linux-kernel - [PATCH 5/5] i2c: geni: sdm845: dont perform DMA for the oneplus6

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20201007174736.292968-6-caleb@connolly.tech>
Date:   Wed, 07 Oct 2020 17:49:35 +0000
From:   Caleb Connolly <caleb@...nolly.tech>
To:     linux-arm-msm@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Akash Asthana <akashast@...eaurora.org>,
        Mukesh Savaliya <msavaliy@...eaurora.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        Caleb Connolly <caleb@...nolly.tech>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] i2c: geni: sdm845: dont perform DMA for the oneplus6

The OnePlus 6/T has the same issues as the c630 causing a crash when DMA
is used for i2c, so disable it.

https://patchwork.kernel.org/patch/11133827/
Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
---
 drivers/i2c/busses/i2c-qcom-geni.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index dead5db3315a..50a0674a6553 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -358,7 +358,8 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
 	struct geni_se *se = &gi2c->se;
 	size_t len = msg->len;
 
-	if (!of_machine_is_compatible("lenovo,yoga-c630"))
+	if (!of_machine_is_compatible("lenovo,yoga-c630") &&
+	    !of_machine_is_compatible("oneplus,oneplus6"))
 		dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
 
 	if (dma_buf)
@@ -400,7 +401,8 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
 	struct geni_se *se = &gi2c->se;
 	size_t len = msg->len;
 
-	if (!of_machine_is_compatible("lenovo,yoga-c630"))
+	if (!of_machine_is_compatible("lenovo,yoga-c630") &&
+	    !of_machine_is_compatible("oneplus,oneplus6"))
 		dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
 
 	if (dma_buf)
-- 
2.28.0