PCI: ls-gen4: Use to_delayed_work()

Use to_delayed_work() instead of open-coding it.

Signed-off-by: Chen Ni <[email protected]>
Signed-off-by: Manivannan Sadhasivam <[email protected]>
Link: https://patch.msgid.link/[email protected]

Author: Chen Ni

drivers/pci/controller/mobiveil/pcie-layerscape-gen4.c

@@ -174,8 +174,7 @@ static int ls_g4_pcie_interrupt_init(struct mobiveil_pcie *mv_pci)
 
 static void ls_g4_pcie_reset(struct work_struct *work)
 {
-	struct delayed_work *dwork = container_of(work, struct delayed_work,
-						  work);
+	struct delayed_work *dwork = to_delayed_work(work);
 	struct ls_g4_pcie *pcie = container_of(dwork, struct ls_g4_pcie, dwork);
 	struct mobiveil_pcie *mv_pci = &pcie->pci;
 	u16 ctrl;