From 17ac7e9847640b4fcaeda0b113203c046c9c10fa Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Tue, 8 May 2018 16:27:26 +0200
Subject: [PATCH 070/105] bus: arm-cci: remove unnecessary unreachable()
Git-commit: 10d8713429d345867fc8998d6193b233c0cab28c
Patch-mainline: v4.18-rc1
References: fate#325865,fate#325861
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();
^
While the function is marked __naked it actually properly return
in asm. There is no need for the unreachable() call.
GCC 7.2 generates identical object files before and after, other
than (for obvious reasons) the line numbers generated by
WANT_WARN_ON_SLOWPATH for all the WARN()s appearing later in the
file.
Suggested-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/bus/arm-cci.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 443e4c3fd357..b8184a903583 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -371,8 +371,6 @@ 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();
}
/**
--
2.11.0