[PATCH v3 37/40] drm/i915: Implement the HDCP2.2 support for DP
kbuild test robot
lkp at intel.com
Tue Apr 3 21:16:17 UTC 2018
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-a1-201813 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
drivers/gpu//drm/i915/intel_dp.c: In function 'intel_dp_hdcp2_read_rx_status':
>> drivers/gpu//drm/i915/intel_dp.c:5377:3: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'ssize_t' [-Wformat=]
DRM_ERROR("Read bstatus from DP/AUX failed (%ld)\n", ret);
^
In file included from drivers/gpu//drm/i915/intel_dp.c:34:0:
drivers/gpu//drm/i915/intel_dp.c: At top level:
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)
^
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)
^
Cyclomatic Complexity 5 include/linux/compiler.h:__read_once_size
Cyclomatic Complexity 5 include/linux/compiler.h:__write_once_size
Cyclomatic Complexity 3 include/linux/string.h:memset
Cyclomatic Complexity 4 include/linux/string.h:memcpy
Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:ffs
Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:fls
Cyclomatic Complexity 1 include/linux/log2.h:__ilog2_u32
Cyclomatic Complexity 3 include/linux/log2.h:is_power_of_2
Cyclomatic Complexity 1 include/linux/list.h:INIT_LIST_HEAD
Cyclomatic Complexity 1 include/linux/err.h:ERR_PTR
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_read
Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_set
Cyclomatic Complexity 1 include/asm-generic/atomic-long.h:atomic_long_read
Cyclomatic Complexity 1 include/asm-generic/getorder.h:__get_order
Cyclomatic Complexity 1 include/linux/mutex.h:__mutex_owner
Cyclomatic Complexity 1 include/linux/mutex.h:mutex_is_locked
Cyclomatic Complexity 1 include/linux/jiffies.h:_msecs_to_jiffies
Cyclomatic Complexity 3 include/linux/jiffies.h:msecs_to_jiffies
Cyclomatic Complexity 1 include/linux/jiffies.h:_usecs_to_jiffies
Cyclomatic Complexity 3 include/linux/jiffies.h:usecs_to_jiffies
Cyclomatic Complexity 1 include/linux/kasan.h:kasan_kmalloc
Cyclomatic Complexity 28 include/linux/slab.h:kmalloc_index
Cyclomatic Complexity 1 include/linux/slab.h:kmem_cache_alloc_trace
Cyclomatic Complexity 1 include/linux/slab.h:kmalloc_order_trace
Cyclomatic Complexity 67 include/linux/slab.h:kmalloc_large
Cyclomatic Complexity 5 include/linux/slab.h:kmalloc
Cyclomatic Complexity 1 include/linux/slab.h:kzalloc
Cyclomatic Complexity 1 include/linux/ww_mutex.h:ww_mutex_is_locked
Cyclomatic Complexity 1 include/drm/drm_modeset_lock.h:drm_modeset_is_locked
Cyclomatic Complexity 1 include/drm/drm_modeset_helper_vtables.h:drm_connector_helper_add
Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_max_lane_count
Cyclomatic Complexity 3 include/drm/drm_dp_helper.h:drm_dp_enhanced_frame_cap
Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_is_branch
Cyclomatic Complexity 1 include/drm/drm_dp_helper.h:drm_dp_has_quirk
Cyclomatic Complexity 1 drivers/gpu//drm/i915/i915_reg.h:i915_mmio_reg_offset
Cyclomatic Complexity 1 drivers/gpu//drm/i915/i915_reg.h:i915_mmio_reg_equal
Cyclomatic Complexity 1 drivers/gpu//drm/i915/i915_reg.h:i915_mmio_reg_valid
Cyclomatic Complexity 2 drivers/gpu//drm/i915/i915_utils.h:onoff
Cyclomatic Complexity 1 drivers/gpu//drm/i915/i915_drv.h:intel_info
Cyclomatic Complexity 1 drivers/gpu//drm/i915/i915_drv.h:msecs_to_jiffies_timeout
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_drv.h:intel_get_crtc_for_pipe
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_drv.h:intel_crtc_has_type
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_drv.h:intel_crtc_has_dp_encoder
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_drv.h:intel_dp_unused_lane_mask
