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firmware_loader: move fw_fallback_config to a private kernel symbol namespace

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Take advantage of the new kernel symbol namespacing functionality, and
export the fw_fallback_config symbol only to a new private firmware loader
namespace. This would prevent misuses from other drivers and makes it clear
the goal is to keep this private to the firmware loader only.

It should also make it clearer for folks git grep'ing for users of
the symbol that this exported symbol is private, and prevent future
accidental removals of the exported symbol.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20200424184916.22843-2-mcgrof@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Luis Chamberlain 2020-04-24 18:49:16 +00:00 committed by Greg Kroah-Hartman
parent eb7fbc9fb1
commit 48ebea5026
2 changed files with 4 additions and 1 deletions
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3
drivers/base/firmware_loader/fallback.c
View File

@ -9,6 +9,7 @@
#include <linux/umh.h>
#include <linux/sysctl.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
#include "fallback.h"
#include "firmware.h"
@ -17,6 +18,8 @@
* firmware fallback mechanism
*/
MODULE_IMPORT_NS(FIRMWARE_LOADER_PRIVATE);
extern struct firmware_fallback_config fw_fallback_config;
/* These getters are vetted to use int properly */

2
drivers/base/firmware_loader/fallback_table.c
View File

@ -21,7 +21,7 @@ struct firmware_fallback_config fw_fallback_config = {
.loading_timeout = 60,
.old_timeout = 60,
};
EXPORT_SYMBOL_GPL(fw_fallback_config);
EXPORT_SYMBOL_NS_GPL(fw_fallback_config, FIRMWARE_LOADER_PRIVATE);
#ifdef CONFIG_SYSCTL
struct ctl_table firmware_config_table[] = {