CC: [email protected]
BCC: [email protected]
CC: Junxiao Chang <[email protected]>

Hi Christian,

First bad commit (maybe != root cause):

tree:   https://github.com/intel/linux-intel-lts.git 5.15/linux
head:   7acd0be121091f12349a4dcefd2e6deee2e73946
commit: 2e4c0f14c46f4dcdeec66f40779cd8e9708e8dda [484/2399] drm/msm: allow 
compile_test on !ARM
:::::: branch date: 4 days ago
:::::: commit date: 9 weeks ago
config: xtensa-randconfig-m031-20220422 
(https://download.01.org/0day-ci/archive/20220423/[email protected]/config)
compiler: xtensa-linux-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>

New smatch warnings:
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c:112 dpu_rm_init() warn: passing zero to 
'PTR_ERR'
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c:281 _dpu_crtc_blend_setup_mixer() 
warn: inconsistent indenting

Old smatch warnings:
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c:141 dpu_rm_init() warn: passing zero to 
'PTR_ERR'
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c:159 dpu_rm_init() warn: passing zero to 
'PTR_ERR'
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c:183 dpu_rm_init() warn: passing zero to 
'PTR_ERR'
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c:200 dpu_rm_init() warn: passing zero to 
'PTR_ERR'
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c:217 dpu_rm_init() warn: passing zero to 
'PTR_ERR'
arch/xtensa/include/asm/thread_info.h:91 current_thread_info() warn: 
inconsistent indenting

