linux-kernel - [PATCH] seccomp: use a static inline for a function stub

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Date:	Tue, 17 Apr 2012 12:08:48 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	James Morris <jmorris@...ei.org>
Cc:	Will Drewry <wad@...omium.org>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	Eric Paris <eparis@...hat.com>,
	Kees Cook <keescook@...omium.org>
Subject: [PATCH] seccomp: use a static inline for a function stub

Fixes this error message when CONFIG_SECCOMP is not set:

arch/powerpc/kernel/ptrace.c: In function 'do_syscall_trace_enter':
arch/powerpc/kernel/ptrace.c:1713:2: error: statement with no effect [-Werror=unused-value]

Signed-off-by: Stephen Rothwell <sfr@...abs.au.ibm.com>
---
 include/linux/seccomp.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 5818e86..60f2b35 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -90,7 +90,7 @@ static inline int seccomp_mode(struct seccomp *s)
 struct seccomp { };
 struct seccomp_filter { };
 
-#define secure_computing(x) 0
+static inline int secure_computing(int this_syscall) { return 0; }
 
 static inline long prctl_get_seccomp(void)
 {
-- 
1.7.8.3



-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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