Thread (21 messages) 21 messages, 6 authors, 2020-03-16
STALE2294d LANDED

[PATCH v2 6/8] pinctrl: imx: scu: Align imx sc msg structs to 4

From: Leonard Crestez <hidden>
Date: 2020-02-20 16:29:53
Also in: linux-clk, linux-gpio, linux-rtc
Subsystem: pin control subsystem, pin controller - freescale, the rest · Maintainers: Linus Walleij, Dong Aisheng, Fabio Estevam, Frank Li, Jacky Bai, Linus Torvalds

The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: b96eea718bf6 ("pinctrl: fsl: add scu based pinctrl support")
Signed-off-by: Leonard Crestez <redacted>
---
 drivers/pinctrl/freescale/pinctrl-scu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c b/drivers/pinctrl/freescale/pinctrl-scu.c
index 73bf1d9f9cc6..23cf04bdfc55 100644
--- a/drivers/pinctrl/freescale/pinctrl-scu.c
+++ b/drivers/pinctrl/freescale/pinctrl-scu.c
@@ -21,16 +21,16 @@ enum pad_func_e {
 
 struct imx_sc_msg_req_pad_set {
 	struct imx_sc_rpc_msg hdr;
 	u32 val;
 	u16 pad;
-} __packed;
+} __packed __aligned(4);
 
 struct imx_sc_msg_req_pad_get {
 	struct imx_sc_rpc_msg hdr;
 	u16 pad;
-} __packed;
+} __packed __aligned(4);
 
 struct imx_sc_msg_resp_pad_get {
 	struct imx_sc_rpc_msg hdr;
 	u32 val;
 } __packed;
-- 
2.17.1


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