clear-pkgs-linux-iot-lts2018/0566-vhm-change-trace_print...

33 lines
1.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shuo Liu <shuo.a.liu@intel.com>
Date: Sat, 29 Sep 2018 11:00:46 +0800
Subject: [PATCH] vhm: change trace_printk of vhm_dev_ioctl to pr_debug
trace_printk will write into the ring buffer by default. Actually, we
don't need this trace entry as there are many vhm ioctls happen at
runtime which will flood the ring buffer. So change it to dynamic printk.
Tracked-On: projectacrn/acrn-hypervisor#1328
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
---
drivers/char/vhm/vhm_dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/vhm/vhm_dev.c b/drivers/char/vhm/vhm_dev.c
index 0d25f73..987c7ce 100644
--- a/drivers/char/vhm/vhm_dev.c
+++ b/drivers/char/vhm/vhm_dev.c
@@ -160,7 +160,7 @@ static long vhm_dev_ioctl(struct file *filep,
struct ic_ptdev_irq ic_pt_irq;
struct hc_ptdev_irq hc_pt_irq;
- trace_printk("[%s] ioctl_num=0x%x\n", __func__, ioctl_num);
+ pr_debug("[%s] ioctl_num=0x%x\n", __func__, ioctl_num);
if (ioctl_num == IC_GET_API_VERSION) {
struct api_version api_version;
--
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