Kmalloc returns which address

Scott Wood scottwood at
Tue Jul 17 01:46:36 EST 2007

suresh suresh wrote:
> I want know the address return by kmalloc function? is it physical address
> or kernel virtual address.

Kernel virtual.

> For Tx and Rx, hardware uses buffers, so I have to allocate buffers and 
> pass
> the pointer to hardware. Can I pass the pointer returned kmalloc?  or  I
> should convert it into physical address?

You need to convert it; read Documentation/DMA-mapping.txt.


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