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module_param: remove support for bool parameters which are really int.

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module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

This eliminates that code (though leaves the flags field in the struct,
for impending use).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2012-03-26 12:50:51 +10:30
parent 02608bef8f
commit 8b8252813d
2 changed files with 8 additions and 34 deletions
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23
kernel/params.c
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@@ -297,35 +297,18 @@ EXPORT_SYMBOL(param_ops_charp);
/* Actually could be a bool or an int, for historical reasons. */
int param_set_bool(const char *val, const struct kernel_param *kp)
{
bool v;
int ret;
/* No equals means "set"... */
if (!val) val = "1";
/* One of =[yYnN01] */
ret = strtobool(val, &v);
if (ret)
return ret;
if (kp->flags & KPARAM_ISBOOL)
*(bool *)kp->arg = v;
else
*(int *)kp->arg = v;
return 0;
return strtobool(val, kp->arg);
}
EXPORT_SYMBOL(param_set_bool);
int param_get_bool(char *buffer, const 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", val ? 'Y' : 'N');
return sprintf(buffer, "%c", *(bool *)kp->arg ? 'Y' : 'N');
}
EXPORT_SYMBOL(param_get_bool);
@@ -343,7 +326,6 @@ int param_set_invbool(const char *val, const struct kernel_param *kp)
struct kernel_param dummy;
dummy.arg = &boolval;
dummy.flags = KPARAM_ISBOOL;
ret = param_set_bool(val, &dummy);
if (ret == 0)
*(bool *)kp->arg = !boolval;
@@ -372,7 +354,6 @@ int param_set_bint(const char *val, const struct kernel_param *kp)
/* Match bool exactly, by re-using it. */
boolkp = *kp;
boolkp.arg = &v;
boolkp.flags |= KPARAM_ISBOOL;
ret = param_set_bool(val, &boolkp);
if (ret == 0)