Hi Ramalingam, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING 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-randconfig-x071-201813 (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 warnings (new ones prefixed by >>): In file included from include/drm/drm_mm.h:49:0, from include/drm/drmP.h:73, from drivers/gpu/drm/i915/intel_dp.c:36: drivers/gpu/drm/i915/intel_dp.c: In function 'intel_dp_hdcp2_read_rx_status': >> drivers/gpu/drm/i915/intel_dp.c:5377:13: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'ssize_t {aka int}' [-Wformat=] DRM_ERROR("Read bstatus from DP/AUX failed (%ld)\n", ret); ^ include/drm/drm_print.h:239:10: note: in definition of macro 'DRM_ERROR' drm_err(fmt, ##__VA_ARGS__) ^~~ In file included from drivers/gpu/drm/i915/intel_dp.c:34:0: At top level: include/linux/mei_hdcp.h:148:12: warning: 'mei_cldev_unregister_notify' defined but not used [-Wunused-function] static int mei_cldev_unregister_notify(struct notifier_block *nb) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mei_hdcp.h:144:12: warning: 'mei_cldev_register_notify' defined but not used [-Wunused-function] static int mei_cldev_register_notify(struct notifier_block *nb) ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +5377 drivers/gpu/drm/i915/intel_dp.c 5366 5367 static inline 5368 int intel_dp_hdcp2_read_rx_status(struct intel_digital_port *intel_dig_port, 5369 uint8_t *rx_status) 5370 { 5371 ssize_t ret; 5372 5373 ret = drm_dp_dpcd_read(&intel_dig_port->dp.aux, 5374 DP_HDCP_2_2_REG_RXSTATUS_OFFSET, rx_status, 5375 HDCP_2_2_DP_RXSTATUS_LEN); 5376 if (ret != HDCP_2_2_DP_RXSTATUS_LEN) { > 5377 DRM_ERROR("Read bstatus from DP/AUX failed (%ld)\n", ret); 5378 return ret >= 0 ? -EIO : ret; 5379 } 5380 5381 return 0; 5382 } 5383 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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