From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 24 Feb 2020 22:56:57 +0100
Subject: [OpenRISC] [PATCH 4/5] dma-direct: provide a
 arch_dma_clear_uncached hook
In-Reply-To: <20200224215327.GB11565@iweiny-DESK2.sc.intel.com>
References: <20200224194446.690816-1-hch@lst.de>
 <20200224194446.690816-5-hch@lst.de>
 <20200224215327.GB11565@iweiny-DESK2.sc.intel.com>
Message-ID: <20200224215657.GA12618@lst.de>
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To: openrisc@lists.librecores.org

On Mon, Feb 24, 2020 at 01:53:28PM -0800, Ira Weiny wrote:
> > +	else if (IS_ENABLED(CONFIG_ARCH_HAS_DMA_CLEAR_UNCACHED))
> > +		arch_dma_clear_uncached(cpu_addr, size);
> 
> Isn't using arch_dma_clear_uncached() before patch 5 going to break
> bisectability?

Only if ARCH_HAS_DMA_CLEAR_UNCACHED is selected by anything, which
only happens in patch 5.