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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-01 10:00:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-01 10:00:28 -0800
commit47fcc0360cfb3fe82e4daddacad3c1cd80b0b75d (patch)
tree6a72f705c4e16643e08152ce7828a23c68c623ae /drivers/base/Kconfig
parent5d8515bc232172963a4cef007e97b08c5e4d0533 (diff)
parentc505cbd45f6e9c539d57dd171d95ec7e5e9f9cd0 (diff)
Merge tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH: "Here is the set of "big" driver core patches for 4.16-rc1. The majority of the work here is in the firmware subsystem, with reworks to try to attempt to make the code easier to handle in the long run, but no functional change. There's also some tree-wide sysfs attribute fixups with lots of acks from the various subsystem maintainers, as well as a handful of other normal fixes and changes. And finally, some license cleanups for the driver core and sysfs code. All have been in linux-next for a while with no reported issues" * tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits) device property: Define type of PROPERTY_ENRTY_*() macros device property: Reuse property_entry_free_data() device property: Move property_entry_free_data() upper firmware: Fix up docs referring to FIRMWARE_IN_KERNEL firmware: Drop FIRMWARE_IN_KERNEL Kconfig option USB: serial: keyspan: Drop firmware Kconfig options sysfs: remove DEBUG defines sysfs: use SPDX identifiers drivers: base: add coredump driver ops sysfs: add attribute specification for /sysfs/devices/.../coredump test_firmware: fix missing unlock on error in config_num_requests_store() test_firmware: make local symbol test_fw_config static sysfs: turn WARN() into pr_warn() firmware: Fix a typo in fallback-mechanisms.rst treewide: Use DEVICE_ATTR_WO treewide: Use DEVICE_ATTR_RO treewide: Use DEVICE_ATTR_RW sysfs.h: Use octal permissions component: add debugfs support bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate ...
Diffstat (limited to 'drivers/base/Kconfig')
-rw-r--r--drivers/base/Kconfig28
1 files changed, 5 insertions, 23 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 2415ad9f6dd4..784ff0003c1b 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -86,10 +86,9 @@ config FW_LOADER
require userspace firmware loading support, but a module built
out-of-tree does.
-config FIRMWARE_IN_KERNEL
- bool "Include in-kernel firmware blobs in kernel binary"
+config EXTRA_FIRMWARE
+ string "External firmware blobs to build into the kernel binary"
depends on FW_LOADER
- default y
help
Various drivers in the kernel source tree may require firmware,
which is generally available in your distribution's linux-firmware
@@ -99,23 +98,6 @@ config FIRMWARE_IN_KERNEL
/lib/firmware/ on your system, so they can be loaded by userspace
helpers on request.
- Enabling this option will build each required firmware blob
- specified by EXTRA_FIRMWARE into the kernel directly, where
- request_firmware() will find them without having to call out to
- userspace. This may be useful if your root file system requires a
- device that uses such firmware and you do not wish to use an
- initrd.
-
- This single option controls the inclusion of firmware for
- every driver that uses request_firmware(), which avoids a
- proliferation of 'Include firmware for xxx device' options.
-
- Say 'N' and let firmware be loaded from userspace.
-
-config EXTRA_FIRMWARE
- string "External firmware blobs to build into the kernel binary"
- depends on FW_LOADER
- help
This option allows firmware to be built into the kernel for the case
where the user either cannot or doesn't want to provide it from
userspace at runtime (for example, when the firmware in question is
@@ -126,11 +108,11 @@ config EXTRA_FIRMWARE
firmware files -- the same names that appear in MODULE_FIRMWARE()
and request_firmware() in the source. These files should exist under
the directory specified by the EXTRA_FIRMWARE_DIR option, which is
- by default the firmware subdirectory of the kernel source tree.
+ /lib/firmware by default.
For example, you might set CONFIG_EXTRA_FIRMWARE="usb8388.bin", copy
- the usb8388.bin file into the firmware directory, and build the kernel.
- Then any request_firmware("usb8388.bin") will be satisfied internally
+ the usb8388.bin file into /lib/firmware, and build the kernel. Then
+ any request_firmware("usb8388.bin") will be satisfied internally
without needing to call out to userspace.
WARNING: If you include additional firmware files into your binary