John Schneider tried to fix his pass-rush mess by the trade deadline Tuesday, but he couldn’t add another guy, so Carlos Dunlap will shoulder the load as he tries to elevate that part of Seattle’s game.

It starts this week in Buffalo, and Pete Carroll said he expects Dunlap to jump immediately into the fray.

Schneider also reportedly tried to add Aldon Smith from Dallas, and you can bet he called on Atlanta’s Takk McKinley and maybe the Jets’ Jordan Jenkins as he looked for cheap help along the D-line. Dunlap was the only guy he could snag for the price he was willing to pay.

Schneider also got Dunlap to take about $2.9 million less than he was due, with that balance going to a 2021 roster bonus instead. That avoided having to restructure Russell Wilson’s salary.

Dunlap is scheduled to count $14.1 million next year, but it’s highly doubtful he will end up playing on that number — not if the salary cap drops to $175 million. Seattle either will let him go or extend him.

Hopefully he is worth the latter and the sides can agree on a deal that would keep the 31-year-old for a couple more years. As he said Wednesday, “I’ve got plenty of years left.”

He’s got three months to prove it.