bond_extra: TxDescriptor<{
    max_additional: bigint;
}>

Add some extra amount that have appeared in the stash free_balance into the balance up for staking.

The dispatch origin for this call must be Signed by the stash, not the controller.

Use this if there are additional funds in your stash account that you wish to bond. Unlike bond or unbond this function does not impose any limitation on the amount that can be added.

Emits Bonded.

  • Independent of the arguments. Insignificant complexity.
  • O(1).