treewide: Fix function prototypes for module_param_call()

Several function prototypes for the set/get functions defined by
module_param_call() have a slightly wrong argument types. This fixes
those in an effort to clean up the calls when running under type-enforced
compiler instrumentation for CFI. This is the result of running the
following semantic patch:

@match_module_param_call_function@
declarer name module_param_call;
identifier _name, _set_func, _get_func;
expression _arg, _mode;
@@

 module_param_call(_name, _set_func, _get_func, _arg, _mode);

@fix_set_prototype
 depends on match_module_param_call_function@
identifier match_module_param_call_function._set_func;
identifier _val, _param;
type _val_type, _param_type;
@@

 int _set_func(
-_val_type _val
+const char * _val
 ,
-_param_type _param
+const struct kernel_param * _param
 ) { ... }

@fix_get_prototype
 depends on match_module_param_call_function@
identifier match_module_param_call_function._get_func;
identifier _val, _param;
type _val_type, _param_type;
@@

 int _get_func(
-_val_type _val
+char * _val
 ,
-_param_type _param
+const struct kernel_param * _param
 ) { ... }

Two additional by-hand changes are included for places where the above
Coccinelle script didn't notice them:

	drivers/platform/x86/thinkpad_acpi.c
	fs/lockd/svc.c

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
This commit is contained in:
Kees Cook
2017-10-17 19:04:42 -07:00
committed by Jessica Yu
parent b2f270e874
commit e4dca7b7aa
42 changed files with 87 additions and 72 deletions

View File

@@ -557,7 +557,8 @@ static int acpi_button_remove(struct acpi_device *device)
return 0;
}
static int param_set_lid_init_state(const char *val, struct kernel_param *kp)
static int param_set_lid_init_state(const char *val,
const struct kernel_param *kp)
{
int result = 0;
@@ -575,7 +576,8 @@ static int param_set_lid_init_state(const char *val, struct kernel_param *kp)
return result;
}
static int param_get_lid_init_state(char *buffer, struct kernel_param *kp)
static int param_get_lid_init_state(char *buffer,
const struct kernel_param *kp)
{
switch (lid_init_state) {
case ACPI_BUTTON_LID_INIT_OPEN: