linux-kernel - [PATCH 17/36] ip2: Add module parameter.

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Date:	Tue,  2 Mar 2010 15:36:24 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Rakib Mullick <rakib.mullick@...il.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 17/36] ip2: Add module parameter.

From: Rakib Mullick <rakib.mullick@...il.com>

Stephen Rothwell found the following warning (x86_64 allmodconfig):

drivers/char/ip2/ip2main.c:511: warning: 'ip2_setup' defined but not used

This patch adds module parameter to fix the above warning.


Signed-off-by: Rakib Mullick <rakib.mullick@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/char/ip2/ip2main.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 2913d05..c2c915a 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -208,6 +208,7 @@ static int DumpFifoBuffer( char __user *, int);
 
 static void ip2_init_board(int, const struct firmware *);
 static unsigned short find_eisa_board(int);
+static int ip2_setup(char *str);
 
 /***************/
 /* Static Data */
@@ -285,7 +286,10 @@ MODULE_AUTHOR("Doug McNash");
 MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
 MODULE_LICENSE("GPL");
 
+#define	MAX_CMD_STR	50
+
 static int poll_only;
+static char cmd[MAX_CMD_STR];
 
 static int Eisa_irq;
 static int Eisa_slot;
@@ -309,6 +313,8 @@ module_param_array(io, int, NULL, 0);
 MODULE_PARM_DESC(io, "I/O ports for IntelliPort Cards");
 module_param(poll_only, bool, 0);
 MODULE_PARM_DESC(poll_only, "Do not use card interrupts");
+module_param_string(ip2, cmd, MAX_CMD_STR, 0);
+MODULE_PARM_DESC(ip2, "Contains module parameter passed with 'ip2='");
 
 /* for sysfs class support */
 static struct class *ip2_class;
@@ -538,12 +544,19 @@ static int __init ip2_loadmain(void)
 	i2eBordStrPtr pB = NULL;
 	int rc = -1;
 	const struct firmware *fw = NULL;
+	char *str;
+
+	str = cmd;
 
 	if (poll_only) {
 		/* Hard lock the interrupts to zero */
 		irq[0] = irq[1] = irq[2] = irq[3] = poll_only = 0;
 	}
 
+	/* Check module parameter with 'ip2=' has been passed or not */
+	if (!poll_only && (!strncmp(str, "ip2=", 4)))
+		ip2_setup(str);
+
 	ip2trace(ITRC_NO_PORT, ITRC_INIT, ITRC_ENTER, 0);
 
 	/* process command line arguments to modprobe or
-- 
1.7.0.1

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