linux-kernel - [PATCH v3 1/8] pciehp: Make check_link

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Message-ID: <52B0AE88.8090203@gmail.com>
Date:	Tue, 17 Dec 2013 12:05:28 -0800
From:	Rajat Jain <rajatjain.linux@...il.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Yijing Wang <wangyijing@...wei.com>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, Yinghai Lu <yhlu.kernel@...il.com>
CC:	Guenter Roeck <groeck@...iper.net>,
	Rajat Jain <rajatjain@...iper.net>,
	Rajat Jain <rajatxjain@...il.com>
Subject: [PATCH v3 1/8] 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>
Signed-off-by: Guenter Roeck <groeck@...iper.net>
---
v3: Same as v2, only numbering changed from [1/4] to [1/8]
v2: Same as v1, dropped the "RFC" from subject, and added Guenter's signature
v1: Initial patch

 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 21e865d..4ffcf6b 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 3eea3fd..f8c7a5f 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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