Re: [PATCH 5/6] of: add infra to parse iommu-map per IOMMU cell count

[Charan Teja Kalla]

On 11/4/2025 4:16 PM, kernel test robot wrote:
>>> drivers/of/base.c:2127:6: warning: variable 'legacy_iommu_cells' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
>     2127 |         if (map_len % 4 != 0)
>          |             ^~~~~~~~~~~~~~~~
>    drivers/of/base.c:2130:9: note: uninitialized use occurs here
>     2130 |         return legacy_iommu_cells ? : of_iommu_map_id_actual_cell_count(map, map_len, cells);
>          |                ^~~~~~~~~~~~~~~~~~
>    drivers/of/base.c:2127:2: note: remove the 'if' if its condition is always true
>     2127 |         if (map_len % 4 != 0)
>          |         ^~~~~~~~~~~~~~~~~~~~~
>     2128 |                 legacy_iommu_cells = of_iommu_map_id_legacy_cell_count(map, map_len);
>    drivers/of/base.c:2125:24: note: initialize the variable 'legacy_iommu_cells' to silence this warning
>     2125 |         u32 legacy_iommu_cells;
>          |                               ^
>          |                                = 0
>    1 warning generated.
Will wait for additional comments and take care of this in the next spin.