vim +/PTR_ERR +112 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c

25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   81  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   82  int dpu_rm_init(struct dpu_rm 
*rm,
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   83                struct 
dpu_mdss_cfg *cat,
3763f1a5511005 Jeykumar Sankaran 2018-12-07   84                void __iomem 
*mmio)
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   85  {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   86        int rc, i;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   87  
3763f1a5511005 Jeykumar Sankaran 2018-12-07   88        if (!rm || !cat || 
!mmio) {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   89                
DPU_ERROR("invalid kms\n");
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   90                return -EINVAL;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   91        }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   92  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   93        /* Clear, setup lists */
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   94        memset(rm, 0, 
sizeof(*rm));
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   95  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   96        /* Interrogate HW 
catalog and create tracking items for hw blocks */
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27   97        for (i = 0; i < 
cat->mixer_count; i++) {
bb00a452d6f773 Drew Davenport    2020-02-19   98                struct 
dpu_hw_mixer *hw;
abda0d925f9c06 Stephen Boyd      2019-11-19   99                const struct 
dpu_lm_cfg *lm = &cat->mixer[i];
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  100  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  101                if 
(lm->pingpong == PINGPONG_MAX) {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  102                        
DPU_DEBUG("skip mixer %d without pingpong\n", lm->id);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  103                        
continue;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  104                }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  105  
bb00a452d6f773 Drew Davenport    2020-02-19  106                if (lm->id < 
LM_0 || lm->id >= LM_MAX) {
bb00a452d6f773 Drew Davenport    2020-02-19  107                        
DPU_ERROR("skip mixer %d with invalid id\n", lm->id);
bb00a452d6f773 Drew Davenport    2020-02-19  108                        
continue;
bb00a452d6f773 Drew Davenport    2020-02-19  109                }
bb00a452d6f773 Drew Davenport    2020-02-19  110                hw = 
dpu_hw_lm_init(lm->id, mmio, cat);
bb00a452d6f773 Drew Davenport    2020-02-19  111                if 
(IS_ERR_OR_NULL(hw)) {
bb00a452d6f773 Drew Davenport    2020-02-19 @112                        rc = 
PTR_ERR(hw);
bb00a452d6f773 Drew Davenport    2020-02-19  113                        
DPU_ERROR("failed lm object creation: err %d\n", rc);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  114                        goto 
fail;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  115                }
bb00a452d6f773 Drew Davenport    2020-02-19  116                
rm->mixer_blks[lm->id - LM_0] = &hw->base;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  117  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  118                if 
(!rm->lm_max_width) {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  119                        
rm->lm_max_width = lm->sblk->maxwidth;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  120                } else if 
(rm->lm_max_width != lm->sblk->maxwidth) {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  121                        /*
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  122                         * 
Don't expect to have hw where lm max widths differ.
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  123                         * If 
found, take the min.
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  124                         */
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  125                        
DPU_ERROR("unsupported: lm maxwidth differs\n");
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  126                        if 
(rm->lm_max_width > lm->sblk->maxwidth)
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  127                                
rm->lm_max_width = lm->sblk->maxwidth;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  128                }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  129        }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  130  
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  131        for (i = 0; i < 
cat->merge_3d_count; i++) {
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  132                struct 
dpu_hw_merge_3d *hw;
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  133                const struct 
dpu_merge_3d_cfg *merge_3d = &cat->merge_3d[i];
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  134  
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  135                if 
(merge_3d->id < MERGE_3D_0 || merge_3d->id >= MERGE_3D_MAX) {
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  136                        
DPU_ERROR("skip merge_3d %d with invalid id\n", merge_3d->id);
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  137                        
continue;
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  138                }
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  139                hw = 
dpu_hw_merge_3d_init(merge_3d->id, mmio, cat);
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  140                if 
(IS_ERR_OR_NULL(hw)) {
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  141                        rc = 
PTR_ERR(hw);
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  142                        
DPU_ERROR("failed merge_3d object creation: err %d\n",
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  143                                
rc);
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  144                        goto 
fail;
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  145                }
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  146                
rm->merge_3d_blks[merge_3d->id - MERGE_3D_0] = &hw->base;
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  147        }
4369c93cf36bc5 Dmitry Baryshkov  2020-10-22  148  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  149        for (i = 0; i < 
cat->pingpong_count; i++) {
bb00a452d6f773 Drew Davenport    2020-02-19  150                struct 
dpu_hw_pingpong *hw;
bb00a452d6f773 Drew Davenport    2020-02-19  151                const struct 
dpu_pingpong_cfg *pp = &cat->pingpong[i];
bb00a452d6f773 Drew Davenport    2020-02-19  152  
bb00a452d6f773 Drew Davenport    2020-02-19  153                if (pp->id < 
PINGPONG_0 || pp->id >= PINGPONG_MAX) {
bb00a452d6f773 Drew Davenport    2020-02-19  154                        
DPU_ERROR("skip pingpong %d with invalid id\n", pp->id);
