From 72064c30574df63d52c3d0baeb9f9b585064f548 Mon Sep 17 00:00:00 2001
From: Evgeni Raikhel <evgeni.raikhel@intel.com>
Date: Thu, 30 Aug 2018 17:29:13 +0300
Subject: [PATCH] Debug ioctl fmt desc

The patch is useful to profile kernel calls invocation after applying kernel patches

---
 drivers/media/v4l2-core/v4l2-ioctl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index cab63bb..e8b6590 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1105,6 +1105,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
 	const char *descr = NULL;
 	u32 flags = 0;
 
+	printk(KERN_DEBUG "LRS dbg: read format description for pixel_format: %x\n",
+					fmt->pixelformat);
+
 	/*
 	 * We depart from the normal coding style here since the descriptions
 	 * should be aligned so it is easy to see which descriptions will be
-- 
2.7.4