releases/5.5.9/soc-imx-scu-align-imx-sc-msg-structs-to-4.patch

From f10e58a5d20e1cf3a39a842da92c9dd0c3c23849 Mon Sep 17 00:00:00 2001
From: Leonard Crestez <leonard.crestez@nxp.com>
Date: Thu, 20 Feb 2020 18:29:39 +0200
Subject: soc: imx-scu: Align imx sc msg structs to 4

From: Leonard Crestez <leonard.crestez@nxp.com>

commit f10e58a5d20e1cf3a39a842da92c9dd0c3c23849 upstream.

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: 73feb4d0f8f1 ("soc: imx-scu: Add SoC UID(unique identifier) support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/soc/imx/soc-imx-scu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/soc/imx/soc-imx-scu.c
+++ b/drivers/soc/imx/soc-imx-scu.c
@@ -25,7 +25,7 @@ struct imx_sc_msg_misc_get_soc_id {
 			u32 id;
 		} resp;
 	} data;
-} __packed;
+} __packed __aligned(4);
 
 struct imx_sc_msg_misc_get_soc_uid {
 	struct imx_sc_rpc_msg hdr;