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authorRusty Russell <rusty@rustcorp.com.au>2010-08-12 09:04:37 +0400
committerRusty Russell <rusty@rustcorp.com.au>2010-08-11 17:34:37 +0400
commitc8ba6c52e19c13c2b6fb9ca9e5188799c753914c (patch)
treeaf3d9cd6fd8082421013f59f6d436ad63f7fc614 /drivers/char
parent886275ce41a9751117367fb387ed171049eb6148 (diff)
downloadlinux-c8ba6c52e19c13c2b6fb9ca9e5188799c753914c.tar.xz
param: update drivers/char/ipmi/ipmi_watchdog.c to new scheme
This is one of the most interesting users of module parameters in the tree, so weaning it off the old-style non-const module_param_call scheme is a useful exercise. I was confused by set_param_int/get_param_int (vs. the normal param_set_int and param_get_int), so I renamed set_param_int to set_param_timeout, and re-used param_get_int directly instead of get_param_int. I also implemented param_check_wdog_ifnum and param_check_timeout, so now the ifnum_to_use and timeout/pretimeout parameters can just use plain module_param(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Corey Minyard <minyard@acm.org> Cc: openipmi-developer@lists.sourceforge.net
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/ipmi/ipmi_watchdog.c42
1 files changed, 27 insertions, 15 deletions
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 82bcdb262a3a..654d566ca57c 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -196,7 +196,7 @@ static void ipmi_unregister_watchdog(int ipmi_intf);
*/
static int start_now;
-static int set_param_int(const char *val, struct kernel_param *kp)
+static int set_param_timeout(const char *val, const struct kernel_param *kp)
{
char *endp;
int l;
@@ -215,10 +215,11 @@ static int set_param_int(const char *val, struct kernel_param *kp)
return rv;
}
-static int get_param_int(char *buffer, struct kernel_param *kp)
-{
- return sprintf(buffer, "%i", *((int *)kp->arg));
-}
+static struct kernel_param_ops param_ops_timeout = {
+ .set = set_param_timeout,
+ .get = param_get_int,
+};
+#define param_check_timeout param_check_int
typedef int (*action_fn)(const char *intval, char *outval);
@@ -227,7 +228,7 @@ static int preaction_op(const char *inval, char *outval);
static int preop_op(const char *inval, char *outval);
static void check_parms(void);
-static int set_param_str(const char *val, struct kernel_param *kp)
+static int set_param_str(const char *val, const struct kernel_param *kp)
{
action_fn fn = (action_fn) kp->arg;
int rv = 0;
@@ -251,7 +252,7 @@ static int set_param_str(const char *val, struct kernel_param *kp)
return rv;
}
-static int get_param_str(char *buffer, struct kernel_param *kp)
+static int get_param_str(char *buffer, const struct kernel_param *kp)
{
action_fn fn = (action_fn) kp->arg;
int rv;
@@ -263,7 +264,7 @@ static int get_param_str(char *buffer, struct kernel_param *kp)
}
-static int set_param_wdog_ifnum(const char *val, struct kernel_param *kp)
+static int set_param_wdog_ifnum(const char *val, const struct kernel_param *kp)
{
int rv = param_set_int(val, kp);
if (rv)
@@ -276,27 +277,38 @@ static int set_param_wdog_ifnum(const char *val, struct kernel_param *kp)
return 0;
}
-module_param_call(ifnum_to_use, set_param_wdog_ifnum, get_param_int,
- &ifnum_to_use, 0644);
+static struct kernel_param_ops param_ops_wdog_ifnum = {
+ .set = set_param_wdog_ifnum,
+ .get = param_get_int,
+};
+
+#define param_check_wdog_ifnum param_check_int
+
+static struct kernel_param_ops param_ops_str = {
+ .set = set_param_str,
+ .get = get_param_str,
+};
+
+module_param(ifnum_to_use, wdog_ifnum, 0644);
MODULE_PARM_DESC(ifnum_to_use, "The interface number to use for the watchdog "
"timer. Setting to -1 defaults to the first registered "
"interface");
-module_param_call(timeout, set_param_int, get_param_int, &timeout, 0644);
+module_param(timeout, timeout, 0644);
MODULE_PARM_DESC(timeout, "Timeout value in seconds.");
-module_param_call(pretimeout, set_param_int, get_param_int, &pretimeout, 0644);
+module_param(pretimeout, timeout, 0644);
MODULE_PARM_DESC(pretimeout, "Pretimeout value in seconds.");
-module_param_call(action, set_param_str, get_param_str, action_op, 0644);
+module_param_cb(action, &param_ops_str, action_op, 0644);
MODULE_PARM_DESC(action, "Timeout action. One of: "
"reset, none, power_cycle, power_off.");
-module_param_call(preaction, set_param_str, get_param_str, preaction_op, 0644);
+module_param_cb(preaction, &param_ops_str, preaction_op, 0644);
MODULE_PARM_DESC(preaction, "Pretimeout action. One of: "
"pre_none, pre_smi, pre_nmi, pre_int.");
-module_param_call(preop, set_param_str, get_param_str, preop_op, 0644);
+module_param_cb(preop, &param_ops_str, preop_op, 0644);
MODULE_PARM_DESC(preop, "Pretimeout driver operation. One of: "
"preop_none, preop_panic, preop_give_data.");