Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH net-next 2/4] net: ipa: introduce dma_addr_high32()
To:     Florian Fainelli <f.fainelli@gmail.com>,
        Alex Elder <elder@linaro.org>, davem@davemloft.net,
        kuba@kernel.org
Cc:     bjorn.andersson@linaro.org, evgreen@chromium.org,
        cpratapa@codeaurora.org, subashab@codeaurora.org, elder@kernel.org,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20210317222946.118125-1-elder@linaro.org>
 <20210317222946.118125-3-elder@linaro.org>
 <36b9977b-32b1-eb4a-0056-4f742e3fe4d6@gmail.com>
From:   Alex Elder <elder@ieee.org>
Message-ID: <60106d7b-ad70-01fa-9f90-fe384cc428f8@ieee.org>
Date:   Wed, 17 Mar 2021 17:49:48 -0500
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.7.1
MIME-Version: 1.0
In-Reply-To: <36b9977b-32b1-eb4a-0056-4f742e3fe4d6@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 3/17/21 5:47 PM, Florian Fainelli wrote:
>> +/* Encapsulate extracting high-order 32 bits of DMA address */
>> +static u32 dma_addr_high32(dma_addr_t addr)
>> +{
>> +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
>> +	return (u32)(addr >> 32);
> You can probably use upper_32bits() here...

Where is that defined?  I'd be glad to use it.	-Alex