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Subject[PATCH v4 0/2] Enable capsule loader interface for efi firmware updating
From: "Kweh, Hock Leong" <>

Dear maintainers & communities,

This patchset is created on top of "efi: Capsule update support" patch:

It expose a sysfs loader interface for user to upload the capsule binary
and calling efi_capsule_update() API to pass the binary to EFI firmware.


changelog v4:
* rebase the firmware_class to gregkh/driver-core.git#driver-core-next
branch and drop the v3 2nd patch as Zahari already fix that in that

changelog v3:
* changes base on the design discussion in the mailing list:
* 1st patch introduce a new API request_firmware_direct_full_path() in
firmware_class for developer to pass in full path to the firmware file
* 2nd patch fix a bug for commit "firmware_loader: handle timeout via
* 3rd patch introduce the capsule loader interface kernel module

Kweh, Hock Leong (2):
firmware_loader: introduce new API -
efi: an sysfs interface for user to update efi firmware

drivers/base/firmware_class.c | 46 +++++++-
drivers/firmware/efi/Kconfig | 12 ++
drivers/firmware/efi/Makefile | 1
drivers/firmware/efi/efi-capsule-loader.c | 169 +++++++++++++++++++++++++++++
include/linux/firmware.h | 9 ++
5 files changed, 232 insertions(+), 5 deletions(-)
create mode 100644 drivers/firmware/efi/efi-capsule-loader.c


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