soc: imx-scu: Align imx sc msg structs to 4
authorLeonard Crestez <leonard.crestez@nxp.com>
Thu, 20 Feb 2020 16:29:39 +0000 (18:29 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Mar 2020 12:00:28 +0000 (13:00 +0100)
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

index c68882e..f638e77 100644 (file)
@@ -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;