* [PATCH] linux/uaccess.h needs to #include linux/kernel.h for might_sleep()
@ 2011-06-15 0:22 David Howells
2011-06-20 23:42 ` Andrew Morton
0 siblings, 1 reply; 3+ messages in thread
From: David Howells @ 2011-06-15 0:22 UTC (permalink / raw)
To: torvalds; +Cc: akpm, linux-am33-list, linux-kernel, David Howells
linux/uaccess.h needs to #include linux/kernel.h to get might_sleep() otherwise
it fails to build on MN10300 allyesconfig. This fails in a few places with
messages like the following:
In file included from security/keys/trusted.c:14:
include/linux/uaccess.h: In function '__copy_from_user_nocache':
include/linux/uaccess.h:52: error: implicit declaration of function 'might_sleep'
Signed-off-by: David Howells <dhowells@redhat.com>
---
include/linux/uaccess.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 5ca0951..ab540ed 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -2,6 +2,7 @@
#define __LINUX_UACCESS_H__
#include <linux/preempt.h>
+#include <linux/kernel.h>
#include <asm/uaccess.h>
/*
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] linux/uaccess.h needs to #include linux/kernel.h for might_sleep()
2011-06-15 0:22 [PATCH] linux/uaccess.h needs to #include linux/kernel.h for might_sleep() David Howells
@ 2011-06-20 23:42 ` Andrew Morton
2011-06-21 9:27 ` David Howells
0 siblings, 1 reply; 3+ messages in thread
From: Andrew Morton @ 2011-06-20 23:42 UTC (permalink / raw)
To: David Howells; +Cc: torvalds, linux-am33-list, linux-kernel
On Wed, 15 Jun 2011 01:22:10 +0100
David Howells <dhowells@redhat.com> wrote:
> linux/uaccess.h needs to #include linux/kernel.h to get might_sleep() otherwise
> it fails to build on MN10300 allyesconfig. This fails in a few places with
> messages like the following:
uaccess.h doesn't textually refer to might_sleep().
> In file included from security/keys/trusted.c:14:
> include/linux/uaccess.h: In function '__copy_from_user_nocache':
> include/linux/uaccess.h:52: error: implicit declaration of function 'might_sleep'
This happened because of arch/mn10300/include/asm/uaccess.h's
#define __copy_from_user(to, from, n) \
({ \
might_sleep(); \
__copy_from_user_inatomic((to), (from), (n)); \
})
> include/linux/uaccess.h | 1 +
So I'd suggest that patching the arch header file is the appropriate fix.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] linux/uaccess.h needs to #include linux/kernel.h for might_sleep()
2011-06-20 23:42 ` Andrew Morton
@ 2011-06-21 9:27 ` David Howells
0 siblings, 0 replies; 3+ messages in thread
From: David Howells @ 2011-06-21 9:27 UTC (permalink / raw)
To: Andrew Morton; +Cc: dhowells, torvalds, linux-am33-list, linux-kernel
Andrew Morton <akpm@linux-foundation.org> wrote:
> uaccess.h doesn't textually refer to might_sleep().
Good point. Whilst the error occurs in linux/uaccess.h, the actual problem is
in a #define in asm/uaccess.h.
David
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-06-15 0:22 [PATCH] linux/uaccess.h needs to #include linux/kernel.h for might_sleep() David Howells
2011-06-20 23:42 ` Andrew Morton
2011-06-21 9:27 ` David Howells
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