usbnet/cdc_ncm: Don't use stack variables for DMA
The cdc_ncm driver still has a few places where stack variables are passed to the cdc_ncm_do_request function. This triggers a stack trace in lib/dma-debug.c if the CONFIG_DEBUG_DMA_API option is set. Adjust these calls to pass parameters that have been allocated with kzalloc. Signed-off-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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