iwlegacy: collapse wrapper for pcie_capability_read_word()

il_pcie_link_ctl() has only one call site and no longer provides any useful
abstraction, so collapse it into the caller.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>

drivers/net/wireless/iwlegacy/common.c

@@ -1183,8 +1183,9 @@ EXPORT_SYMBOL(il_power_update_mode);
 void
 il_power_initialize(struct il_priv *il)
 {
-	u16 lctl = il_pcie_link_ctl(il);
+	u16 lctl;
 
+	pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &lctl);
 	il->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
 
 	il->power_data.debug_sleep_level_override = -1;
@@ -4233,7 +4234,7 @@ il_apm_init(struct il_priv *il)
 	 *    power savings, even without L1.
 	 */
 	if (il->cfg->set_l0s) {
-		lctl = il_pcie_link_ctl(il);
+		pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &lctl);
 		if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
 		    PCI_CFG_LINK_CTRL_VAL_L1_EN) {
 			/* L1-ASPM enabled; disable(!) L0S  */

drivers/net/wireless/iwlegacy/common.h

@@ -1829,14 +1829,6 @@ int il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd);
  * PCI						     *
  *****************************************************/
 
-static inline u16
-il_pcie_link_ctl(struct il_priv *il)
-{
-	u16 pci_lnk_ctl;
-	pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &pci_lnk_ctl);
-	return pci_lnk_ctl;
-}
-
 void il_bg_watchdog(unsigned long data);
 u32 il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval);
 __le32 il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,