bb00a452d6f773 Drew Davenport    2020-02-19  155                        
continue;
bb00a452d6f773 Drew Davenport    2020-02-19  156                }
bb00a452d6f773 Drew Davenport    2020-02-19  157                hw = 
dpu_hw_pingpong_init(pp->id, mmio, cat);
bb00a452d6f773 Drew Davenport    2020-02-19  158                if 
(IS_ERR_OR_NULL(hw)) {
bb00a452d6f773 Drew Davenport    2020-02-19  159                        rc = 
PTR_ERR(hw);
bb00a452d6f773 Drew Davenport    2020-02-19  160                        
DPU_ERROR("failed pingpong object creation: err %d\n",
bb00a452d6f773 Drew Davenport    2020-02-19  161                                
rc);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  162                        goto 
fail;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  163                }
3e79527a33a83b Dmitry Baryshkov  2020-10-22  164                if 
(pp->merge_3d && pp->merge_3d < MERGE_3D_MAX)
dfa35bac99305a Dmitry Baryshkov  2021-05-15  165                        
hw->merge_3d = to_dpu_hw_merge_3d(rm->merge_3d_blks[pp->merge_3d - MERGE_3D_0]);
bb00a452d6f773 Drew Davenport    2020-02-19  166                
rm->pingpong_blks[pp->id - PINGPONG_0] = &hw->base;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  167        }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  168  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  169        for (i = 0; i < 
cat->intf_count; i++) {
bb00a452d6f773 Drew Davenport    2020-02-19  170                struct 
dpu_hw_intf *hw;
bb00a452d6f773 Drew Davenport    2020-02-19  171                const struct 
dpu_intf_cfg *intf = &cat->intf[i];
bb00a452d6f773 Drew Davenport    2020-02-19  172  
bb00a452d6f773 Drew Davenport    2020-02-19  173                if (intf->type 
== INTF_NONE) {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  174                        
DPU_DEBUG("skip intf %d with type none\n", i);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  175                        
continue;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  176                }
bb00a452d6f773 Drew Davenport    2020-02-19  177                if (intf->id < 
INTF_0 || intf->id >= INTF_MAX) {
bb00a452d6f773 Drew Davenport    2020-02-19  178                        
DPU_ERROR("skip intf %d with invalid id\n", intf->id);
bb00a452d6f773 Drew Davenport    2020-02-19  179                        
continue;
bb00a452d6f773 Drew Davenport    2020-02-19  180                }
bb00a452d6f773 Drew Davenport    2020-02-19  181                hw = 
dpu_hw_intf_init(intf->id, mmio, cat);
bb00a452d6f773 Drew Davenport    2020-02-19  182                if 
(IS_ERR_OR_NULL(hw)) {
bb00a452d6f773 Drew Davenport    2020-02-19  183                        rc = 
PTR_ERR(hw);
bb00a452d6f773 Drew Davenport    2020-02-19  184                        
DPU_ERROR("failed intf object creation: err %d\n", rc);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  185                        goto 
fail;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  186                }
bb00a452d6f773 Drew Davenport    2020-02-19  187                
rm->intf_blks[intf->id - INTF_0] = &hw->base;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  188        }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  189  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  190        for (i = 0; i < 
cat->ctl_count; i++) {
bb00a452d6f773 Drew Davenport    2020-02-19  191                struct 
dpu_hw_ctl *hw;
bb00a452d6f773 Drew Davenport    2020-02-19  192                const struct 
dpu_ctl_cfg *ctl = &cat->ctl[i];
bb00a452d6f773 Drew Davenport    2020-02-19  193  
bb00a452d6f773 Drew Davenport    2020-02-19  194                if (ctl->id < 
CTL_0 || ctl->id >= CTL_MAX) {
bb00a452d6f773 Drew Davenport    2020-02-19  195                        
DPU_ERROR("skip ctl %d with invalid id\n", ctl->id);
bb00a452d6f773 Drew Davenport    2020-02-19  196                        
continue;
bb00a452d6f773 Drew Davenport    2020-02-19  197                }
bb00a452d6f773 Drew Davenport    2020-02-19  198                hw = 
dpu_hw_ctl_init(ctl->id, mmio, cat);
bb00a452d6f773 Drew Davenport    2020-02-19  199                if 
(IS_ERR_OR_NULL(hw)) {
bb00a452d6f773 Drew Davenport    2020-02-19  200                        rc = 
PTR_ERR(hw);
bb00a452d6f773 Drew Davenport    2020-02-19  201                        
DPU_ERROR("failed ctl object creation: err %d\n", rc);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  202                        goto 
fail;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  203                }
bb00a452d6f773 Drew Davenport    2020-02-19  204                
rm->ctl_blks[ctl->id - CTL_0] = &hw->base;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  205        }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  206  
e47616df008b10 Kalyan Thota      2020-03-24  207        for (i = 0; i < 
cat->dspp_count; i++) {
e47616df008b10 Kalyan Thota      2020-03-24  208                struct 
dpu_hw_dspp *hw;
e47616df008b10 Kalyan Thota      2020-03-24  209                const struct 
dpu_dspp_cfg *dspp = &cat->dspp[i];
e47616df008b10 Kalyan Thota      2020-03-24  210  
e47616df008b10 Kalyan Thota      2020-03-24  211                if (dspp->id < 
DSPP_0 || dspp->id >= DSPP_MAX) {
e47616df008b10 Kalyan Thota      2020-03-24  212                        
DPU_ERROR("skip dspp %d with invalid id\n", dspp->id);
e47616df008b10 Kalyan Thota      2020-03-24  213                        
continue;
e47616df008b10 Kalyan Thota      2020-03-24  214                }
e47616df008b10 Kalyan Thota      2020-03-24  215                hw = 
dpu_hw_dspp_init(dspp->id, mmio, cat);
e47616df008b10 Kalyan Thota      2020-03-24  216                if 
(IS_ERR_OR_NULL(hw)) {
e47616df008b10 Kalyan Thota      2020-03-24  217                        rc = 
PTR_ERR(hw);
e47616df008b10 Kalyan Thota      2020-03-24  218                        
DPU_ERROR("failed dspp object creation: err %d\n", rc);
e47616df008b10 Kalyan Thota      2020-03-24  219                        goto 
fail;
e47616df008b10 Kalyan Thota      2020-03-24  220                }
e47616df008b10 Kalyan Thota      2020-03-24  221                
rm->dspp_blks[dspp->id - DSPP_0] = &hw->base;
e47616df008b10 Kalyan Thota      2020-03-24  222        }
e47616df008b10 Kalyan Thota      2020-03-24  223  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  224        return 0;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  225  
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  226  fail:
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  227        dpu_rm_destroy(rm);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  228  
bb00a452d6f773 Drew Davenport    2020-02-19  229        return rc ? rc : 
-EFAULT;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  230  }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27  231  

:::::: The code at line 112 was first introduced by commit
:::::: bb00a452d6f77391441ef7df48f7115dd459cd2f drm/msm/dpu: Refactor resource 
manager

:::::: TO: Drew Davenport <[email protected]>
:::::: CC: Rob Clark <[email protected]>

-- 
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