linux-kernel - Re: [PATCH 2/2] drm/panel: Promote warn_dev to WARN for invalid calls in drm

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Message-ID: <4878769.GXAFRqVoOG@mephi-laptop>
Date: Mon, 25 Mar 2024 08:46:16 -0400
From: Emilio Mendoza Reyes <emendoz@...lemson.edu>
To: neil.armstrong@...aro.org, dianders@...omium.org,
 linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 Jani Nikula <jani.nikula@...ux.intel.com>
Subject:
 Re: [PATCH 2/2] drm/panel: Promote warn_dev to WARN for invalid calls in
 drm_panel.c

On Monday, March 25, 2024 5:37:52 AM EDT Jani Nikula wrote:
> Please use git format-patch and/or send-email to send patches, without
> the inline PGP.
Yeah, sorry about that. I only noticed it was inline PGP after I sent the
patches. I didn't know if it would be okay to resend right after since I
didn't want to email spam. Sorry!

> Please use dev_WARN() which will handle the device specific warns for
> you, including dev_name().
Alright I changed my patch to use dev_WARN. The new version is at the
end of this email. Thank you for your time. Let me know if I there is
anything else to change.

Thanks,
EMR


Subject: [PATCH] drm/panel: Promote warn_dev to dev_WARN for invalid calls in
 drm_panel.c

Partially solve todo in kernel doc by promoting dev_warn calls to
dev_WARN.
Link: https://www.kernel.org/doc/html/v6.8/gpu/todo.html#clean-up-checks-for-already-prepared-enabled-in-panels

Signed-off-by: Emilio Mendoza Reyes <emendoz@...mson.edu>
---
 drivers/gpu/drm/drm_panel.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c
index cfbe020de54e..4459f4f5fe66 100644
--- a/drivers/gpu/drm/drm_panel.c
+++ b/drivers/gpu/drm/drm_panel.c
@@ -114,7 +114,7 @@ int drm_panel_prepare(struct drm_panel *panel)
 		return -EINVAL;
 
 	if (panel->prepared) {
-		dev_warn(panel->dev, "Skipping prepare of already prepared panel\n");
+		dev_WARN(panel->dev, "Unexpected attempt to prepare an already prepared panel\n");
 		return 0;
 	}
 
@@ -162,7 +162,7 @@ int drm_panel_unprepare(struct drm_panel *panel)
 		return -EINVAL;
 
 	if (!panel->prepared) {
-		dev_warn(panel->dev, "Skipping unprepare of already unprepared panel\n");
+		dev_WARN(panel->dev, "Unexpected attempt to unprepare an already unprepared panel\n");
 		return 0;
 	}
 
@@ -208,7 +208,7 @@ int drm_panel_enable(struct drm_panel *panel)
 		return -EINVAL;
 
 	if (panel->enabled) {
-		dev_warn(panel->dev, "Skipping enable of already enabled panel\n");
+		dev_WARN(panel->dev, "Unexpected attempt to enable an already enabled panel\n");
 		return 0;
 	}
 
@@ -246,7 +246,7 @@ int drm_panel_disable(struct drm_panel *panel)
 		return -EINVAL;
 
 	if (!panel->enabled) {
-		dev_warn(panel->dev, "Skipping disable of already disabled panel\n");
+		dev_WARN(panel->dev, "Unexpected attempt to disable an already disabled panel\n");
 		return 0;
 	}
 
-- 
2.44.0


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