From: Théo Lebrun <theo.lebrun@bootlin.com>
Date: Wed, 5 Feb 2025 17:36:49 +0000 (+0100)
Subject: usb: cdns3: call cdns_power_is_lost() only once in cdns_resume()
X-Git-Tag: v6.15-rc1~46^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=17c6526b333cfd89a4c888a6f7c876c8c326e5ae;p=thirdparty%2Fkernel%2Flinux.git

usb: cdns3: call cdns_power_is_lost() only once in cdns_resume()

cdns_power_is_lost() does a register read.
Call it only once rather than twice.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-4-13658a271c3c@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 98980a23e1c22..1243a5cea91b5 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -524,11 +524,12 @@ EXPORT_SYMBOL_GPL(cdns_suspend);
 
 int cdns_resume(struct cdns *cdns)
 {
+	bool power_lost = cdns_power_is_lost(cdns);
 	enum usb_role real_role;
 	bool role_changed = false;
 	int ret = 0;
 
-	if (cdns_power_is_lost(cdns)) {
+	if (power_lost) {
 		if (!cdns->role_sw) {
 			real_role = cdns_hw_role_state_machine(cdns);
 			if (real_role != cdns->role) {
@@ -551,7 +552,7 @@ int cdns_resume(struct cdns *cdns)
 	}
 
 	if (cdns->roles[cdns->role]->resume)
-		cdns->roles[cdns->role]->resume(cdns, cdns_power_is_lost(cdns));
+		cdns->roles[cdns->role]->resume(cdns, power_lost);
 
 	return 0;
 }