Hi Michał, On Thu, Apr 06, 2017 at 05:49:02AM +0200, Michał Mirosław wrote: > fix for WARN: > > usb 3-2.4.1: NFC: Exchanging data failed (error 0x13) > llcp: nfc_llcp_recv: err -5 > llcp: nfc_llcp_symm_timer: SYMM timeout > ------------[ cut here ]------------ > WARNING: CPU: 1 PID: 26397 at .../drivers/usb/core/hcd.c:1584 usb_hcd_map_urb_for_dma+0x370/0x550 > transfer buffer not dma capable > [...] > Workqueue: events nfc_llcp_timeout_work [nfc] > Call Trace: > ? dump_stack+0x46/0x5a > ? __warn+0xb9/0xe0 > ? warn_slowpath_fmt+0x5a/0x80 > ? usb_hcd_map_urb_for_dma+0x370/0x550 > ? usb_hcd_submit_urb+0x2fb/0xa60 > ? dequeue_entity+0x3f2/0xc30 > ? pn533_usb_send_ack+0x5d/0x80 [pn533_usb] > ? pn533_usb_abort_cmd+0x13/0x20 [pn533_usb] > ? pn533_dep_link_down+0x32/0x70 [pn533] > ? nfc_dep_link_down+0x87/0xd0 [nfc] > [...] > usb 3-2.4.1: NFC: Exchanging data failed (error 0x13) > llcp: nfc_llcp_recv: err -5 > llcp: nfc_llcp_symm_timer: SYMM timeout > > Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx> > --- > v2: > - "un-moved" other declarations > - rebased against nfc-next > --- > drivers/nfc/pn533/i2c.c | 2 +- > drivers/nfc/pn533/usb.c | 4 ++-- > 2 files changed, 3 insertions(+), 3 deletions(-) Applied to nfc-next, thanks. Cheers, Samuel.