request_firmware() backport to 2.4

[Marcel Holtmann <marcel@holtmann.org>]

Hi Marcelo,

I have collected the patches for the request_firmware() interface
backport for 2.4 done by Manuel Estrada Sainz. It is now in -ac for a
while and I have used it in my -mh patches. It works fine and seems to
be clean and very stable. Karsten Keil has tested it together with my
ported bfusb.o Bluetooth driver on AMD64.

Regards

Marcel


Please do a

        bk pull http://linux-mh.bkbits.net/fw-loader-2.4

This will update the following files:

 drivers/bluetooth/bfusb.h                             |52261 ------------------
 Documentation/Configure.help                          |    6 
 Documentation/firmware_class/README                   |   58 
 Documentation/firmware_class/firmware_sample_driver.c |  121 
 Documentation/firmware_class/hotplug-script           |   16 
 drivers/bluetooth/Makefile.lib                        |    1 
 drivers/bluetooth/bfusb.c                             |   38 
 include/linux/firmware.h                              |   20 
 lib/Config.in                                         |    7 
 lib/Makefile                                          |    4 
 lib/firmware_class.c                                  |  581 
 11 files changed, 830 insertions(+), 52283 deletions(-)

through these ChangeSets:

<marcel@holtmann.org> (03/08/19 1.1078.1.5)
   [PATCH] Make request_firmware() compile cleanly
   
   This patch makes the request_firmware() compile on other platforms
   than i386. It adds the missing include <linux/init.h> and replaces
   some ssize_t with int.

<marcel@holtmann.org> (03/08/16 1.1078.1.4)
   [Bluetooth] Make use of request_firmware() for the BlueFRITZ! USB driver
   
   The BlueFRITZ! USB devices need a firmware download every time they are
   plugged in. With request_firmware() the file bfubase.frm is now loaded
   from the userspace and the included firmware is removed.

<marcel@holtmann.org> (03/08/15 1.1078.1.3)
   [PATCH] Firmware loading depends on hotplug support
   
   This patch makes the firmware loading support only selectable if the
   hotplug support is also enabled.

<marcel@holtmann.org> (03/08/11 1.1078.1.2)
   [PATCH] Make request_firmware() compile if hotplug support is disabled
   
   This patch fixes the problem, where hotplug support is disabled and an
   internal kernel driver uses request_firmware(). The driver will compile
   and load now, but it must handle the case where the firmware loading
   fails, because the kernel is build without hotplug support, by itself.

<ranty@debian.org> (03/08/11 1.1078.1.1)
   [PATCH] request_firmware() backport to 2.4 kernels
   
   A while back request_firmware() was added to the 2.5 kernel series
   to support firmware needing drivers keeping the firmware images in
   userspace. And I also backported it to the 2.4 kernel series on top
   of procfs.