Revert "ARM: 9017/2: Enable KASan for ARM"

This reverts commit 421015713b.

Right now arm allmodconfig builds fail with:
	FATAL: modpost: drivers/input/mousedev: sizeof(struct input_device_id)=164 is not a modulo of the size of section __mod_input__<identifier>_device_table=1216.
which seems to be caused by KASan, so disable it from ARM builds for now
until we figure it out.

Fixes: 421015713b ("ARM: 9017/2: Enable KASan for ARM")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie9352cdad01e286ca981692666ceed8d10c9bc23

Documentation/dev-tools/kasan.rst

@@ -18,8 +18,8 @@ out-of-bounds accesses for global variables is only supported since Clang 11.
 
 Tag-based KASAN is only supported in Clang.
 
-Currently generic KASAN is supported for the x86_64, arm, arm64, xtensa, s390
-and riscv architectures, and tag-based KASAN is supported only for arm64.
+Currently generic KASAN is supported for the x86_64, arm64, xtensa, s390 and
+riscv architectures, and tag-based KASAN is supported only for arm64.
 
 Usage
 -----

Documentation/features/debug/KASAN/arch-support.txt

@@ -8,7 +8,7 @@
     -----------------------
     |       alpha: | TODO |
     |         arc: | TODO |
-    |         arm: |  ok  |
+    |         arm: | TODO |
     |       arm64: |  ok  |
     |         c6x: | TODO |
     |        csky: | TODO |

arch/arm/Kconfig

@@ -68,7 +68,6 @@ config ARM
 	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
-	select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL
 	select HAVE_ARCH_MMAP_RND_BITS if MMU
 	select HAVE_ARCH_PFN_VALID
 	select HAVE_ARCH_SECCOMP