From nobody Sat Oct 4 08:03:32 2025 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AB0D01DF273 for ; Tue, 19 Aug 2025 09:42:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755596567; cv=none; b=Iru3Eu6nV3VdKghpHOn2WNaO7Ibt6+Pz4U9ORXdaOyCUfH6WqIN/ScmnlZJB8zOOfQCNERrPev/asAEf9CXV12Nw2vbPegplG/KtqMxD/9f332Rdkz2fgvSDXcYMafvfp+jJWnRk5D10SPA4WlQODXeZcsZwuKjSDGKVoxNXEns= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755596567; c=relaxed/simple; bh=oBgHnl9exEXWTWzH77dkHQ9PKnz6enJdL62Q0xnTEAk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=WRE3Zna7vO7Vl/HiH8Kqoy1iUMeE+tv91FyGGdy0oiQQzt8S73RYuCDyik5FB+y4puyQXhYjqhxuHxCvxwHGoY2P9JJowJwfIzx3US6LB28cCbEmnqUQCwO9Q32+C/rPagCbrCRG/jvwMdfQici0/B4iVO3uBcd0cS/EwHJ1joI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=0LQ22EOg; arc=none smtp.client-ip=185.246.84.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="0LQ22EOg" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 83C6C1A0936; Tue, 19 Aug 2025 09:42:38 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 5D13060697; Tue, 19 Aug 2025 09:42:38 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 4FE601C229658; Tue, 19 Aug 2025 11:42:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1755596557; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=Wa0v0I2WqdC2JdYUW2NKyiKEQHDcnZtT8SCNn2TfAc4=; b=0LQ22EOgk5GVpkH9IfifatUNtMldEUwsOiuSwTXpO7WVrMzhz2LvrxuF4ktPFKHsfwJ3N2 4oU3Zob9XF+EVOoduBCISazBkoeG5NLasDQk0eoDc98CwH9N98yn/lS5sEV8n0xakc2/R3 v4DjKhKa0aeNQQDKTpA1FcRBE+3nTiN1pkWyyai0lNbbZfJ8uc4s8jQo8qwIi5vbpSVKRY 7RhFusriqRJRSxk9g0Y/UHajnM9B1eNP7a1yPh4LemwA96JBQTbU+ICRsm+XSXBLqOLgqc BijX9x/V2fDtBO2HCI5XnSediPhSdDFDF14judjeVxJKJJ2ZJvUMcFAw6qTkYg== From: Luca Ceresoli Date: Tue, 19 Aug 2025 11:42:10 +0200 Subject: [PATCH v7 1/3] drm/debugfs: bridges_show: show refcount Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250819-drm-bridge-debugfs-removed-v7-1-970702579978@bootlin.com> References: <20250819-drm-bridge-debugfs-removed-v7-0-970702579978@bootlin.com> In-Reply-To: <20250819-drm-bridge-debugfs-removed-v7-0-970702579978@bootlin.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Hui Pu , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Luca Ceresoli , Dmitry Baryshkov X-Mailer: b4 0.14.2 X-Last-TLS-Session-Version: TLSv1.3 Now that bridges are refcounted, exposing the refcount in debugfs can be useful. Suggested-by: Dmitry Baryshkov Signed-off-by: Luca Ceresoli Reviewed-by: Maxime Ripard --- Changes in v7: - rebased on current code: - code is in drm_bridge.c now - removed if (drm_bridge_is_refcounted(bridge)), refcounting is not optional This patch was added in v6. --- drivers/gpu/drm/drm_bridge.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 0688f936eeb69d9f5655f2b00de4a0843dc76088..36e0829d25c29457cff5da5fec9= 9646c74b6ad5a 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -1477,6 +1477,9 @@ static void drm_bridge_debugfs_show_bridge(struct drm= _printer *p, unsigned int idx) { drm_printf(p, "bridge[%u]: %ps\n", idx, bridge->funcs); + + drm_printf(p, "\trefcount: %u\n", kref_read(&bridge->refcount)); + drm_printf(p, "\ttype: [%d] %s\n", bridge->type, drm_get_connector_type_name(bridge->type)); --=20 2.50.1