This is a note to let you know that I've just added the patch titled
firmware: arm_ffa: Add missing rwlock_init() for the driver partition
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
firmware-arm_ffa-add-missing-rwlock_init-for-the-dri.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0798ad1d14fa306b796e56cd485d0b907c0a754c
Author: Cristian Marussi <cristian.marussi@xxxxxxx>
Date: Mon Jan 8 12:34:12 2024 +0000
firmware: arm_ffa: Add missing rwlock_init() for the driver partition
[ Upstream commit 5ff30ade16cd9efc2466d3ea22bbaf370772941a ]
Add the missing rwlock initialization for the FF-A partition associated
the driver in ffa_setup_partitions(). It will the primary scheduler
partition in the host or the VM partition in the virtualised environment.
IOW, it corresponds to the partition with VM ID == drv_info->vm_id.
Fixes: 1b6bf41b7a65 ("firmware: arm_ffa: Add notification handling mechanism")
Signed-off-by: Cristian Marussi <cristian.marussi@xxxxxxx>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-2-75bf7035bc50@xxxxxxx
Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index ed1d6a24934e..8df92c9521f4 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -1237,6 +1237,7 @@ static void ffa_setup_partitions(void)
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return;
+ rwlock_init(&info->rw_lock);
xa_store(&drv_info->partition_info, drv_info->vm_id, info, GFP_KERNEL);
drv_info->partition_count++;
}
