parisc: fix building with gcc-15

commit 7cbb015e2d3d6f180256cde0c908eab21268e7b9 upstream.

The decompressor is built with the default C dialect, which is now gnu23
on gcc-15, and this clashes with the kernel's bool type definition:

In file included from include/uapi/linux/posix_types.h:5,
                 from arch/parisc/boot/compressed/misc.c:7:
include/linux/stddef.h:11:9: error: cannot use keyword 'false' as enumeration constant
   11 |         false   = 0,

Add the -std=gnu11 argument here, as we do for all other architectures.

Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
index dff4536875305d722bbf1c56e03da5693f030110..4e5aecc263a2fcca1f801f356ca567ec3eb0ed1a 100644 (file)
--- a/arch/parisc/boot/compressed/Makefile
+++ b/arch/parisc/boot/compressed/Makefile
@@ -22,6 +22,7 @@ KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
 ifndef CONFIG_64BIT
 KBUILD_CFLAGS += -mfast-indirect-calls
 endif
+KBUILD_CFLAGS += -std=gnu11
 
 OBJECTS += $(obj)/head.o $(obj)/real2.o $(obj)/firmware.o $(obj)/misc.o $(obj)/piggy.o