Messages in this thread | | | Date | Tue, 18 Sep 2012 15:34:14 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH] dma-debug: New interfaces to debug dma mapping errors |
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On Mon, Sep 17, 2012 at 04:45:15PM -0600, Shuah Khan wrote: > Yeah. I will firm up my ideas a bit and summarize in a day or two. Would > like to hear your ideas as well at that time, so we can pick the one > that works the best.
I think the best approach for this functionality is to add a flag to 'struct dma_debug_entry' which tells whether the address has been checked with dma_mapping error or not. On unmap or driver unload you can then check for that flag and print a warning when an unchecked address is detected.
Joerg
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