From: Jean Delvare <khali@linux-fr.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] check_signature depends on CONFIG_CHECK_SIGNATURE
Date: Fri, 20 May 2011 16:14:48 +0200 [thread overview]
Message-ID: <20110520161448.375eb634@endymion.delvare> (raw)
check_signature() is only available if CONFIG_CHECK_SIGNATURE has been
selected. Don't declare the function if it won't be available at link
time. That way, any failure to select CONFIG_CHECK_SIGNATURE as needed
will show up immediately at build time.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
include/linux/io.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- linux-2.6.40-rc0.orig/include/linux/io.h 2011-05-20 10:41:02.000000000 +0200
+++ linux-2.6.40-rc0/include/linux/io.h 2011-05-20 16:00:31.000000000 +0200
@@ -63,8 +63,11 @@ void __iomem *devm_ioremap(struct device
void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
unsigned long size);
void devm_iounmap(struct device *dev, void __iomem *addr);
+void devm_ioremap_release(struct device *dev, void *res);
+
+#ifdef CONFIG_CHECK_SIGNATURE
int check_signature(const volatile void __iomem *io_addr,
const unsigned char *signature, int length);
-void devm_ioremap_release(struct device *dev, void *res);
+#endif
#endif /* _LINUX_IO_H */
--
Jean Delvare
next reply other threads:[~2011-05-20 14:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-20 14:14 Jean Delvare [this message]
2011-05-20 22:11 ` [PATCH] check_signature depends on CONFIG_CHECK_SIGNATURE Andrew Morton
2011-05-21 6:48 ` Jean Delvare
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