tree: git://people.freedesktop.org/~agd5f/linux.git amd-staging-4.6
head: beebb009c05fd5a89617327a9cfb724f19cecf1b
commit: ccb00a9a5dc119aae7a8c71834f658cb3f203ad7 [397/989] drm/amd/dal: Simplify return value for HW programming
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
git checkout ccb00a9a5dc119aae7a8c71834f658cb3f203ad7
# save the attached .config to linux build tree
make ARCH=x86_64
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
All errors (new ones prefixed by >>):
drivers/gpu/drm/amd/amdgpu/../dal/dc/calcs/bandwidth_calcs.c: In function 'calculate_bandwidth':
>> drivers/gpu/drm/amd/amdgpu/../dal/dc/calcs/bandwidth_calcs.c:2780:7: error: array subscript is above array bounds [-Werror=array-bounds]
bw_max(
^~~~~~~
results->blackout_recovery_time,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bw_div(
~~~~~~~
(sub(
~~~~~
add(
~~~~
mul(
~~~~
bw_div(
~~~~~~~
mul(
~~~~
results->display_bandwidth[k],
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->useful_bytes_per_request[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->bytes_per_request[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vbios->blackout_duration),
~~~~~~~~~~~~~~~~~~~~~~~~~~
bw_div(
~~~~~~~
mul(
~~~~
mul(
~~~~
mul(
~~~~
(add(
~~~~~
add(
~~~~
mul(
~~~~
vbios->mcifwrmc_urgent_latency,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int_to_fixed(
~~~~~~~~~~~~~
2)),
~~~~
results->dmif_burst_time[i][j]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->mcifwr_burst_time[y_clk_level][sclk_level])),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->dispclk),
~~~~~~~~~~~~~~~~~~
results->bytes_per_pixel[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->lines_interleaved_in_mem_access[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->latency_hiding_lines[k])),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->adjusted_data_buffer_size[k])),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(sub(
~~~~~
bw_div(
~~~~~~~
mul(
~~~~
mul(
~~~~
results->dispclk,
~~~~~~~~~~~~~~~~~
results->bytes_per_pixel[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->lines_interleaved_in_mem_access[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->latency_hiding_lines[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bw_div(
~~~~~~~
mul(
~~~~
results->display_bandwidth[k],
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->useful_bytes_per_request[k]),
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
results->bytes_per_request[k])))));
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../dal/dc/calcs/bandwidth_calcs.c:2802:41: error: array subscript is above array bounds [-Werror=array-bounds]
results->dmif_burst_time[i][j]),
~~~~~~~~~~~~~~~~~~~~~~~~^~~
cc1: all warnings being treated as errors
vim +2780 drivers/gpu/drm/amd/amdgpu/../dal/dc/calcs/bandwidth_calcs.c
142fbbaab Harry Wentland 2015-11-25 2764 if (ltn(results->adjusted_data_buffer_size[k],
142fbbaab Harry Wentland 2015-11-25 2765 mul(
142fbbaab Harry Wentland 2015-11-25 2766 bw_div(
142fbbaab Harry Wentland 2015-11-25 2767 mul(
142fbbaab Harry Wentland 2015-11-25 2768 results->display_bandwidth[k],
142fbbaab Harry Wentland 2015-11-25 2769 results->useful_bytes_per_request[k]),
142fbbaab Harry Wentland 2015-11-25 2770 results->bytes_per_request[k]),
142fbbaab Harry Wentland 2015-11-25 2771 (add(
142fbbaab Harry Wentland 2015-11-25 2772 add(
142fbbaab Harry Wentland 2015-11-25 2773 vbios->blackout_duration,
142fbbaab Harry Wentland 2015-11-25 2774 mul(
142fbbaab Harry Wentland 2015-11-25 2775 vbios->mcifwrmc_urgent_latency,
142fbbaab Harry Wentland 2015-11-25 2776 int_to_fixed(
142fbbaab Harry Wentland 2015-11-25 2777 2))),
142fbbaab Harry Wentland 2015-11-25 2778 results->mcifwr_burst_time[y_clk_level][sclk_level]))))) {
142fbbaab Harry Wentland 2015-11-25 2779 results->blackout_recovery_time =
142fbbaab Harry Wentland 2015-11-25 @2780 bw_max(
142fbbaab Harry Wentland 2015-11-25 2781 results->blackout_recovery_time,
142fbbaab Harry Wentland 2015-11-25 2782 bw_div(
142fbbaab Harry Wentland 2015-11-25 2783 (sub(
142fbbaab Harry Wentland 2015-11-25 2784 add(
142fbbaab Harry Wentland 2015-11-25 2785 mul(
142fbbaab Harry Wentland 2015-11-25 2786 bw_div(
142fbbaab Harry Wentland 2015-11-25 2787 mul(
142fbbaab Harry Wentland 2015-11-25 2788 results->display_bandwidth[k],
:::::: The code at line 2780 was first introduced by commit
:::::: 142fbbaab6655947879414a5a9730a6da12b7cf3 drm/amd/dal: Add dal display driver
:::::: TO: Harry Wentland <harry.wentland@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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