[GIT PULL] firmware: arm_ffa: Fixes for v6.16

[Sudeep Holla]

Hi ARM SoC Team,

Please pull !

Regards,
Sudeep

-->8

The following changes since commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494:

  Linux 6.16-rc1 (2025-06-08 13:44:43 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git tags/ffa-fixes-6.16

for you to fetch changes up to 4c46a471be12216347ba707f8eadadbf5d68e698:

  firmware: arm_ffa: Fix the missing entry in struct ffa_indirect_msg_hdr (2025-06-09 11:24:43 +0100)

----------------------------------------------------------------
Arm FF-A fixes for v6.16

Couple of fixes to address:

1. The safety and memory issues in the FF-A notification callback handler:

   The fixes replaces a mutex with an rwlock to prevent sleeping in atomic
   context, resolving kernel warnings. Memory allocation is moved outside
   the lock to support this transition safely. Additionally, a memory leak
   in the notifier unregistration path is fixed by properly freeing the
   callback node.

2. The missing entry in struct ffa_indirect_msg_hdr:

   The fix adds the missing 32 bit reserved entry in the structure as
   required by the FF-A specification.

----------------------------------------------------------------
Sudeep Holla (3):
      firmware: arm_ffa: Fix memory leak by freeing notifier callback node
      firmware: arm_ffa: Move memory allocation outside the mutex locking
      firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context

Viresh Kumar (1):
      firmware: arm_ffa: Fix the missing entry in struct ffa_indirect_msg_hdr

 drivers/firmware/arm_ffa/driver.c | 71 ++++++++++++++++++++-------------------
 include/linux/arm_ffa.h           |  1 +
 2 files changed, 37 insertions(+), 35 deletions(-)