* [PATCH] thermal: imx_sc_thermal: Align imx sc thermal msg structs to 4
@ 2020-03-02 2:51 Anson Huang
2020-03-02 8:54 ` Daniel Lezcano
0 siblings, 1 reply; 2+ messages in thread
From: Anson Huang @ 2020-03-02 2:51 UTC (permalink / raw)
To: rui.zhang, daniel.lezcano, amit.kucheria, shawnguo, s.hauer,
kernel, festevam, linux-pm, linux-arm-kernel, linux-kernel
Cc: Linux-imx
The i.MX SCU API strongly assumes that messages are composed out
of 4-bytes words but some of our message structs have odd sizeofs,
use __packed __aligned(4) to avoid potential oopses.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
This patch is based on https://patchwork.kernel.org/patch/11397719/ which is accepted.
---
drivers/thermal/imx_sc_thermal.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
index 4955dfd..dbb277a 100644
--- a/drivers/thermal/imx_sc_thermal.c
+++ b/drivers/thermal/imx_sc_thermal.c
@@ -27,12 +27,12 @@ struct imx_sc_sensor {
struct req_get_temp {
u16 resource_id;
u8 type;
-} __packed;
+} __packed __aligned(4);
struct resp_get_temp {
u16 celsius;
u8 tenths;
-} __packed;
+} __packed __aligned(4);
struct imx_sc_msg_misc_get_temp {
struct imx_sc_rpc_msg hdr;
@@ -40,7 +40,7 @@ struct imx_sc_msg_misc_get_temp {
struct req_get_temp req;
struct resp_get_temp resp;
} data;
-};
+} __packed __aligned(4);
static int imx_sc_thermal_get_temp(void *data, int *temp)
{
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] thermal: imx_sc_thermal: Align imx sc thermal msg structs to 4
2020-03-02 2:51 [PATCH] thermal: imx_sc_thermal: Align imx sc thermal msg structs to 4 Anson Huang
@ 2020-03-02 8:54 ` Daniel Lezcano
0 siblings, 0 replies; 2+ messages in thread
From: Daniel Lezcano @ 2020-03-02 8:54 UTC (permalink / raw)
To: Anson Huang, rui.zhang, amit.kucheria, shawnguo, s.hauer, kernel,
festevam, linux-pm, linux-arm-kernel, linux-kernel
Cc: Linux-imx
On 02/03/2020 03:51, Anson Huang wrote:
> The i.MX SCU API strongly assumes that messages are composed out
> of 4-bytes words but some of our message structs have odd sizeofs,
> use __packed __aligned(4) to avoid potential oopses.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> ---
Applied, thanks
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