From: Jens Wiklander Date: Mon, 11 Mar 2024 11:07:00 +0000 (+0100) Subject: firmware: arm_ffa: Fix the partition ID check in ffa_notification_info_get() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1a4bd2b128fb5ca62e4d1c5ca298d3d06b9c1e8e;p=linux.git firmware: arm_ffa: Fix the partition ID check in ffa_notification_info_get() 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: 3522be48d82b ("firmware: arm_ffa: Implement the NOTIFICATION_INFO_GET interface") Signed-off-by: Jens Wiklander Reviewed-by: Lorenzo Pieralisi Link: https://lore.kernel.org/r/20240311110700.2367142-1-jens.wiklander@linaro.org Signed-off-by: Sudeep Holla --- diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index f2556a8e94015..9bc2e10381afd 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/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; }