Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.5 17/30] clk: imx: Align imx sc clock msg structs to 4 | Date | Wed, 1 Apr 2020 18:17:21 +0200 |
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From: Leonard Crestez <leonard.crestez@nxp.com>
commit a0ae04a25650fd51b7106e742d27333e502173c6 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: fe37b4820417 ("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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/clk/imx/clk-scu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- 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) {
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