[PATCH v2 7/8] rtc: imx-sc: Align imx sc msg structs to 4
From: Leonard Crestez <hidden>
Date: 2020-02-20 16:29:54
Also in:
linux-clk, linux-gpio, linux-rtc
Subsystem:
real time clock (rtc) subsystem, the rest · Maintainers:
Alexandre Belloni, Linus Torvalds
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: a3094fc1a15e ("rtc: imx-sc: add rtc alarm support")
Signed-off-by: Leonard Crestez <redacted>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/rtc/rtc-imx-sc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-imx-sc.c b/drivers/rtc/rtc-imx-sc.c
index cf2c12107f2b..a5f59e6f862e 100644
--- a/drivers/rtc/rtc-imx-sc.c
+++ b/drivers/rtc/rtc-imx-sc.c@@ -35,11 +35,11 @@ struct imx_sc_msg_timer_rtc_set_alarm { u8 mon; u8 day; u8 hour; u8 min; u8 sec; -} __packed; +} __packed __aligned(4); static int imx_sc_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct imx_sc_msg_timer_get_rtc_time msg; struct imx_sc_rpc_msg *hdr = &msg.hdr;
--
2.17.1
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