BACKPORT: 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>
Bug: 67506682
Change-Id: I2c9c0ee8ed28065e63270a52c155e5e7d2791295
(cherry picked from commit e4dca7b7aa08b22893c45485d222b5807c1375ae)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 272c345..b43818c 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -50,7 +50,7 @@
static DEFINE_MUTEX(svc_pool_map_mutex);/* protects svc_pool_map.count only */
static int
-param_set_pool_mode(const char *val, struct kernel_param *kp)
+param_set_pool_mode(const char *val, const struct kernel_param *kp)
{
int *ip = (int *)kp->arg;
struct svc_pool_map *m = &svc_pool_map;
@@ -80,7 +80,7 @@
}
static int
-param_get_pool_mode(char *buf, struct kernel_param *kp)
+param_get_pool_mode(char *buf, const struct kernel_param *kp)
{
int *ip = (int *)kp->arg;