Re: [Intel-gfx] [PATCH v3 08/40] misc/mei/hdcp: Initiate Wired HDCP2.2 Tx Session

[kbuild test robot <lkp@intel.com>]

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Hi Ramalingam,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on next-20180403]
[cannot apply to v4.16]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Ramalingam-C/drm-i915-Implement-HDCP2-2/20180404-031743
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: i386-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

>> drivers/misc/mei/hdcp/mei_hdcp.c:52:5: error: redefinition of 'mei_initiate_hdcp2_session'
    int mei_initiate_hdcp2_session(struct mei_cl_device *cldev,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/misc/mei/hdcp/mei_hdcp.c:35:0:
   include/linux/mei_hdcp.h:122:5: note: previous definition of 'mei_initiate_hdcp2_session' was here
    int mei_initiate_hdcp2_session(struct mei_cl_device *cldev,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/misc/mei/hdcp/mei_hdcp.c:117:5: error: redefinition of 'mei_cldev_register_notify'
    int mei_cldev_register_notify(struct notifier_block *nb)
        ^~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/misc/mei/hdcp/mei_hdcp.c:35:0:
   include/linux/mei_hdcp.h:113:12: note: previous definition of 'mei_cldev_register_notify' was here
    static int mei_cldev_register_notify(struct notifier_block *nb)
               ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/misc/mei/hdcp/mei_hdcp.c:123:5: error: redefinition of 'mei_cldev_unregister_notify'
    int mei_cldev_unregister_notify(struct notifier_block *nb)
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/misc/mei/hdcp/mei_hdcp.c:35:0:
   include/linux/mei_hdcp.h:117:12: note: previous definition of 'mei_cldev_unregister_notify' was here
    static int mei_cldev_unregister_notify(struct notifier_block *nb)
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mei_hdcp.h:117:12: warning: 'mei_cldev_unregister_notify' defined but not used [-Wunused-function]
   include/linux/mei_hdcp.h:113:12: warning: 'mei_cldev_register_notify' defined but not used [-Wunused-function]
    static int mei_cldev_register_notify(struct notifier_block *nb)
               ^~~~~~~~~~~~~~~~~~~~~~~~~

vim +/mei_initiate_hdcp2_session +52 drivers/misc/mei/hdcp/mei_hdcp.c

    41	
    42	/**
    43	 * mei_initiate_hdcp2_session:
    44	 *	Function to start a Wired HDCP2.2 Tx Session with ME FW
    45	 *
    46	 * @cldev		: Pointer for mei client device
    47	 * @data		: Intel HW specific Data
    48	 * @ake_data		: ptr to store AKE_Init
    49	 *
    50	 * Returns 0 on Success, <0 on Failure.
    51	 */
  > 52	int mei_initiate_hdcp2_session(struct mei_cl_device *cldev,
    53				       struct mei_hdcp_data *data,
    54				       struct hdcp2_ake_init *ake_data)
    55	{
    56		struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } };
    57		struct wired_cmd_initiate_hdcp2_session_out
    58							session_init_out = { { 0 } };
    59		struct device *dev;
    60		ssize_t byte;
    61	
    62		if (!data || !ake_data)
    63			return -EINVAL;
    64	
    65		dev = &cldev->dev;
    66	
    67		session_init_in.header.api_version = HDCP_API_VERSION;
    68		session_init_in.header.command_id = WIRED_INITIATE_HDCP2_SESSION;
    69		session_init_in.header.status = ME_HDCP_STATUS_SUCCESS;
    70		session_init_in.header.buffer_len =
    71					WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN;
    72	
    73		session_init_in.port.integrated_port_type = data->port_type;
    74		session_init_in.port.physical_port = data->port;
    75		session_init_in.protocol = (uint8_t)data->protocol;
    76	
    77		byte = mei_cldev_send(cldev, (u8 *)&session_init_in,
    78				      sizeof(session_init_in));
    79		if (byte < 0) {
    80			dev_dbg(dev, "mei_cldev_send failed. %d\n", (int)byte);
    81			return byte;
    82		}
    83	
    84		byte = mei_cldev_recv(cldev, (u8 *)&session_init_out,
    85				      sizeof(session_init_out));
    86		if (byte < 0) {
    87			dev_dbg(dev, "mei_cldev_recv failed. %d\n", (int)byte);
    88			return byte;
    89		}
    90	
    91		if (session_init_out.header.status != ME_HDCP_STATUS_SUCCESS) {
    92			dev_dbg(dev, "ME cmd 0x%08X Failed. Status: 0x%X\n",
    93				WIRED_INITIATE_HDCP2_SESSION,
    94				session_init_out.header.status);
    95			return -1;
    96		}
    97	
    98		ake_data->msg_id = HDCP_2_2_AKE_INIT;
    99		ake_data->tx_caps = session_init_out.tx_caps;
   100		memcpy(ake_data->r_tx, session_init_out.r_tx,
   101		       sizeof(session_init_out.r_tx));
   102	
   103		return 0;
   104	}
   105	EXPORT_SYMBOL(mei_initiate_hdcp2_session);
   106	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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