[radeon-alex:amd-staging-drm-next 744/765] drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:2280 sienna_cichlid_dump_pptable() error: buffer overflow 'pptable->SkuReserved' 8 <= 8

[Dan Carpenter]

tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next
head:   1e5c252665ac026e977cd87fb8fcdb6f0bc0b759
commit: 62b1f5006728492c79182d960635d749d84f71ec [744/765] drm/amd/pm: update driver if file for sienna cichlid
config: i386-randconfig-m031-20201022 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at oracle.com>

smatch warnings:
drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:2280 sienna_cichlid_dump_pptable() error: buffer overflow 'pptable->SkuReserved' 8 <= 8

vim +2280 drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c

d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2263  	dev_info(smu->adev->dev, "ReservedEquation2{a = 0x%x b = 0x%x c = 0x%x}\n",
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2264  			pptable->ReservedEquation2.a,
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2265  			pptable->ReservedEquation2.b,
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2266  			pptable->ReservedEquation2.c);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2267  	dev_info(smu->adev->dev, "ReservedEquation3{a = 0x%x b = 0x%x c = 0x%x}\n",
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2268  			pptable->ReservedEquation3.a,
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2269  			pptable->ReservedEquation3.b,
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2270  			pptable->ReservedEquation3.c);
b455159c053130d drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Likun Gao    2020-05-29  2271  
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2272  	dev_info(smu->adev->dev, "SkuReserved[0] = 0x%x\n", pptable->SkuReserved[0]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2273  	dev_info(smu->adev->dev, "SkuReserved[1] = 0x%x\n", pptable->SkuReserved[1]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2274  	dev_info(smu->adev->dev, "SkuReserved[2] = 0x%x\n", pptable->SkuReserved[2]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2275  	dev_info(smu->adev->dev, "SkuReserved[3] = 0x%x\n", pptable->SkuReserved[3]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2276  	dev_info(smu->adev->dev, "SkuReserved[4] = 0x%x\n", pptable->SkuReserved[4]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2277  	dev_info(smu->adev->dev, "SkuReserved[5] = 0x%x\n", pptable->SkuReserved[5]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2278  	dev_info(smu->adev->dev, "SkuReserved[6] = 0x%x\n", pptable->SkuReserved[6]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2279  	dev_info(smu->adev->dev, "SkuReserved[7] = 0x%x\n", pptable->SkuReserved[7]);
d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05 @2280  	dev_info(smu->adev->dev, "SkuReserved[8] = 0x%x\n", pptable->SkuReserved[8]);
^^^
Smatch thinks this array only has 8 elements.


d9811cfc0ebdf50 drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c Evan Quan    2020-06-05  2281  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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