netdev - [PATCH v2 08/12] can: lin: Add special frame id for rx offload config

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Message-Id: <20240502075534.882628-9-christoph.fritz@hexdev.de>
Date: Thu,  2 May 2024 09:55:30 +0200
From: Christoph Fritz <christoph.fritz@...dev.de>
To: Oliver Hartkopp <socketcan@...tkopp.net>,
	Marc Kleine-Budde <mkl@...gutronix.de>,
	Vincent Mailhol <mailhol.vincent@...adoo.fr>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <bentiss@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Sebastian Reichel <sre@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>
Cc: Andreas Lauser <andreas.lauser@...cedes-benz.com>,
	Jonathan Corbet <corbet@....net>,
	Pavel Pisa <pisa@....felk.cvut.cz>,
	linux-can@...r.kernel.org,
	netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-input@...r.kernel.org,
	linux-serial@...r.kernel.org
Subject: [PATCH v2 08/12] can: lin: Add special frame id for rx offload config

A LIN bus supports up to 64 identifiers in one byte. This commit adds a
special frame ID, beyond the actual LIN identifiers, for signaling RX
offload configuration requests. This ID will be utilized in future LIN
enhancements to the CAN broadcast manager.

Signed-off-by: Christoph Fritz <christoph.fritz@...dev.de>
---
 include/net/lin.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/net/lin.h b/include/net/lin.h
index 944e775c40e79..e7c7c820a6e18 100644
--- a/include/net/lin.h
+++ b/include/net/lin.h
@@ -19,6 +19,7 @@
 
 #define LIN_ID_MASK		GENMASK(5, 0)
 /* special ID descriptions for LIN */
+#define LIN_RXOFFLOAD_DATA_FLAG	0x00000200U
 #define LIN_ENHANCED_CKSUM_FLAG	0x00000100U
 
 extern u8 lin_get_id_parity(u8 id);
-- 
2.39.2