ARM: Do not select HAVE_RUST when KASAN is enabled

When KASAN is enabled, such as with allmodconfig, the build fails when
building the Rust code with:

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

  error: aborting due to 1 previous error

  make[4]: *** [rust/Makefile:654: rust/core.o] Error 1

The arm-unknown-linux-gnueabi target does not support KASAN, so avoid
saying Rust is supported when it is enabled.

Cc: stable@vger.kernel.org
Fixes: ccb8ce526807 ("ARM: 9441/1: rust: Enable Rust support for ARMv7")
Link: https://github.com/Rust-for-Linux/linux/issues/1234
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Christian Schrefl <chrisi.schrefl@gmail.com>
Link: https://patch.msgid.link/20260511-arm-avoid-rust-with-kasan-v1-1-24d55f4a900b@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 71fc5dd4123f3c0eb0bd397cfbb4ed7474de6976..73e6647bea4630e87ae678bcd37452b45c624d98 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -136,7 +136,7 @@ config ARM
        select MMU_GATHER_RCU_TABLE_FREE if SMP && ARM_LPAE
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_RSEQ
-       select HAVE_RUST if CPU_LITTLE_ENDIAN && CPU_32v7
+       select HAVE_RUST if CPU_LITTLE_ENDIAN && CPU_32v7 && !KASAN
        select HAVE_STACKPROTECTOR
        select HAVE_SYSCALL_TRACEPOINTS
        select HAVE_UID16