[flashrom-gerrit] Change in flashrom[master]: dummyflasher.c: Factor out global state

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/45230 )

Change subject: dummyflasher.c: Factor out global state
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Patch Set 1:

(1 comment)

https://review.coreboot.org/c/flashrom/+/45230/1/dummyflasher.c 
File dummyflasher.c:

https://review.coreboot.org/c/flashrom/+/45230/1/dummyflasher.c@922 
PS1, Line 922:  (struct emu_data *)flash->mst->par.data
> As we have the block: […]

For clarity,

```
struct emu_data *emu_data get_data_from_context(struct flashctx *ctx)
{
   if (dummy_buses_supported & (BUS_PARALLEL | BUS_LPC | BUS_FWH))
      return (struct emu_data *)flash->mst->par.data;
   else if (dummy_buses_supported & BUS_SPI)
      return (struct emu_data *)flash->mst->spi.data;

return NULL; /* buses was set to BUS_NONE. */
}
```