[PATCH] loongarch: Do not select HAVE_RUST when KASAN is enabled

[Nathan Chancellor]

After commit 2625480a1bf7 ("hardening: Default randstruct off with rust
for better allmodconfig support"), which allows Rust to be enabled for
allmodconfig, ARCH=loongarch allmodconfig starts failing with:

  error: kernel-address sanitizer is not supported for this target

  error: aborting due to 1 previous error

  make[4]: *** [rust/Makefile:741: rust/core.o] Error 1

For the same reason as commit 84a0f7caafc6 ("ARM: Do not select
HAVE_RUST when KASAN is enabled"), do not select HAVE_RUST when KASAN is
enabled until the loongarch64-unknown-none-softfloat target in rustc
supports KASAN.

Fixes: 90868ff9cade ("LoongArch: Enable initial Rust support")
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
---
 arch/loongarch/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index a21f51e5815e..2067d1f2ad7a 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -175,7 +175,7 @@ config LOONGARCH
 	select HAVE_RELIABLE_STACKTRACE if UNWINDER_ORC
 	select HAVE_RETHOOK
 	select HAVE_RSEQ
-	select HAVE_RUST
+	select HAVE_RUST if !KASAN
 	select HAVE_SAMPLE_FTRACE_DIRECT
 	select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
 	select HAVE_SETUP_PER_CPU_AREA if NUMA

---
base-commit: 940de590b839f71d6dc846160534bf202401b8b7
change-id: 20260903-loongarch-disable-rust-with-kasan-ee6ca248bf1c

Best regards,
--  
Cheers,
Nathan