linux-kernel - Re: linux-next: build warnings in Linus' tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <1283148482.3707.167.camel@rui>
Date:	Mon, 30 Aug 2010 14:08:02 +0800
From:	Zhang Rui <rui.zhang@...el.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Len Brown <lenb@...nel.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build warnings in Linus' tree

On Mon, 2010-08-30 at 09:42 +0800, Stephen Rothwell wrote:
> Hi Len,
> 
> On Tue, 17 Aug 2010 11:24:39 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > Today's linux-next build (x86_64 allmodconfig) produced these warnings:
> > 
> > drivers/acpi/sysfs.c:152: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:152: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:152: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:152: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:154: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:154: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:154: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > drivers/acpi/sysfs.c:154: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
> > include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
> > 
> > Introduced by commit 1c8fce27e275fd7c6b75bc6455745f02d3903ee6 ("ACPI:
> > introduce drivers/acpi/sysfs.c") interacting with commit
> > 9bbb9e5a33109b2832e2e63dcc7a132924ab374b ("param: use ops in struct
> > kernel_param, rather than get and set fns directly").
> 
> Can we have this fixed, please?
patch attached. :)

Use module_param_cb instead of the obsoleted module_param_call to fix a build warning.

Signed-off-by: Zhang Rui <rui.zhang@...el.com>
---
 drivers/acpi/sysfs.c |   20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

Index: linux-2.6/drivers/acpi/sysfs.c
===================================================================
--- linux-2.6.orig/drivers/acpi/sysfs.c
+++ linux-2.6/drivers/acpi/sysfs.c
@@ -100,7 +100,7 @@ static const struct acpi_dlevel acpi_deb
 	ACPI_DEBUG_INIT(ACPI_LV_EVENTS),
 };
 
-static int param_get_debug_layer(char *buffer, struct kernel_param *kp)
+static int param_get_debug_layer(char *buffer, const struct kernel_param *kp)
 {
 	int result = 0;
 	int i;
@@ -128,7 +128,7 @@ static int param_get_debug_layer(char *b
 	return result;
 }
 
-static int param_get_debug_level(char *buffer, struct kernel_param *kp)
+static int param_get_debug_level(char *buffer, const struct kernel_param *kp)
 {
 	int result = 0;
 	int i;
@@ -149,10 +149,18 @@ static int param_get_debug_level(char *b
 	return result;
 }
 
-module_param_call(debug_layer, param_set_uint, param_get_debug_layer,
-		  &acpi_dbg_layer, 0644);
-module_param_call(debug_level, param_set_uint, param_get_debug_level,
-		  &acpi_dbg_level, 0644);
+static struct kernel_param_ops param_ops_debug_layer = {
+	.set = param_set_uint,
+	.get = param_get_debug_layer,
+};
+
+static struct kernel_param_ops param_ops_debug_level = {
+	.set = param_set_uint,
+	.get = param_get_debug_level,
+};
+
+module_param_cb(debug_layer, &param_ops_debug_layer, &acpi_dbg_layer, 0644);
+module_param_cb(debug_level, &param_ops_debug_level, &acpi_dbg_level, 0644);
 
 static char trace_method_name[6];
 module_param_string(trace_method_name, trace_method_name, 6, 0644);



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/