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firmware: google: Add a module_coreboot_driver() macro and use it 

Remove some boiler plate code we have in three drivers with a single
line each time. This also gets us a free assignment of the driver .owner
field, making these drivers work better as modules.

Cc: Wei-Ning Huang <wnhuang@chromium.org>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Brian Norris <briannorris@chromium.org>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Boyd 2019-05-10 11:01:47 -07:00 committed by Greg Kroah-Hartman
parent 7ef0b15244
commit 354635039d
4 changed files with 13 additions and 39 deletions
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10
drivers/firmware/google/coreboot_table.h
View File

@ -20,6 +20,7 @@
#ifndef __COREBOOT_TABLE_H
#define __COREBOOT_TABLE_H
#include <linux/device.h>
#include <linux/io.h>
/* Coreboot table header structure */
@ -91,4 +92,13 @@ int coreboot_driver_register(struct coreboot_driver *driver);
/* Unregister a driver that uses the data from a coreboot table. */
void coreboot_driver_unregister(struct coreboot_driver *driver);
/* module_coreboot_driver() - Helper macro for drivers that don't do
* anything special in module init/exit. This eliminates a lot of
* boilerplate. Each module may only use this macro once, and
* calling it replaces module_init() and module_exit()
*/
#define module_coreboot_driver(__coreboot_driver) \
module_driver(__coreboot_driver, coreboot_driver_register, \
coreboot_driver_unregister)
#endif /* __COREBOOT_TABLE_H */

14
drivers/firmware/google/framebuffer-coreboot.c
View File

@ -97,19 +97,7 @@ static struct coreboot_driver framebuffer_driver = {
},
.tag = CB_TAG_FRAMEBUFFER,
};
static int __init coreboot_framebuffer_init(void)
{
return coreboot_driver_register(&framebuffer_driver);
}
static void coreboot_framebuffer_exit(void)
{
coreboot_driver_unregister(&framebuffer_driver);
}
module_init(coreboot_framebuffer_init);
module_exit(coreboot_framebuffer_exit);
module_coreboot_driver(framebuffer_driver);
MODULE_AUTHOR("Samuel Holland <samuel@sholland.org>");
MODULE_LICENSE("GPL");

14
drivers/firmware/google/memconsole-coreboot.c
View File

@ -116,19 +116,7 @@ static struct coreboot_driver memconsole_driver = {
},
.tag = CB_TAG_CBMEM_CONSOLE,
};
static void coreboot_memconsole_exit(void)
{
coreboot_driver_unregister(&memconsole_driver);
}
static int __init coreboot_memconsole_init(void)
{
return coreboot_driver_register(&memconsole_driver);
}
module_exit(coreboot_memconsole_exit);
module_init(coreboot_memconsole_init);
module_coreboot_driver(memconsole_driver);
MODULE_AUTHOR("Google, Inc.");
MODULE_LICENSE("GPL");

14
drivers/firmware/google/vpd.c
View File

@ -324,19 +324,7 @@ static struct coreboot_driver vpd_driver = {
},
.tag = CB_TAG_VPD,
};
static int __init coreboot_vpd_init(void)
{
return coreboot_driver_register(&vpd_driver);
}
static void __exit coreboot_vpd_exit(void)
{
coreboot_driver_unregister(&vpd_driver);
}
module_init(coreboot_vpd_init);
module_exit(coreboot_vpd_exit);
module_coreboot_driver(vpd_driver);
MODULE_AUTHOR("Google, Inc.");
MODULE_LICENSE("GPL");