armv8: semihosting: do not inline trap call

The semihosting trap call does not like being inlined, probably
because that will mean register reordering screwing up the return
value in r0, so tag this function "noinline".

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/arm/lib/semihosting.c b/arch/arm/lib/semihosting.c
index fd6d8573f560fd1064f43540fea6b43c2a7ebd07..d3f724b726e19da7004ecabdc5ff38512a7df63a 100644 (file)
--- a/arch/arm/lib/semihosting.c
+++ b/arch/arm/lib/semihosting.c
@@ -26,7 +26,7 @@
 /*
  * Call the handler
  */
-static long smh_trap(unsigned int sysnum, void *addr)
+static noinline long smh_trap(unsigned int sysnum, void *addr)
 {
        register long result asm("r0");
 #if defined(CONFIG_ARM64)