diff mbox series

[1/3,v2] kasan: mark addr_has_metadata __always_inline

Message ID 20230215130058.3836177-2-arnd@kernel.org
State New
Headers
Series objtool warning fixes |

Commit Message

Arnd Bergmann Feb. 15, 2023, 1 p.m. UTC 
  From: Arnd Bergmann <arnd@arndb.de>

When the compiler decides not to inline this function, objtool
complains about incorrect UACCESS state:

mm/kasan/generic.o: warning: objtool: __asan_load2+0x11: call to addr_has_metadata() with UACCESS enabled

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
v2: fix objdump/objtool typo
---
 mm/kasan/kasan.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 3231314e071f..9377b0789edc 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -297,7 +297,7 @@  static inline const void *kasan_shadow_to_mem(const void *shadow_addr)
 		<< KASAN_SHADOW_SCALE_SHIFT);
 }
 
-static inline bool addr_has_metadata(const void *addr)
+static __always_inline bool addr_has_metadata(const void *addr)
 {
 	return (kasan_reset_tag(addr) >=
 		kasan_shadow_to_mem((void *)KASAN_SHADOW_START));
@@ -316,7 +316,7 @@  bool kasan_check_range(unsigned long addr, size_t size, bool write,
 
 #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */
 
-static inline bool addr_has_metadata(const void *addr)
+static __always_inline bool addr_has_metadata(const void *addr)
 {
 	return (is_vmalloc_addr(addr) || virt_addr_valid(addr));
 }