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Diffstat (limited to 'kernel/params.c')
-rw-r--r--kernel/params.c62
1 files changed, 28 insertions, 34 deletions
diff --git a/kernel/params.c b/kernel/params.c
index f37d8263134..ed35345be53 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -85,11 +85,13 @@ bool parameq(const char *a, const char *b)
static int parse_one(char *param,
char *val,
+ const char *doing,
const struct kernel_param *params,
unsigned num_params,
s16 min_level,
s16 max_level,
- int (*handle_unknown)(char *param, char *val))
+ int (*handle_unknown)(char *param, char *val,
+ const char *doing))
{
unsigned int i;
int err;
@@ -104,8 +106,8 @@ static int parse_one(char *param,
if (!val && params[i].ops->set != param_set_bool
&& params[i].ops->set != param_set_bint)
return -EINVAL;
- pr_debug("They are equal! Calling %p\n",
- params[i].ops->set);
+ pr_debug("handling %s with %p\n", param,
+ params[i].ops->set);
mutex_lock(&param_lock);
err = params[i].ops->set(val, &params[i]);
mutex_unlock(&param_lock);
@@ -114,11 +116,11 @@ static int parse_one(char *param,
}
if (handle_unknown) {
- pr_debug("Unknown argument: calling %p\n", handle_unknown);
- return handle_unknown(param, val);
+ pr_debug("doing %s: %s='%s'\n", doing, param, val);
+ return handle_unknown(param, val, doing);
}
- pr_debug("Unknown argument `%s'\n", param);
+ pr_debug("Unknown argument '%s'\n", param);
return -ENOENT;
}
@@ -175,49 +177,47 @@ static char *next_arg(char *args, char **param, char **val)
}
/* Args looks like "foo=bar,bar2 baz=fuz wiz". */
-int parse_args(const char *name,
+int parse_args(const char *doing,
char *args,
const struct kernel_param *params,
unsigned num,
s16 min_level,
s16 max_level,
- int (*unknown)(char *param, char *val))
+ int (*unknown)(char *param, char *val, const char *doing))
{
char *param, *val;
- pr_debug("Parsing ARGS: %s\n", args);
-
/* Chew leading spaces */
args = skip_spaces(args);
+ if (*args)
+ pr_debug("doing %s, parsing ARGS: '%s'\n", doing, args);
+
while (*args) {
int ret;
int irq_was_disabled;
args = next_arg(args, &param, &val);
irq_was_disabled = irqs_disabled();
- ret = parse_one(param, val, params, num,
+ 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",
- name, 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",
- name, val ?: "", param);
+ 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",
- name, val ?: "", param);
+ pr_err("%s: `%s' invalid for parameter `%s'\n",
+ doing, val ?: "", param);
return ret;
}
}
@@ -263,8 +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;
}
@@ -400,8 +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, ",");
@@ -420,8 +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;
@@ -480,7 +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;
}
@@ -750,11 +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;
}