[PATCH] drivers/base/firmware_class.c: cleanups

- remove the following global function that is both unused and
  unimplemented:
  - register_firmware()

- make the following needlessly global function static:
  - firmware_class_uevent()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Adrian Bunk 2006-05-20 15:00:16 -07:00 committed by Linus Torvalds
parent ccf06998fe
commit 1b81d6637d
4 changed files with 8 additions and 60 deletions

View file

@ -105,20 +105,3 @@
on the setup, so I think that the choice on what firmware to make
persistent should be left to userspace.
- Why register_firmware()+__init can be useful:
- For boot devices needing firmware.
- To make the transition easier:
The firmware can be declared __init and register_firmware()
called on module_init. Then the firmware is warranted to be
there even if "firmware hotplug userspace" is not there yet or
it doesn't yet provide the needed firmware.
Once the firmware is widely available in userspace, it can be
removed from the kernel. Or made optional (CONFIG_.*_FIRMWARE).
In either case, if firmware hotplug support is there, it can move the
firmware out of kernel memory into the real filesystem for later
usage.
Note: If persistence is implemented on top of initramfs,
register_firmware() may not be appropriate.

View file

@ -5,8 +5,6 @@
*
* Sample code on how to use request_firmware() from drivers.
*
* Note that register_firmware() is currently useless.
*
*/
#include <linux/module.h>
@ -17,11 +15,6 @@
#include "linux/firmware.h"
#define WE_CAN_NEED_FIRMWARE_BEFORE_USERSPACE_IS_AVAILABLE
#ifdef WE_CAN_NEED_FIRMWARE_BEFORE_USERSPACE_IS_AVAILABLE
char __init inkernel_firmware[] = "let's say that this is firmware\n";
#endif
static struct device ghost_device = {
.bus_id = "ghost0",
};
@ -104,10 +97,6 @@ static void sample_probe_async(void)
static int sample_init(void)
{
#ifdef WE_CAN_NEED_FIRMWARE_BEFORE_USERSPACE_IS_AVAILABLE
register_firmware("sample_driver_fw", inkernel_firmware,
sizeof(inkernel_firmware));
#endif
device_initialize(&ghost_device);
/* since there is no real hardware insertion I just call the
* sample probe functions here */