> On May 16, 2021, at 1:06 PM, matthew green <m...@eterna.com.au> wrote: > >> Modified Files: >> src/sys/dev/i2c [thorpej-i2c-spi-conf]: spdmem_i2c.c >> >> Log Message: >> The last change had an unfortunate side-effect on empty DIMM slots, so >> roll that back. Instead, if we used direct config, then probe for the >> module in the attach routine and report if the module is not present, >> rather than assuming that it is. > > this seems odd to me. > > if we're using direct config, shouldn't match() be fully > able to determine present or not, avoiding having to have > an attach() that fake-fails?
The problem is if a device tree has a node for a SPD DIMM, but the DIMM *isn’t actually present* (i.e. the node is for “DIMM might live here, go check!”). Returning “no match” in this situation would result in a “… not configured” message for a non-existent DIMM. > > thanks. > > > .mrg. -- thorpej
