linux5.18: fix build on ppc64 BE

srcpkgs/linux5.18/files/ppc64-dotconfig

@@ -2,7 +2,7 @@
 # Automatically generated file; DO NOT EDIT.
 # Linux/powerpc 5.18.1 Kernel Configuration
 #
-CONFIG_CC_VERSION_TEXT="powerpc64-linux-gnu-gcc (GCC) 10.2.1 20201203"
+CONFIG_CC_VERSION_TEXT="gcc (GCC) 10.2.1 20201203"
 CONFIG_CC_IS_GCC=y
 CONFIG_GCC_VERSION=100201
 CONFIG_CLANG_VERSION=0
@@ -650,7 +650,6 @@ CONFIG_HAVE_OPTPROBES=y
 CONFIG_HAVE_KPROBES_ON_FTRACE=y
 CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
 CONFIG_HAVE_NMI=y
-CONFIG_HAVE_FUNCTION_DESCRIPTORS=y
 CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 CONFIG_HAVE_ARCH_TRACEHOOK=y
 CONFIG_GENERIC_SMP_IDLE_THREAD=y

srcpkgs/linux5.18/patches/ppc64-be-elfv2.patch

@@ -84,3 +84,13 @@ Ping q66 if it does not apply.
  my $mtspr = sub {
      my ($f,$idx,$ra) = @_;
      if ($idx == 256 && $no_vrsave) {
+--- a/arch/powerpc/Kconfig
++++ b/arch/powerpc/Kconfig
+@@ -208,7 +208,6 @@ config PPC
+ 	select HAVE_EFFICIENT_UNALIGNED_ACCESS	if !(CPU_LITTLE_ENDIAN && POWER7_CPU)
+ 	select HAVE_FAST_GUP
+ 	select HAVE_FTRACE_MCOUNT_RECORD
+-	select HAVE_FUNCTION_DESCRIPTORS	if PPC64 && !CPU_LITTLE_ENDIAN
+ 	select HAVE_FUNCTION_ERROR_INJECTION
+ 	select HAVE_FUNCTION_GRAPH_TRACER
+ 	select HAVE_FUNCTION_TRACER