Mixing asm and C code is not recommended in a naked function by
gcc and leads to an error when using clang:
drivers/bus/arm-cci.c:2107:2: error: non-ASM statement in naked
function is not supported
unreachable();
^
Instead of using the unreachable() macro use the assember variant
ASM_UNREACHABLE. This will no longer emit __builtin_unreachable(),
but since the function is naked and its return type is void it seems
not to have aversive effects.
Signed-off-by: Stefan Agner <ste...@agner.ch>
---
drivers/bus/arm-cci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 5426c04fe24b..ee9da86fec47 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -2084,6 +2084,7 @@ asmlinkage void __naked cci_enable_port_for_self(void)
" mov r0, #0 \n"
" bx lr \n"
+ ASM_UNREACHABLE
" .align 2 \n"
"5: .word cpu_port - . \n"
@@ -2103,8 +2104,6 @@ asmlinkage void __naked cci_enable_port_for_self(void)
[sizeof_struct_cpu_port] "i" (sizeof(struct cpu_port)),
[sizeof_struct_ace_port] "i" (sizeof(struct cci_ace_port)),
[offsetof_port_phys] "i" (offsetof(struct cci_ace_port, phys)) );
-
- unreachable();
}
/**
--
2.16.2
