Re: [PATCH]kernel.h Fix #warning message web address.

From: Justin P. Mattock
Date: Wed Jun 30 2010 - 17:36:49 EST


On 06/30/2010 02:22 PM, Randy Dunlap wrote:
On Wed, 30 Jun 2010 14:20:42 -0700 Justin P. Mattock wrote:


Hehe, ugly. How about making it a single string? GCC preprocessor
documentation suggests the same anyway ...

Neither `#error' nor `#warning' macro-expands its argument.
Internal whitespace sequences are each replaced with a single space.
The line must consist of complete tokens. It is wisest to make the
argument of these directives be a single string constant; this avoids
problems with apostrophes and the like.

Doesn't that mean just put double quotation marks around the entire message string??


didnt even notice that. but to answer your question your right. updated patch below.



o.k. jiri, here is what I came up with, after re-reading and looking at
other in the kernel(below).



From 45f24db45faa06aad01cfc62ff4b475380e5cb11 Mon Sep 17 00:00:00 2001
From: Justin P. Mattock<justinmattock@xxxxxxxxx>
Date: Wed, 30 Jun 2010 14:06:18 -0700
Subject: [PATCH]kernel.h Fix #warning message according to the GCC
preprocessor docs.

received this #warning from a simple printk program and noticed the web
address is not showing up:
gcc printk.c -o printk
In file included from printk.c:3:
include/linux/kernel.h:733:2: warning: #warning Attempt to use kernel
headers from user space, see http:

after the changes the warning should just say:
#warning Attempt to use kernel headers from user space!

Signed-off-by: Justin P. Mattock<justinmattock@xxxxxxxxx>
---
include/linux/kernel.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 8317ec4..b542961 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -730,7 +730,7 @@ extern int do_sysinfo(struct sysinfo *info);

#ifndef __EXPORTED_HEADERS__
#ifndef __KERNEL__
-#warning Attempt to use kernel headers from user space, see
http://kernelnewbies.org/KernelHeaders
+#warning Attempt to use kernel headers from user space!
#endif /* __KERNEL__ */
#endif /* __EXPORTED_HEADERS__ */

--
1.7.1.rc1.21.gf3bd6


now I'm wondering if there should be a lead to the documentation with
this web address(seems grep is not finding anything that I might be able
to use).or just leave as is, and let people connect-the-dots!!

let me know..

Justin P. Mattock
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---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***




From 5e0b59283521c4b222c1131626e306752cd157f3 Mon Sep 17 00:00:00 2001
From: Justin P. Mattock <justinmattock@xxxxxxxxx>
Date: Wed, 30 Jun 2010 14:30:22 -0700
Subject: [PATCH]kernel.h Add quotation marks around the message so the web address is shown.

Add quotation marks around the message so the web address is shown.
before:
gcc printk.c -o printk
In file included from printk.c:3:
include/linux/kernel.h:733:2: warning: #warning Attempt to use kernel
headers from user space, see http:
after:
gcc printk.c -o printk
In file included from printk.c:3:
warning: #warning "Attempt to use kernel headers from user space,
see http://kernelnewbies.org/KernelHeaders";
Signed-off-by: Justin P. Mattock <justinmattock@xxxxxxxxx>

---
include/linux/kernel.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 8317ec4..4055858 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -730,7 +730,7 @@ extern int do_sysinfo(struct sysinfo *info);

#ifndef __EXPORTED_HEADERS__
#ifndef __KERNEL__
-#warning Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders
+#warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders";
#endif /* __KERNEL__ */
#endif /* __EXPORTED_HEADERS__ */

--
1.6.5.2.180.gc5b3e


of the two whatever works best.

Justin P. Mattock
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