How does revaluation of inventory affects the cashflow statement?

How does revaluation of inventory affects the cashflow statement?
Revaluation of inventory has no net effect on the cashflow statement as there has been no movement in cash.

If the value of inventory is increased, the debit entry to inventory revaluation is negated by the credit entry to the revaluation reserve / shareholders' funds.

If the value of inventory is decreased (more common), the credit entry to inventory writedown is negated by the debit entry as an expense or cost of sales item through the "statement of financial position" to retained earnings / shareholders' funds.

Treatment and disclosure of course would vary depending on the materiality, timing, accounting standards applicable to the jurisdiction and legislative / regulatory requirements with which the entity is obliged to comply.