ALSA: dummy - Support high-res timer mode

[pandora-kernel.git] / kernel / params.c

diff --git a/kernel/params.c b/kernel/params.c
index de273ec..7f6912c 100644 (file)
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -24,9 +24,6 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 
-/* We abuse the high bits of "perm" to record whether we kmalloc'ed. */
-#define KPARAM_KMALLOCED       0x80000000
-
 #if 0
 #define DEBUGP printk
 #else
@@ -220,13 +217,13 @@ int param_set_charp(const char *val, struct kernel_param *kp)
                return -ENOSPC;
        }
 
-       if (kp->perm & KPARAM_KMALLOCED)
+       if (kp->flags & KPARAM_KMALLOCED)
                kfree(*(char **)kp->arg);
 
        /* This is a hack.  We can't need to strdup in early boot, and we
         * don't need to; this mangled commandline is preserved. */
        if (slab_is_available()) {
-               kp->perm |= KPARAM_KMALLOCED;
+               kp->flags |= KPARAM_KMALLOCED;
                *(char **)kp->arg = kstrdup(val, GFP_KERNEL);
                if (!kp->arg)
                        return -ENOMEM;
@@ -241,44 +238,63 @@ int param_get_charp(char *buffer, struct kernel_param *kp)
        return sprintf(buffer, "%s", *((char **)kp->arg));
 }
 
+/* Actually could be a bool or an int, for historical reasons. */
 int param_set_bool(const char *val, struct kernel_param *kp)
 {
+       bool v;
+
        /* No equals means "set"... */
        if (!val) val = "1";
 
        /* One of =[yYnN01] */
        switch (val[0]) {
        case 'y': case 'Y': case '1':
-               *(int *)kp->arg = 1;
-               return 0;
+               v = true;
+               break;
        case 'n': case 'N': case '0':
-               *(int *)kp->arg = 0;
-               return 0;
+               v = false;
+               break;
+       default:
+               return -EINVAL;
        }
-       return -EINVAL;
+
+       if (kp->flags & KPARAM_ISBOOL)
+               *(bool *)kp->arg = v;
+       else
+               *(int *)kp->arg = v;
+       return 0;
 }
 
 int param_get_bool(char *buffer, struct kernel_param *kp)
 {
+       bool val;
+       if (kp->flags & KPARAM_ISBOOL)
+               val = *(bool *)kp->arg;
+       else
+               val = *(int *)kp->arg;
+
        /* Y and N chosen as being relatively non-coder friendly */
-       return sprintf(buffer, "%c", (*(int *)kp->arg) ? 'Y' : 'N');
+       return sprintf(buffer, "%c", val ? 'Y' : 'N');
 }
 
+/* This one must be bool. */
 int param_set_invbool(const char *val, struct kernel_param *kp)
 {
-       int boolval, ret;
+       int ret;
+       bool boolval;
        struct kernel_param dummy;
 
        dummy.arg = &boolval;
+       dummy.flags = KPARAM_ISBOOL;
        ret = param_set_bool(val, &dummy);
        if (ret == 0)
-               *(int *)kp->arg = !boolval;
+               *(bool *)kp->arg = !boolval;
        return ret;
 }
 
 int param_get_invbool(char *buffer, struct kernel_param *kp)
 {
-       return sprintf(buffer, "%c", (*(int *)kp->arg) ? 'N' : 'Y');
+       return sprintf(buffer, "%c", (*(bool *)kp->arg) ? 'N' : 'Y');
 }
 
 /* We break the rule and mangle the string. */
@@ -591,7 +607,7 @@ void destroy_params(const struct kernel_param *params, unsigned num)
        unsigned int i;
 
        for (i = 0; i < num; i++)
-               if (params[i].perm & KPARAM_KMALLOCED)
+               if (params[i].flags & KPARAM_KMALLOCED)
                        kfree(*(char **)params[i].arg);
 }