linux-kernel - [PATCH 11/11] misc: fastrpc: Add dma_mask to fastrpc_channel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221124175125.418702-12-srinivas.kandagatla@linaro.org>
Date:   Thu, 24 Nov 2022 17:51:25 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 11/11] misc: fastrpc: Add dma_mask to fastrpc_channel_ctx

From: Abel Vesa <abel.vesa@...aro.org>

dma_set_mask_and_coherent only updates the mask to which the device
dma_mask pointer points to. Add a dma_mask to the channel ctx and set
the device dma_mask to point to that, otherwise the dma_set_mask will
return an error and the dma_set_coherent_mask will be skipped too.

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/misc/fastrpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index d3147e4313cc..9ddcaa4def06 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -279,6 +279,7 @@ struct fastrpc_channel_ctx {
 	struct list_head invoke_interrupted_mmaps;
 	bool secure;
 	bool unsigned_support;
+	u64 dma_mask;
 };
 
 struct fastrpc_device {
@@ -2309,6 +2310,7 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
 	kref_init(&data->refcount);
 
 	dev_set_drvdata(&rpdev->dev, data);
+	rdev->dma_mask = &data->dma_mask;
 	dma_set_mask_and_coherent(rdev, DMA_BIT_MASK(32));
 	INIT_LIST_HEAD(&data->users);
 	INIT_LIST_HEAD(&data->invoke_interrupted_mmaps);
-- 
2.25.1