[radeon-alex:amd-staging-4.9 3/17] drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:531:5: warning: this decimal constant is unsigned only in ISO C90

[kbuild test robot]

tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-4.9
head:   677efd69b448d24dd74e0dfb1d74fb6408c9df81
commit: 9ca8070c97b1eb2b948f065fdbccc15b6e8be639 [3/17] drm/amd/display: rename bandwidth_calcs.c to dce_calcs.c (v2)
config: parisc-allyesconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 9ca8070c97b1eb2b948f065fdbccc15b6e8be639
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function 'calculate_bandwidth':
>> drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:531:5: warning: this decimal constant is unsigned only in ISO C90
        data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(2401171875, 100000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48));
        ^~~~

vim +531 drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c

bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  515  					}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  516  				}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  517  			}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  518  		}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  519  	}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  520  	lb_size_check = bw_def_ok;
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  521  	for (i = 0; i <= maximum_number_of_surfaces - 1; i++) {
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  522  		if (data->enable[i]) {
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  523  			if ((dceip->pre_downscaler_enabled && bw_mtn(data->hsr[i], bw_int_to_fixed(1)))) {
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  524  				data->source_width_in_lb = bw_div(data->source_width_pixels[i], data->hsr[i]);
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  525  			}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  526  			else {
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  527  				data->source_width_in_lb = data->source_width_pixels[i];
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  528  			}
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  529  			switch (data->lb_bpc[i]) {
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  530  			case 8:
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25 @531  				data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(2401171875, 100000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48));
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  532  				break;
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  533  			case 10:
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  534  				data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(300234375, 10000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48));
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  535  				break;
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  536  			default:
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  537  				data->lb_line_pitch = bw_ceil2(bw_mul(bw_int_to_fixed(data->lb_bpc[i]), data->source_width_in_lb), bw_int_to_fixed(48));
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  538  				break;
bad4c165 drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c Harry Wentland 2015-11-25  539  			}

:::::: The code at line 531 was first introduced by commit
:::::: bad4c165a6986a131cdd1455507ba3857baaa561 drm/amd/dc: Add dc display driver

:::::: TO: Harry Wentland <harry.wentland at amd.com>
:::::: CC: Alex Deucher <alexander.deucher at amd.com>

---
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