Cyclomatic Complexity 3 drivers/gpu//drm/i915/intel_dp.c:intel_dp_rate_limit_len
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_common_len_rate_limit
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_max_common_rate
Cyclomatic Complexity 3 drivers/gpu//drm/i915/intel_dp.c:intel_dp_rate_index
Cyclomatic Complexity 3 drivers/gpu//drm/i915/intel_dp.c:intel_dp_unpack_aux
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:vlv_pipe_has_pp_on
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:vlv_pipe_has_vdd_on
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:vlv_pipe_any
Cyclomatic Complexity 4 drivers/gpu//drm/i915/intel_dp.c:vlv_initial_pps_pipe
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:skl_get_aux_clock_divider
Cyclomatic Complexity 2 drivers/gpu//drm/i915/intel_dp.c:skl_get_aux_send_ctl
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_aux_header
Cyclomatic Complexity 10 drivers/gpu//drm/i915/intel_dp.c:intel_edp_compare_alt_mode
Cyclomatic Complexity 4 drivers/gpu//drm/i915/intel_dp.c:downstream_hpd_needs_d0
Cyclomatic Complexity 7 drivers/gpu//drm/i915/intel_dp.c:gen4_signal_levels
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_autotest_phy_pattern
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_hdcp_toggle_signalling
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_hdcp2_protocol
Cyclomatic Complexity 2 drivers/gpu//drm/i915/intel_drv.h:dp_to_dig_port
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_to_dev
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_drv.h:dp_to_lspcon
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_dp.c:intel_dp_max_common_lane_count
Cyclomatic Complexity 15 drivers/gpu//drm/i915/intel_dp.c:intel_dpcd_offset_for_hdcp2_msgid
Cyclomatic Complexity 8 drivers/gpu//drm/i915/intel_dp.c:intel_dp_hdcp2_timeout_for_msg
Cyclomatic Complexity 1 include/linux/err.h:IS_ERR
Cyclomatic Complexity 3 include/linux/err.h:IS_ERR_OR_NULL
Cyclomatic Complexity 6 drivers/gpu//drm/i915/intel_dp.c:intersect_rates
Cyclomatic Complexity 6 drivers/gpu//drm/i915/intel_dp.c:intel_dp_set_common_rates
Cyclomatic Complexity 7 drivers/gpu//drm/i915/intel_dp.c:intel_aux_power_domain
Cyclomatic Complexity 4 drivers/gpu//drm/i915/intel_dp.c:assert_edp_pll
Cyclomatic Complexity 2 drivers/gpu//drm/i915/i915_drv.h:to_i915
Cyclomatic Complexity 6 drivers/gpu//drm/i915/intel_drv.h:enc_to_dig_port
Cyclomatic Complexity 1 drivers/gpu//drm/i915/intel_drv.h:enc_to_intel_dp
Cyclomatic Complexity 8 drivers/gpu//drm/i915/intel_dp.c:intel_dp_set_clock
Cyclomatic Complexity 5 drivers/gpu//drm/i915/intel_dp.c:gm45_digital_port_connected
Cyclomatic Complexity 5 drivers/gpu//drm/i915/intel_dp.c:g4x_digital_port_connected
Cyclomatic Complexity 5 drivers/gpu//drm/i915/intel_dp.c:ibx_digital_port_connected
Cyclomatic Complexity 2 drivers/gpu//drm/i915/intel_dp.c:ilk_digital_port_connected
Cyclomatic Complexity 5 drivers/gpu//drm/i915/intel_dp.c:cpt_digital_port_connected
Cyclomatic Complexity 2 drivers/gpu//drm/i915/intel_dp.c:snb_digital_port_connected
Cyclomatic Complexity 2 drivers/gpu//drm/i915/intel_dp.c:ivb_digital_port_connected
Cyclomatic Complexity 2 drivers/gpu//drm/i915/intel_dp.c:bdw_digital_port_connected
Cyclomatic Complexity 5 drivers/gpu//drm/i915/intel_dp.c:bxt_digital_port_connected
Cyclomatic Complexity 3 drivers/gpu//drm/i915/intel_dp.c:spt_digital_port_connected
Cyclomatic Complexity 3 drivers/gpu//drm/i915/intel_dp.c:vlv_active_pipe
Cyclomatic Complexity 5 drivers/gpu//drm/i915/intel_dp.c:cnl_max_source_rate
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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