How can I get physical address from a struct dma_buf

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Subject: How can I get physical address from a struct dma_buf
From: m silverstri <michael.j.silverstri@xxxxxxxxx>
Date: Fri, 7 Feb 2014 12:02:37 -0800

Hi,

If I have a struct dma_buf dma buffer, how can I the physical address?

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