From: Leonard Crestez <leonard.crestez@nxp.com>
Date: Thu, 20 Feb 2020 16:29:33 +0000 (+0200)
Subject: clk: imx: Align imx sc clock parent msg structs to 4
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8400ab8896324641243b57fc49b448023c07409a;p=linux.git

clk: imx: Align imx sc clock parent 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: 666aed2d13ee ("clk: imx: scu: add set parent support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/aad021e432b3062c142973d09b766656eec18fde.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 3c5c42d8833ee..b8b2072742a56 100644
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -84,7 +84,7 @@ struct imx_sc_msg_get_clock_parent {
 		struct req_get_clock_parent {
 			__le16 resource;
 			u8 clk;
-		} __packed req;
+		} __packed __aligned(4) req;
 		struct resp_get_clock_parent {
 			u8 parent;
 		} resp;