linux-kernel - [PATCH v5 1/5] dmi: remove const from return of dmi_find

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Message-Id: <1495050984-5602-2-git-send-email-minyard@acm.org>
Date:   Wed, 17 May 2017 14:56:20 -0500
From:   minyard@....org
To:     Jean Delvare <jdelvare@...e.de>
Cc:     openipmi-developer@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Andy Lutomirski <luto@...nel.org>,
        Corey Minyard <cminyard@...sta.com>
Subject: [PATCH v5 1/5] dmi: remove const from return of dmi_find_device

From: Corey Minyard <cminyard@...sta.com>

A fwnode_handle is being added to dmi_device, and that will need to
be updated.  So remove the const.

Signed-off-by: Corey Minyard <cminyard@...sta.com>
Cc: Jean Delvare <jdelvare@...e.de>
Cc: Andy Lutomirski <luto@...nel.org>
Tested-by: Andy Lutomirski <luto@...nel.org>
---
 drivers/firmware/dmi_scan.c | 11 +++++------
 include/linux/dmi.h         | 10 +++++-----
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 54be60e..a29e96a 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -896,14 +896,13 @@ EXPORT_SYMBOL(dmi_name_in_vendors);
  *	A new search is initiated by passing %NULL as the @from argument.
  *	If @from is not %NULL, searches continue from next device.
  */
-const struct dmi_device *dmi_find_device(int type, const char *name,
-				    const struct dmi_device *from)
+struct dmi_device *dmi_find_device(int type, const char *name,
+				   const struct dmi_device *from)
 {
-	const struct list_head *head = from ? &from->list : &dmi_devices;
-	struct list_head *d;
+	struct list_head *d = from ? from->list.next : dmi_devices.next;
 
-	for (d = head->next; d != &dmi_devices; d = d->next) {
-		const struct dmi_device *dev =
+	for (; d != &dmi_devices; d = d->next) {
+		struct dmi_device *dev =
 			list_entry(d, struct dmi_device, list);
 
 		if (((type == DMI_DEV_TYPE_ANY) || (dev->type == type)) &&
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 5e9c74c..a930a4d 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -98,9 +98,9 @@ struct dmi_dev_onboard {
 extern struct kobject *dmi_kobj;
 extern int dmi_check_system(const struct dmi_system_id *list);
 const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list);
-extern const char * dmi_get_system_info(int field);
-extern const struct dmi_device * dmi_find_device(int type, const char *name,
-	const struct dmi_device *from);
+extern const char *dmi_get_system_info(int field);
+extern struct dmi_device *dmi_find_device(int type, const char *name,
+	 const struct dmi_device *from);
 extern void dmi_scan_machine(void);
 extern void dmi_memdev_walk(void);
 extern void dmi_set_dump_stack_arch_desc(void);
@@ -116,8 +116,8 @@ extern void dmi_memdev_name(u16 handle, const char **bank, const char **device);
 #else
 
 static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; }
-static inline const char * dmi_get_system_info(int field) { return NULL; }
-static inline const struct dmi_device * dmi_find_device(int type, const char *name,
+static inline const char *dmi_get_system_info(int field) { return NULL; }
+static inline struct dmi_device *dmi_find_device(int type, const char *name,
 	const struct dmi_device *from) { return NULL; }
 static inline void dmi_scan_machine(void) { return; }
 static inline void dmi_memdev_walk(void) { }
-- 
2.7.4