diff mbox series

[5.5,18/30] clk: imx: Align imx sc clock parent msg structs to 4

Message ID 20200401161429.561629963@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman April 1, 2020, 4:17 p.m. UTC 
From: Leonard Crestez <leonard.crestez@nxp.com>

commit 8400ab8896324641243b57fc49b448023c07409a 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: 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/clk/imx/clk-scu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- 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;