[v3,0/2] soc: qcom: rmtfs-mem: Support non-root rmtfs daemons

Message

Evan Green Jan. 3, 2019, 12:02 a.m. UTC

This series contains minor fixes needed to better support running an
rmtfs daemon from an unprivileged process:
 - Enable uevents on the child character device by adding a struct
class to the parent. I needed these so that I could change the
ownership of /dev/qcom_rmtfs_mem1, and drove myself crazy trying to
understand why my udev rules never fired.
 - Enable access to phys_addr and size sysfs attributes. The daemon
needs to read these, and they don't really contain anything sensitive,
so expose them.

I still need CAP_NET_ADMIN to be able to bind to the right qrtr port,
but at least with these changes I can run as a different user, and drop
all other privileges.

Changes in v3:
- Removed spurious whitespace changes (Brian, Bjorn)

Changes in v2:
- Moved class registration/deregistration into init/exit routines (Brian)

Evan Green (2):
  soc: qcom: rmtfs-mem: Add class to enable uevents
  soc: qcom: rmtfs-mem: Make sysfs attributes world-readable

 drivers/soc/qcom/rmtfs_mem.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)