diff mbox series

[v4,1/3,RESEND] media: camss: vfe: Use trace_printk for debugging only

Message ID 20200820170951.v4.1.Ia54fe801f246a0b0aee36fb1f3bfb0922a8842b0@changeid
State New
Headers show
Series [v4,1/3,RESEND] media: camss: vfe: Use trace_printk for debugging only | expand

Commit Message

Nicolas Boichat Aug. 20, 2020, 9:14 a.m. UTC
trace_printk should not be used in production code. Since
tracing interrupts is presumably latency sensitive, pr_dbg is
not appropriate, so guard the call with a preprocessor symbol
that can be defined for debugging purpose.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
---

(resending this patch as part of the whole series, since we need a new
patch 3/3 now).

 drivers/media/platform/qcom/camss/camss-vfe-4-1.c | 2 ++
 drivers/media/platform/qcom/camss/camss-vfe-4-7.c | 2 ++
 2 files changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
index 174a36be6f5d866..0c57171fae4f9e9 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
@@ -936,8 +936,10 @@  static irqreturn_t vfe_isr(int irq, void *dev)
 
 	vfe->ops->isr_read(vfe, &value0, &value1);
 
+#ifdef CAMSS_VFE_TRACE_IRQ
 	trace_printk("VFE: status0 = 0x%08x, status1 = 0x%08x\n",
 		     value0, value1);
+#endif
 
 	if (value0 & VFE_0_IRQ_STATUS_0_RESET_ACK)
 		vfe->isr_ops.reset_ack(vfe);
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
index 0dca8bf9281e774..307675925e5c779 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
@@ -1058,8 +1058,10 @@  static irqreturn_t vfe_isr(int irq, void *dev)
 
 	vfe->ops->isr_read(vfe, &value0, &value1);
 
+#ifdef CAMSS_VFE_TRACE_IRQ
 	trace_printk("VFE: status0 = 0x%08x, status1 = 0x%08x\n",
 		     value0, value1);
+#endif
 
 	if (value0 & VFE_0_IRQ_STATUS_0_RESET_ACK)
 		vfe->isr_ops.reset_ack(vfe);