Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/arch/powerpc/kernel/secvar-sysfs.c?h=linus%2Fmaster 2022-03-08T11:07:41Z 2022-03-08T11:07:41Z Hangyu Hua hbh25y@gmail.com 2022-03-02T02:19:59Z urn:sha1:d601fd24e6964967f115f036a840f4f28488f63f Refcount leak will happen when format_show returns failure in multiple cases. Unified management of of_node_put can fix this problem. Signed-off-by: Hangyu Hua <hbh25y@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220302021959.10959-1-hbh25y@gmail.com 2019-11-12T13:33:22Z Nayna Jain nayna@linux.ibm.com 2019-11-11T03:10:34Z urn:sha1:bd5d9c743d38f67d64ea1b512a461f6b5a5f6bec PowerNV secure variables, which store the keys used for OS kernel verification, are managed by the firmware. These secure variables need to be accessed by the userspace for addition/deletion of the certificates. This patch adds the sysfs interface to expose secure variables for PowerNV secureboot. The users shall use this interface for manipulating the keys stored in the secure variables. Signed-off-by: Nayna Jain <nayna@linux.ibm.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Eric Richter <erichte@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1573441836-3632-3-git-send-email-nayna@linux.ibm.com