linux-kernel - [RFC PATCH 1/4] pciehp: Make check_link

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Message-ID: <528BECFF.7000900@gmail.com>
Date:	Tue, 19 Nov 2013 14:58:07 -0800
From:	Rajat Jain <rajatjain.linux@...il.com>
To:	Linux-PCI <linux-pci@...r.kernel.org>,
	Linux-hotplug <linux-hotplug@...r.kernel.org>,
	linux-kernel@...r.kernel.org
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Yijing Wang <wangyijing@...wei.com>,
	Paul Bolle <pebolle@...cali.nl>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Rajat Jain <rajatjain.linux@...il.com>,
	Rajat Jain <rajatjain@...iper.net>,
	Guenter Roeck <groeck@...iper.net>
Subject: [RFC PATCH 1/4] pciehp: Make check_link_active() non-static


check_link_active() functionality needs to be used by subsequent patches
(that introduce link state change based hotplug). Thus make the function
non-static, and rename it to pciehp_check_link_active() so as to be
consistent with other non-static functions.

Signed-off-by: Rajat Jain <rajatjain@...iper.net>
---
 drivers/pci/hotplug/pciehp.h     |    1 +
 drivers/pci/hotplug/pciehp_hpc.c |    6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 541bbe6..fc322ed 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -154,6 +154,7 @@ void pciehp_green_led_on(struct slot *slot);
 void pciehp_green_led_off(struct slot *slot);
 void pciehp_green_led_blink(struct slot *slot);
 int pciehp_check_link_status(struct controller *ctrl);
+bool pciehp_check_link_active(struct controller *ctrl);
 void pciehp_release_ctrl(struct controller *ctrl);
 int pciehp_reset_slot(struct slot *slot, int probe);
 
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 51f56ef..3a5eee7 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -241,7 +241,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
 	return retval;
 }
 
-static bool check_link_active(struct controller *ctrl)
+bool pciehp_check_link_active(struct controller *ctrl)
 {
 	bool ret = false;
 	u16 lnk_status;
@@ -261,12 +261,12 @@ static void __pcie_wait_link_active(struct controller *ctrl, bool active)
 {
 	int timeout = 1000;
 
-	if (check_link_active(ctrl) == active)
+	if (pciehp_check_link_active(ctrl) == active)
 		return;
 	while (timeout > 0) {
 		msleep(10);
 		timeout -= 10;
-		if (check_link_active(ctrl) == active)
+		if (pciehp_check_link_active(ctrl) == active)
 			return;
 	}
 	ctrl_dbg(ctrl, "Data Link Layer Link Active not %s in 1000 msec\n",
-- 
1.7.9.5

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