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(parent: d00b414) | patch
usb: dwc2: clip max_transfer_size to 65535
authorPaul Zimmerman <Paul.Zimmerman@synopsys.com>
Tue, 16 Sep 2014 20:47:26 +0000 (13:47 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 19 Sep 2014 23:17:58 +0000 (16:17 -0700)
commite8f8c14d9da7ab1b8a7b0f769cd7148ca2cc7d10
tree1f689fc9680a8059f83fd2be66c9541a700c4da5tree | snapshot
parentd00b41428042e72d9dc2557d9147434a4e3d631fcommit | diff
usb: dwc2: clip max_transfer_size to 65535

Clip max_transfer_size to 65535 for host. dwc2_hc_setup_align_buf()
allocates coherent buffers with this size, and if it's too large we
can exhaust the coherent DMA pool.

Tested on Raspberry Pi and Altera SOCFPGA.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/dwc2/core.c diff | blob | history
Beck SC1x5 Kernel