From: Arnd Bergmann <arnd@xxxxxxxx>
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@xxxxxxxxxxxxx>
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Reviewed-by: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2: fix objdump/objtool typo
---
mm/kasan/kasan.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
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));
}
--
2.39.1
