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Benjamin Tissoires authored
Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove buffers allocated on the stack. Use a spinlock to prevent concurrent accesses to the buffer. Signed-off-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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