[PATCH] firmware: arm_ffa: Set dma_mask for ffa devices

From: Viresh Kumar
Date: Fri Jan 17 2025 - 05:11:33 EST


Set dma_mask for FFA devices, otherwise DMA allocation using the device pointer
lead to following warning:

WARNING: CPU: 1 PID: 1 at kernel/dma/mapping.c:597 dma_alloc_attrs+0xe0/0x124

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/firmware/arm_ffa/bus.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index 587118f5285b..9dd5f6f805aa 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -247,6 +247,7 @@ ffa_device_register(const struct ffa_partition_info *part_info,
dev = &ffa_dev->dev;
dev->bus = &ffa_bus_type;
dev->release = ffa_release_device;
+ dev->dma_mask = &dev->coherent_dma_mask;
dev_set_name(&ffa_dev->dev, "arm-ffa-%d", id);

ffa_dev->id = id;
--
2.31.1.272.g89b43f80a514