kmsan: add missing __user tags

sparse complains that __user pointers are being passed to functions that
expect non-__user ones.  In all cases, these functions are in fact working
with user pointers, only the tag is missing.  Add it.

Link: https://lkml.kernel.org/r/20240627145754.27333-2-iii@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202406272033.KejtfLkw-lkp@intel.com/
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/kmsan/core.c b/mm/kmsan/core.c
index 81b22220711a40ad582c46a71eb0e714c8208c80..a495debf143632fb115ef376374e74fc12c50339 100644 (file)
--- a/mm/kmsan/core.c
+++ b/mm/kmsan/core.c
@@ -249,8 +249,8 @@ struct page *kmsan_vmalloc_to_page_or_null(void *vaddr)
                return NULL;
 }
 
-void kmsan_internal_check_memory(void *addr, size_t size, const void *user_addr,
-                                int reason)
+void kmsan_internal_check_memory(void *addr, size_t size,
+                                const void __user *user_addr, int reason)
 {
        depot_stack_handle_t cur_origin = 0, new_origin = 0;
        unsigned long addr64 = (unsigned long)addr;

diff --git a/mm/kmsan/kmsan.h b/mm/kmsan/kmsan.h
index 91a360a31e85490b7e095ece0eb3e94a80e1d6e9..29555a8bc3153dd099285f4c78928547fc6e2500 100644 (file)
--- a/mm/kmsan/kmsan.h
+++ b/mm/kmsan/kmsan.h
@@ -73,7 +73,7 @@ void kmsan_print_origin(depot_stack_handle_t origin);
  * @off_last corresponding to different @origin values.
  */
 void kmsan_report(depot_stack_handle_t origin, void *address, int size,
-                 int off_first, int off_last, const void *user_addr,
+                 int off_first, int off_last, const void __user *user_addr,
                  enum kmsan_bug_reason reason);
 
 DECLARE_PER_CPU(struct kmsan_ctx, kmsan_percpu_ctx);
@@ -163,8 +163,8 @@ depot_stack_handle_t kmsan_internal_chain_origin(depot_stack_handle_t id);
 void kmsan_internal_task_create(struct task_struct *task);
 
 bool kmsan_metadata_is_contiguous(void *addr, size_t size);
-void kmsan_internal_check_memory(void *addr, size_t size, const void *user_addr,
-                                int reason);
+void kmsan_internal_check_memory(void *addr, size_t size,
+                                const void __user *user_addr, int reason);
 
 struct page *kmsan_vmalloc_to_page_or_null(void *vaddr);
 void kmsan_setup_meta(struct page *page, struct page *shadow,

diff --git a/mm/kmsan/report.c b/mm/kmsan/report.c
index 92e73ec6143529ac8b5983fb333c0127af4d2a24..94a3303fb65e0d48ed121abdd5e298d5cf015f8e 100644 (file)
--- a/mm/kmsan/report.c
+++ b/mm/kmsan/report.c
@@ -148,7 +148,7 @@ void kmsan_print_origin(depot_stack_handle_t origin)
 }
 
 void kmsan_report(depot_stack_handle_t origin, void *address, int size,
-                 int off_first, int off_last, const void *user_addr,
+                 int off_first, int off_last, const void __user *user_addr,
                  enum kmsan_bug_reason reason)
 {
        unsigned long stack_entries[KMSAN_STACK_DEPTH];