linux-kernel - Re: linux-next: build warning after merge of the kbuild tree

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Date:	Thu, 30 Sep 2010 22:25:07 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Arnaud Lacombe <lacombar@...il.com>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: linux-next: build warning after merge of the kbuild tree

On Thu, Sep 30, 2010 at 10:50:25AM +1000, Stephen Rothwell wrote:
> Hi Michal,
> 
> After merging the kbuild tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
> 
> scripts/kconfig/kxgettext.c: In function 'menu_build_message_list':
> scripts/kconfig/kxgettext.c:175: warning: passing argument 3 of 'message__add' discards qualifiers from pointer target type
> scripts/kconfig/kxgettext.c:148: note: expected 'char *' but argument is of type 'const char * const'
> scripts/kconfig/kxgettext.c:180: warning: passing argument 3 of 'message__add' discards qualifiers from pointer target type
> scripts/kconfig/kxgettext.c:148: note: expected 'char *' but argument is of type 'const char * const'

Thanks, fixed with


From: Michal Marek <mmarek@...e.cz>
Subject: kconfig: Propagate const

Commit 2e7a091 made struct file->name a const char*, but forgot to
constify all users of it.

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Michal Marek <mmarek@...e.cz>
---
 scripts/kconfig/kxgettext.c |   15 +++++++++------
 1 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/scripts/kconfig/kxgettext.c b/scripts/kconfig/kxgettext.c
index dcc3fcc..e9d8e79 100644
--- a/scripts/kconfig/kxgettext.c
+++ b/scripts/kconfig/kxgettext.c
@@ -63,11 +63,11 @@ next:
 
 struct file_line {
 	struct file_line *next;
-	char*		 file;
-	int		 lineno;
+	const char *file;
+	int lineno;
 };
 
-static struct file_line *file_line__new(char *file, int lineno)
+static struct file_line *file_line__new(const char *file, int lineno)
 {
 	struct file_line *self = malloc(sizeof(*self));
 
@@ -90,7 +90,8 @@ struct message {
 
 static struct message *message__list;
 
-static struct message *message__new(const char *msg, char *option, char *file, int lineno)
+static struct message *message__new(const char *msg, char *option,
+				    const char *file, int lineno)
 {
 	struct message *self = malloc(sizeof(*self));
 
@@ -130,7 +131,8 @@ static struct message *mesage__find(const char *msg)
 	return m;
 }
 
-static int message__add_file_line(struct message *self, char *file, int lineno)
+static int message__add_file_line(struct message *self, const char *file,
+				  int lineno)
 {
 	int rc = -1;
 	struct file_line *fl = file_line__new(file, lineno);
@@ -145,7 +147,8 @@ out:
 	return rc;
 }
 
-static int message__add(const char *msg, char *option, char *file, int lineno)
+static int message__add(const char *msg, char *option, const char *file,
+			int lineno)
 {
 	int rc = 0;
 	char bf[16384];
-- 
1.7.1

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