params: replace printk(KERN_<LVL>...) with pr_<lvl>(...)

I left 1 printk which uses __FILE__, __LINE__ explicitly, which should
not be subject to generic preferences expressed via pr_fmt().

+ tweaks suggested by Joe Perches:
- add doing to irq-enabled warning, like others.  It wont happen often..
- change sysfs failure crit, not just err, make it 1 line in logs.
- coalese 2 format fragments into 1 >80 char line

cc: Joe Perches <joe@perches.com>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

kernel/params.c

@@ -201,25 +201,22 @@ int parse_args(const char *doing,
 		irq_was_disabled = irqs_disabled();
 		ret = parse_one(param, val, doing, params, num,
 				min_level, max_level, unknown);
-		if (irq_was_disabled && !irqs_disabled()) {
-			printk(KERN_WARNING "parse_args(): option '%s' enabled "
-					"irq's!\n", param);
-		}
+		if (irq_was_disabled && !irqs_disabled())
+			pr_warn("%s: option '%s' enabled irq's!\n",
+				doing, param);
+
 		switch (ret) {
 		case -ENOENT:
-			printk(KERN_ERR "%s: Unknown parameter `%s'\n",
-			       doing, param);
+			pr_err("%s: Unknown parameter `%s'\n", doing, param);
 			return ret;
 		case -ENOSPC:
-			printk(KERN_ERR
-			       "%s: `%s' too large for parameter `%s'\n",
+			pr_err("%s: `%s' too large for parameter `%s'\n",
 			       doing, val ?: "", param);
 			return ret;
 		case 0:
 			break;
 		default:
-			printk(KERN_ERR
-			       "%s: `%s' invalid for parameter `%s'\n",
+			pr_err("%s: `%s' invalid for parameter `%s'\n",
 			       doing, val ?: "", param);
 			return ret;
 		}
@@ -266,8 +263,7 @@ STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, strict_strtoul);
 int param_set_charp(const char *val, const struct kernel_param *kp)
 {
 	if (strlen(val) > 1024) {
-		printk(KERN_ERR "%s: string parameter too long\n",
-		       kp->name);
+		pr_err("%s: string parameter too long\n", kp->name);
 		return -ENOSPC;
 	}
 
@@ -403,8 +399,7 @@ static int param_array(const char *name,
 		int len;
 
 		if (*num == max) {
-			printk(KERN_ERR "%s: can only take %i arguments\n",
-			       name, max);
+			pr_err("%s: can only take %i arguments\n", name, max);
 			return -EINVAL;
 		}
 		len = strcspn(val, ",");
@@ -423,8 +418,7 @@ static int param_array(const char *name,
 	} while (save == ',');
 
 	if (*num < min) {
-		printk(KERN_ERR "%s: needs at least %i arguments\n",
-		       name, min);
+		pr_err("%s: needs at least %i arguments\n", name, min);
 		return -EINVAL;
 	}
 	return 0;
@@ -483,7 +477,7 @@ int param_set_copystring(const char *val, const struct kernel_param *kp)
 	const struct kparam_string *kps = kp->str;
 
 	if (strlen(val)+1 > kps->maxlen) {
-		printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
+		pr_err("%s: string doesn't fit in %u chars.\n",
 		       kp->name, kps->maxlen-1);
 		return -ENOSPC;
 	}
@@ -753,11 +747,8 @@ static struct module_kobject * __init locate_module_kobject(const char *name)
 #endif
 		if (err) {
 			kobject_put(&mk->kobj);
-			printk(KERN_ERR
-				"Module '%s' failed add to sysfs, error number %d\n",
+			pr_crit("Adding module '%s' to sysfs failed (%d), the system may be unstable.\n",
 				name, err);
-			printk(KERN_ERR
-				"The system will be unstable now.\n");
 			return NULL;
 		}