s390: disable gcc plugins

The s390 build currently fails with the latent entropy plugin:

arch/s390/kernel/als.o: In function `verify_facilities':
als.c:(.init.text+0x24): undefined reference to `latent_entropy'
als.c:(.init.text+0xae): undefined reference to `latent_entropy'
make[3]: *** [arch/s390/boot/compressed/vmlinux] Error 1
make[2]: *** [arch/s390/boot/compressed/vmlinux] Error 2
make[1]: *** [bzImage] Error 2

This will be fixed with the early boot rework from Vasily, which
is planned for the 4.19 merge window.

For 4.18 the simplest solution is to disable the gcc plugins and
reenable them after the early boot rework is upstream.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
(cherry picked from commit 2fba3573f1cf876ad94992c256c5c410039e60b4)

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3023fa00e4b501385e9e9884efdde413940ceaf9..f9b6036f1c16d0a3a9ba7749386062d61048fc43 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -140,7 +140,7 @@ config S390
        select HAVE_FUNCTION_GRAPH_TRACER
        select HAVE_FUNCTION_TRACER
        select HAVE_FUTEX_CMPXCHG if FUTEX
-       select HAVE_GCC_PLUGINS
+       select HAVE_GCC_PLUGINS if BROKEN
        select HAVE_KERNEL_BZIP2
        select HAVE_KERNEL_GZIP
        select HAVE_KERNEL_LZ4