From: Leonard Crestez <leonard.crestez@nxp.com>
Date: Thu, 20 Feb 2020 16:29:36 +0000 (+0200)
Subject: firmware: imx: Align imx_sc_msg_req_cpu_start to 4
X-Git-Tag: v5.6-rc5~1^2~8^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f5bfeff44612d304deb100065a9f712309dc2783;p=thirdparty%2Fkernel%2Flinux.git

firmware: imx: Align imx_sc_msg_req_cpu_start to 4

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: d90bf296ae18 ("firmware: imx: Add support to start/stop a CPU")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/drivers/firmware/imx/misc.c b/drivers/firmware/imx/misc.c
index 6a21ff942f82a..d073cb3ce6993 100644
--- a/drivers/firmware/imx/misc.c
+++ b/drivers/firmware/imx/misc.c
@@ -24,7 +24,7 @@ struct imx_sc_msg_req_cpu_start {
 	u32 address_lo;
 	u16 resource;
 	u8 enable;
-} __packed;
+} __packed __aligned(4);
 
 struct imx_sc_msg_req_misc_get_ctrl {
 	struct imx_sc_rpc_msg hdr;