clk: imx: Align imx sc clock msg structs 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: 3551ed342a4a ("clk: imx: add scu clock common part")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/10e97a04980d933b2cfecb6b124bf9046b6e4f16.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
index fbef740704d0c10a9972a60206cb0e7b0ce1dc55..3c5c42d8833ee1623a751d7c1778c7477d306ce7 100644 (file)
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -43,12 +43,12 @@ struct imx_sc_msg_req_set_clock_rate {
        __le32 rate;
        __le16 resource;
        u8 clk;
-} __packed;
+} __packed __aligned(4);
 
 struct req_get_clock_rate {
        __le16 resource;
        u8 clk;
-} __packed;
+} __packed __aligned(4);
 
 struct resp_get_clock_rate {
        __le32 rate;
@@ -121,7 +121,7 @@ struct imx_sc_msg_req_clock_enable {
        u8 clk;
        u8 enable;
        u8 autog;
-} __packed;
+} __packed __aligned(4);
 
 static inline struct clk_scu *to_clk_scu(struct clk_hw *hw)
 {