FYI ---------- Forwarded message ---------- From: <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx> Date: Mon, Nov 10, 2014 at 5:43 AM Subject: [Bug 87991] New: hid-sony uses non-DMA-capable transfer buffer, fails To: dmitry.torokhov@xxxxxxxxx https://bugzilla.kernel.org/show_bug.cgi?id=87991 Bug ID: 87991 Summary: hid-sony uses non-DMA-capable transfer buffer, fails Product: Drivers Version: 2.5 Kernel Version: 3.17.1 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Input Devices Assignee: drivers_input-devices@xxxxxxxxxxxxxxxxxxxx Reporter: hector@xxxxxxxxxxxxxx Regression: No The kernel itself complains: input: Sony PLAYSTATION(R)3 Controller as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2.2/1-1.2.2.4/1-1.2.2.4:1.0/0003:054C:0268.000A/input/input51 sony 0003:054C:0268.000A: input,hiddev0,hidraw3: USB HID v1.11 Joystick [Sony PLAYSTATION(R)3 Controller] on usb-0000:00:1a.0-1.2.2.4/input0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 27497 at drivers/usb/core/hcd.c:1503 usb_hcd_map_urb_for_dma+0x588/0x5a0 [usbcore]() transfer buffer not dma capable <snip> sony 0003:054C:0268.000A: failed to retrieve feature report 0xf2 with the Sixaxis MAC address sony: probe of 0003:054C:0268.000A failed with error -11 Looks like the code just uses a stack-allocated buffer (from drivers/hid/hid-sony.c): __u8 buf[18]; <snip comment> ret = hid_hw_raw_request(sc->hdev, 0xf2, buf, sizeof(buf), HID_FEATURE_REPORT, HID_REQ_GET_REPORT); -- You are receiving this mail because: You are watching the assignee of the bug. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
