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authorJan Beulich <jbeulich@novell.com>2007-10-17 10:29:34 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 19:42:56 +0400
commit22e48eaf587d044ba311a73c6fe0d0deaa8fdb63 (patch)
tree8407d8f3f9a69b275e9008249e678499ce92253d /kernel
parentd5aa0daf6d9f327a9c13bc3a203bfac2b8707e2f (diff)
downloadlinux-22e48eaf587d044ba311a73c6fe0d0deaa8fdb63.tar.xz
constify string/array kparam tracking structures
.. in an effort to make read-only whatever can be made, so that CONFIG_DEBUG_RODATA can catch as many issues as possible. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/params.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/kernel/params.c b/kernel/params.c
index 4e57732fcfb4..1d6aca288cdc 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -252,8 +252,9 @@ int param_get_bool(char *buffer, struct kernel_param *kp)
int param_set_invbool(const char *val, struct kernel_param *kp)
{
int boolval, ret;
- struct kernel_param dummy = { .arg = &boolval };
+ struct kernel_param dummy;
+ dummy.arg = &boolval;
ret = param_set_bool(val, &dummy);
if (ret == 0)
*(int *)kp->arg = !boolval;
@@ -262,11 +263,7 @@ int param_set_invbool(const char *val, struct kernel_param *kp)
int param_get_invbool(char *buffer, struct kernel_param *kp)
{
- int val;
- struct kernel_param dummy = { .arg = &val };
-
- val = !*(int *)kp->arg;
- return param_get_bool(buffer, &dummy);
+ return sprintf(buffer, "%c", (*(int *)kp->arg) ? 'N' : 'Y');
}
/* We break the rule and mangle the string. */
@@ -325,7 +322,7 @@ static int param_array(const char *name,
int param_array_set(const char *val, struct kernel_param *kp)
{
- struct kparam_array *arr = kp->arg;
+ const struct kparam_array *arr = kp->arr;
unsigned int temp_num;
return param_array(kp->name, val, 1, arr->max, arr->elem,
@@ -335,7 +332,7 @@ int param_array_set(const char *val, struct kernel_param *kp)
int param_array_get(char *buffer, struct kernel_param *kp)
{
int i, off, ret;
- struct kparam_array *arr = kp->arg;
+ const struct kparam_array *arr = kp->arr;
struct kernel_param p;
p = *kp;
@@ -354,7 +351,7 @@ int param_array_get(char *buffer, struct kernel_param *kp)
int param_set_copystring(const char *val, struct kernel_param *kp)
{
- struct kparam_string *kps = kp->arg;
+ const struct kparam_string *kps = kp->str;
if (!val) {
printk(KERN_ERR "%s: missing param set value\n", kp->name);
@@ -371,7 +368,7 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
int param_get_string(char *buffer, struct kernel_param *kp)
{
- struct kparam_string *kps = kp->arg;
+ const struct kparam_string *kps = kp->str;
return strlcpy(buffer, kps->string, kps->maxlen);
}