - ARM Linux admin
2020-09-18  5:10     ` Christoph Hellwig
2020-09-17 17:32 ` [PATCH 4/4] ARM/dma-mapping: remove the arm specific phys to dma translation helpers Christoph Hellwig

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