linux-kernel - [PATCH] x86/syscalls/32: ignore arch

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Message-Id: <20170323151904.706286-1-arnd@arndb.de>
Date:   Thu, 23 Mar 2017 16:18:51 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Kyle Huey <khuey@...ehuey.com>, Arnd Bergmann <arnd@...db.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] x86/syscalls/32: ignore arch_prctl for other architectures

sys_arch_prctl is only provided on x86, and there is no reason
to add it elsewhere. However, including it on the 32-bit syscall
table caused a warning for most configurations on non-x86:

:1328:2: warning: #warning syscall arch_prctl not implemented [-Wcpp]

This adds an exception to the syscall table checking script.

Fixes: 79170fda313e ("x86/syscalls/32: Wire up arch_prctl on x86-32")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 scripts/checksyscalls.sh | 1 +
 1 file changed, 1 insertion(+)

Thomas, can you apply this on top of the x86 patch?

diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index f7ad07128811..0cce56da3706 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -148,6 +148,7 @@ cat << EOF
 #define __IGNORE_sysfs
 #define __IGNORE_uselib
 #define __IGNORE__sysctl
+#define __IGNORE_arch_prctl
 
 /* ... including the "new" 32-bit uid syscalls */
 #define __IGNORE_lchown32
-- 
2.9.0