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The numa_slit variable used by node_distance is available to a module as long as it is linked at compile-time. However, it is not available to loadable modules. Leading to errors such as: ERROR: "numa_slit" [drivers/nvme/host/nvme-core.ko] undefined! The error above is caused by the nvme multipath code that makes use of node_distance for its path calculation. When the patch was added, the lightnvm subsystem would select nvme and always compile it in, leading to the node_distance call to always succeed. However, when this requirement was removed, nvme could be compiled in as a module, which exposed this bug. This patch extracts node_distance to a function and exports it. Since ACPI is depending on node_distance being a simple lookup to numa_slit, the previous behavior is exposed as slit_distance and its users updated. Fixes: |
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| dig | ||
| hp | ||
| include | ||
| kernel | ||
| lib | ||
| mm | ||
| oprofile | ||
| pci | ||
| scripts | ||
| sn | ||
| uv | ||
| install.sh | ||
| Kconfig | ||
| Kconfig.debug | ||
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| module.lds | ||