linux-kernel - [PATCH v2] usb: core: Remove unneeded #ifdef and associated dead code

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Date:	Sun,  8 Feb 2015 20:36:38 +0100
From:	Andreas Ruprecht <rupran@...server.de>
To:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dan Williams <dan.j.williams@...el.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Andreas Ruprecht <rupran@...server.de>
Subject: [PATCH v2] usb: core: Remove unneeded #ifdef and associated dead code

In commit ceb6c9c862c8 ("USB / PM: Drop CONFIG_PM_RUNTIME from the
USB core"), all occurrences of CONFIG_PM_RUNTIME in the USB core
code were replaced by CONFIG_PM. This created the following structure
of #ifdef blocks in drivers/usb/core/hub.c:

 [...]
 #ifdef CONFIG_PM
 #ifdef CONFIG_PM
 /* always on / undead */
 #else
 /* dead */
 #endif
 [...]

This patch removes unnecessary inner "#ifdef CONFIG_PM" as well as
the corresponding dead #else block. This inconsistency was found using
the undertaker-checkpatch tool.

Signed-off-by: Andreas Ruprecht <rupran@...server.de>
---
Changes to v1:
    - Better description of what was removed in the commit message

 drivers/usb/core/hub.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 3e9c4d4..c362bbc 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3452,8 +3452,6 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
 	return status;
 }
 
-#ifdef	CONFIG_PM
-
 int usb_remote_wakeup(struct usb_device *udev)
 {
 	int	status = 0;
@@ -3512,16 +3510,6 @@ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
 	return connect_change;
 }
 
-#else
-
-static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
-		u16 portstatus, u16 portchange)
-{
-	return 0;
-}
-
-#endif
-
 static int check_ports_changed(struct usb_hub *hub)
 {
 	int port1;
-- 
1.9.1

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