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901b3d75e7
This updates the code handling dma-coherent buffer allocations, basically reusing code from the musb_hdrc driver. Instead of trying to work around two significant limitations of the dma framework (memory wastage for buffers smaller than a page, and inconsistency between calling context requirements for allocation and free) this just works around one of them (the latter). So count this as two steps forward (bugfixes: the latter issue could cause errors on some platforms, and some MIPS changes broke code for the former), and one step back (increasing cross-platform memory wastage). Plus linelength and whitespace fixes; and minor data segment shrinkage. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>