linux-kernel - [PATCH 1/2] firmware: arm_ffa: Partition info can returns self as well

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Message-Id: <0bc7e1754db0547c6c041ed178cf24ca326af2d1.1737522729.git.viresh.kumar@linaro.org>
Date: Wed, 22 Jan 2025 10:53:42 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Sudeep Holla <sudeep.holla@....com>
Cc: Viresh Kumar <viresh.kumar@...aro.org>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Alex Bennée <alex.bennee@...aro.org>,
	Bill Mills <bill.mills@...aro.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] firmware: arm_ffa: Partition info can returns self as well

Partition info may return self partition as well (specially with newer
versions of FFA spec), skip adding it twice.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
Rebased over: 9967e35eb1cbdb8d0c0bae3f54401d806700e6b6.1732255888.git.viresh.kumar@...aro.org

 drivers/firmware/arm_ffa/driver.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 34d9a54b6a77..b824c7c024fd 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -1424,6 +1424,9 @@ static int ffa_setup_partitions(void)
 
 	xa_init(&drv_info->partition_info);
 	for (idx = 0, tpbuf = pbuf; idx < count; idx++, tpbuf++) {
+		if (drv_info->vm_id == tpbuf->id)
+			continue;
+
 		/* Note that if the UUID will be uuid_null, that will require
 		 * ffa_bus_notifier() to find the UUID of this partition id
 		 * with help of ffa_device_match_uuid(). FF-A v1.1 and above
-- 
2.31.1.272.g89b43f80a514