firmware: imx: scu-pd: Align imx sc msg structs to 4
authorLeonard Crestez <leonard.crestez@nxp.com>
Thu, 20 Feb 2020 16:29:35 +0000 (18:29 +0200)
committerShawn Guo <shawnguo@kernel.org>
Mon, 24 Feb 2020 07:26:55 +0000 (15:26 +0800)
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: c800cd7824bd ("firmware: imx: add SCU power domain driver")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
drivers/firmware/imx/scu-pd.c

index b556612..af3ae00 100644 (file)
@@ -61,7 +61,7 @@ struct imx_sc_msg_req_set_resource_power_mode {
        struct imx_sc_rpc_msg hdr;
        u16 resource;
        u8 mode;
-} __packed;
+} __packed __aligned(4);
 
 #define IMX_SCU_PD_NAME_SIZE 20
 struct imx_sc_pm_domain {