netfilter: xtables: constify args in compat copying functions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

1 files changed, 6 insertions, 6 deletions

diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index a0a144a6c6d9..c61758f4be31 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -286,8 +286,8 @@ struct xt_match {
         void (*destroy)(const struct xt_mtdtor_param *);
 #ifdef CONFIG_COMPAT
         /* Called when userspace align differs from kernel space one */
-        void (*compat_from_user)(void *dst, void *src);
-        int (*compat_to_user)(void __user *dst, void *src);
+        void (*compat_from_user)(void *dst, const void *src);
+        int (*compat_to_user)(void __user *dst, const void *src);
 #endif
         /* Set this to THIS_MODULE if you are a module, otherwise NULL */
         struct module *me;
@@ -328,8 +328,8 @@ struct xt_target {
         void (*destroy)(const struct xt_tgdtor_param *);
 #ifdef CONFIG_COMPAT
         /* Called when userspace align differs from kernel space one */
-        void (*compat_from_user)(void *dst, void *src);
-        int (*compat_to_user)(void __user *dst, void *src);
+        void (*compat_from_user)(void *dst, const void *src);
+        int (*compat_to_user)(void __user *dst, const void *src);
 #endif
         /* Set this to THIS_MODULE if you are a module, otherwise NULL */
         struct module *me;
@@ -593,13 +593,13 @@ extern short xt_compat_calc_jump(u_int8_t af, unsigned int offset);
 extern int xt_compat_match_offset(const struct xt_match *match);
 extern int xt_compat_match_from_user(struct xt_entry_match *m,
                                      void **dstptr, unsigned int *size);
-extern int xt_compat_match_to_user(struct xt_entry_match *m,
+extern int xt_compat_match_to_user(const struct xt_entry_match *m,
                                    void __user **dstptr, unsigned int *size);
 
 extern int xt_compat_target_offset(const struct xt_target *target);
 extern void xt_compat_target_from_user(struct xt_entry_target *t,
                                        void **dstptr, unsigned int *size);
-extern int xt_compat_target_to_user(struct xt_entry_target *t,
+extern int xt_compat_target_to_user(const struct xt_entry_target *t,
                                     void __user **dstptr, unsigned int *size);
 
 #endif /* CONFIG_COMPAT */