usb: remove a stale comment in hcd_alloc_coherent (ac2658e0) · Commits · 戴 / test

Now that we have the local memory pool implemented there is no need to use dma_declare_coherent_memory. Signed-off-by:

drivers/usb/core/hcd.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -1249,9 +1249,6 @@ EXPORT_SYMBOL_GPL(usb_hcd_unlink_urb_from_ep);
		* To support host controllers with limited dma capabilities we provide dma
		* bounce buffers. This feature can be enabled by initializing
		* hcd->localmem_pool using usb_hcd_setup_local_mem().
		* For this to work properly the host controller code must first use the
		* function dma_declare_coherent_memory() to point out which memory area
		* that should be used for dma allocations.
		*
		* The initialized hcd->localmem_pool then tells the usb code to allocate all
		* data for dma using the genalloc API.