No, it is not safe to DMA from the stack in all architectures. Matt
On Mon, Jun 23, 2003 at 08:01:57PM +0300, Tuukka Toivonen wrote: > Is it OK to have the USB transfer buffer (parameter 7 to usb_control_msg()) > in kernel stack? > > The documentation says that "This buffer has to be allocated as a > non-pageable contiguous physical memory block" and if it's placed in stack > it works on x86, but is it safe thing to do across all architectures? > > > ------------------------------------------------------- > This SF.Net email is sponsored by: INetU > Attention Web Developers & Consultants: Become An INetU Hosting Partner. > Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! > INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php > _______________________________________________ > [EMAIL PROTECTED] > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel -- Matthew Dharm Home: [EMAIL PROTECTED] Maintainer, Linux USB Mass Storage Driver Hi. I have my back hairs caught in my computer fan. -- Customer User Friendly, 8/20/1998
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