When operating a pipeline with a missing V4L2_CID_LINK_FREQ control this
two line warning is printed each time the pipeline is started. Reduce
this excessive logging by only warning once for the missing control.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-common.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 4ee4aa19efe6..09412989f9b3 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -497,10 +497,10 @@ s64 __v4l2_get_link_freq_ctrl(struct v4l2_ctrl_handler *handler,
freq = div_u64(v4l2_ctrl_g_ctrl_int64(ctrl) * mul, div);
- pr_warn("%s: Link frequency estimated using pixel rate: result might be inaccurate\n",
- __func__);
- pr_warn("%s: Consider implementing support for V4L2_CID_LINK_FREQ in the transmitter driver\n",
- __func__);
+ pr_warn_once("%s: Link frequency estimated using pixel rate: result might be inaccurate\n",
+ __func__);
+ pr_warn_once("%s: Consider implementing support for V4L2_CID_LINK_FREQ in the transmitter driver\n",
+ __func__);
}
return freq > 0 ? freq : -EINVAL;
--
2.49.0
