[PATCH v10 1/3] tty: hvc: use correct dma alignment size
From: Xianting Tian <hidden>
Date: 2021-10-09 11:48:40
Also in:
lkml
Subsystem:
hypervisor virtual console driver, the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Use L1_CACHE_BYTES as the dma alignment size, use 'sizeof(long)' is wrong. Signed-off-by: Xianting Tian <redacted> Reviewed-by: Shile Zhang <redacted> --- drivers/tty/hvc/hvc_console.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 5bb8c4e44..5957ab728 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c@@ -49,7 +49,7 @@ #define N_OUTBUF 16 #define N_INBUF 16 -#define __ALIGNED__ __attribute__((__aligned__(sizeof(long)))) +#define __ALIGNED__ __attribute__((__aligned__(L1_CACHE_BYTES))) static struct tty_driver *hvc_driver; static struct task_struct *hvc_task;
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2.17.1