arm64: Only select ARM64_MODULE_PLTS if MODULES=y

commit b9c220b589daaf140f5b8ebe502c98745b94e65c upstream.

Selecting CONFIG_RANDOMIZE_BASE=y and CONFIG_MODULES=n fails to build
the module PLTs support:

  CC      arch/arm64/kernel/module-plts.o
/work/Linux/linux-2.6-aarch64/arch/arm64/kernel/module-plts.c: In function ‘module_emit_plt_entry’:
/work/Linux/linux-2.6-aarch64/arch/arm64/kernel/module-plts.c:32:49: error: dereferencing pointer to incomplete type ‘struct module’

This patch selects ARM64_MODULE_PLTS conditionally only if MODULES is
enabled.

Fixes: f80fb3a3d508 ("arm64: add support for kernel ASLR")
Reported-by: Jeff Vander Stoep <jeffv@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5a0a691d4220a60aab7a1ef2251f8ba85ddffe2a..20384925bb0ff4a952b83cfc016b00f46ff1cce2 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -872,7 +872,7 @@ config RELOCATABLE
 
 config RANDOMIZE_BASE
        bool "Randomize the address of the kernel image"
-       select ARM64_MODULE_PLTS
+       select ARM64_MODULE_PLTS if MODULES
        select RELOCATABLE
        help
          Randomizes the virtual address at which the kernel image is