netdev - [PATCH net] net: ti: icssg-prueth: Add dependency on HSR

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Message-Id: <20260203-icssg-dep-v1-1-bacaf5234fb3@gmail.com>
Date: Tue, 03 Feb 2026 20:43:08 +0800
From: Kevin Hao <haokexin@...il.com>
To: netdev@...r.kernel.org
Cc: Kevin Hao <haokexin@...il.com>, stable@...r.kernel.org, 
 MD Danish Anwar <danishanwar@...com>, Roger Quadros <rogerq@...nel.org>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net] net: ti: icssg-prueth: Add dependency on HSR

Commit 95540ad6747c ("net: ti: icssg-prueth: Add support for HSR frame
forward offload") introduces support for offloading HSR frame forwarding,
which relies on functions such as is_hsr_master() provided by the HSR
module. Therefore, a dependency on HSR should be added for this driver.
Otherwise, the following build failures will occur when icssg-prueth is
built-in while HSR is configured as a module:
  ld.lld: error: undefined symbol: is_hsr_master
  >>> referenced by icssg_prueth.c:710 (drivers/net/ethernet/ti/icssg/icssg_prueth.c:710)
  >>>               drivers/net/ethernet/ti/icssg/icssg_prueth.o:(icssg_prueth_hsr_del_mcast) in archive vmlinux.a
  >>> referenced by icssg_prueth.c:681 (drivers/net/ethernet/ti/icssg/icssg_prueth.c:681)
  >>>               drivers/net/ethernet/ti/icssg/icssg_prueth.o:(icssg_prueth_hsr_add_mcast) in archive vmlinux.a
  >>> referenced by icssg_prueth.c:1812 (drivers/net/ethernet/ti/icssg/icssg_prueth.c:1812)
  >>>               drivers/net/ethernet/ti/icssg/icssg_prueth.o:(prueth_netdevice_event) in archive vmlinux.a

  ld.lld: error: undefined symbol: hsr_get_port_ndev
  >>> referenced by icssg_prueth.c:712 (drivers/net/ethernet/ti/icssg/icssg_prueth.c:712)
  >>>               drivers/net/ethernet/ti/icssg/icssg_prueth.o:(icssg_prueth_hsr_del_mcast) in archive vmlinux.a
  >>> referenced by icssg_prueth.c:712 (drivers/net/ethernet/ti/icssg/icssg_prueth.c:712)
  >>>               drivers/net/etherneteth_hsr_del_mcast) in archive vmlinux.a
  >>> referenced by icssg_prueth.c:683 (drivers/net/ethernet/ti/icssg/icssg_prueth.c:683)
  >>>               drivers/net/ethernet/ti/icssg/icssg_prueth.o:(icssg_prueth_hsr_add_mcast) in archive vmlinux.a
  >>> referenced 1 more times

Fixes: 95540ad6747c ("net: ti: icssg-prueth: Add support for HSR frame forward offload")
Signed-off-by: Kevin Hao <haokexin@...il.com>
Cc: stable@...r.kernel.org
---
Cc: MD Danish Anwar <danishanwar@...com>
Cc: Roger Quadros <rogerq@...nel.org>
Cc: Andrew Lunn <andrew+netdev@...n.ch>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Paolo Abeni <pabeni@...hat.com>
---
 drivers/net/ethernet/ti/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index fe5b2926d8ab060d83f5a58d91e749a45c6cea18..48aa3457fd6d7fd99147e4fb1148559d6fcba082 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -192,6 +192,7 @@ config TI_ICSSG_PRUETH
 	depends on NET_SWITCHDEV
 	depends on ARCH_K3 && OF && TI_K3_UDMA_GLUE_LAYER
 	depends on PTP_1588_CLOCK_OPTIONAL
+	depends on HSR
 	help
 	  Support dual Gigabit Ethernet ports over the ICSSG PRU Subsystem.
 	  This subsystem is available starting with the AM65 platform.

---
base-commit: 193579fe01389bc21aff0051d13f24e8ea95b47d
change-id: 20260203-icssg-dep-b9f7fc2be11e

Best regards,
-- 
Kevin Hao <haokexin@...il.com>