[PATCH] um: Disable KASAN_INLINE when STATIC_LINK is selected

[Christophe Leroy (CS GROUP)]

um doesn't support KASAN_INLINE together with STATIC_LINK.

Instead of failing the build, disable KASAN_INLINE when
STATIC_LINK is selected.

Reported-by: kernel test robot <l...@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511290451...@intel.com/
Fixes: 1e338f4d99e6 ("kasan: introduce ARCH_DEFER_KASAN and unify static key across modes")
Signed-off-by: Christophe Leroy (CS GROUP) <chl...@kernel.org>
---
arch/um/Kconfig | 1 +
arch/um/include/asm/kasan.h | 4 ----
2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 49781bee7905..93ed850d508e 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -5,6 +5,7 @@ menu "UML-specific options"
config UML
bool
default y
+ select ARCH_DISABLE_KASAN_INLINE if STATIC_LINK
select ARCH_NEEDS_DEFER_KASAN if STATIC_LINK
select ARCH_WANTS_DYNAMIC_TASK_STRUCT
select ARCH_HAS_CACHE_LINE_SIZE
diff --git a/arch/um/include/asm/kasan.h b/arch/um/include/asm/kasan.h
index b54a4e937fd1..81bcdc0f962e 100644
--- a/arch/um/include/asm/kasan.h
+++ b/arch/um/include/asm/kasan.h
@@ -24,10 +24,6 @@

#ifdef CONFIG_KASAN
void kasan_init(void);
-
-#if defined(CONFIG_STATIC_LINK) && defined(CONFIG_KASAN_INLINE)
-#error UML does not work in KASAN_INLINE mode with STATIC_LINK enabled!
-#endif
#else
static inline void kasan_init(void) { }
#endif /* CONFIG_KASAN */
--
2.49.0