firmware: arm_ffa: Fix the partition ID check in ffa_notification_info_get()

JIRA: https://issues.redhat.com/browse/RHEL-102691

commit 1a4bd2b
Author: Jens Wiklander <jens.wiklander@linaro.org>
Date: Mon, 11 Mar 2024 12:07:00 +0100

    FFA_NOTIFICATION_INFO_GET retrieves information about pending
    notifications. Notifications can be either global or per VCPU. Global
    notifications are reported with the partition ID only in the list of
    endpoints with pending notifications. ffa_notification_info_get()
    incorrectly expect no ID at all for global notifications. Fix this by
    checking for ID = 1 instead of ID = 0.

    Fixes: 3522be4 ("firmware: arm_ffa: Implement the NOTIFICATION_INFO_GET interface")
    Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
    Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
    Link: https://lore.kernel.org/r/20240311110700.2367142-1-jens.wiklander@linaro.org
    Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Signed-off-by: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>

Author: hrw

drivers/firmware/arm_ffa/driver.c

@@ -790,7 +790,7 @@ static void ffa_notification_info_get(void)
 
 			part_id = packed_id_list[ids_processed++];
 
-			if (!ids_count[list]) { /* Global Notification */
+			if (ids_count[list] == 1) { /* Global Notification */
 				__do_sched_recv_cb(part_id, 0, false);
 				continue;
 			}