From: Ingo Molnar <mingo@elte.hu>
To: lkml <linux-kernel@vger.kernel.org>
Cc: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
Arjan van de Ven <arjan@infradead.org>,
Nicolas Pitre <nico@cam.org>,
Jes Sorensen <jes@trained-monkey.org>,
Al Viro <viro@ftp.linux.org.uk>, Oleg Nesterov <oleg@tv-sign.ru>,
David Howells <dhowells@redhat.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Christoph Hellwig <hch@infradead.org>, Andi Kleen <ak@suse.de>,
Russell King <rmk+lkml@arm.linux.org.uk>
Subject: [patch 02/21] mutex subsystem, add typecheck_fn(type, function)
Date: Thu, 5 Jan 2006 16:37:08 +0100 [thread overview]
Message-ID: <20060105153708.GC31013@elte.hu> (raw)
From: Chuck Ebbert <76306.1226@compuserve.com>
add typecheck_fn(type, function) to do type-checking of function
pointers.
Modified-by: Ingo Molnar <mingo@elte.hu>
(made it typeof() based, instead of typedef based.)
Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
----
include/linux/kernel.h | 9 +++++++++
1 files changed, 9 insertions(+)
Index: linux/include/linux/kernel.h
===================================================================
--- linux.orig/include/linux/kernel.h
+++ linux/include/linux/kernel.h
@@ -286,6 +286,15 @@ extern void dump_stack(void);
1; \
})
+/*
+ * Check at compile time that 'function' is a certain type, or is a pointer
+ * to that type (needs to use typedef for the function type.)
+ */
+#define typecheck_fn(type,function) \
+({ typeof(type) __tmp = function; \
+ (void)__tmp; \
+})
+
#endif /* __KERNEL__ */
#define SI_LOAD_SHIFT 16
next reply other threads:[~2006-01-05 15:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-05 15:37 Ingo Molnar [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-01-04 14:42 [patch 02/21] mutex subsystem, add typecheck_fn(type, function) Ingo Molnar
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