linux-kernel - [PATCH] net: ti: icssg-prueth: add PTP dependency

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Message-Id: <20230912185509.2430563-1-arnd@kernel.org>
Date:   Tue, 12 Sep 2023 20:54:51 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        MD Danish Anwar <danishanwar@...com>,
        Roger Quadros <rogerq@...com>
Cc:     Arnd Bergmann <arnd@...db.de>, Simon Horman <horms@...nel.org>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] net: ti: icssg-prueth: add PTP dependency

From: Arnd Bergmann <arnd@...db.de>

The driver can now use PTP if enabled but fails to link built-in
if PTP is a loadable module:

aarch64-linux-ld: drivers/net/ethernet/ti/icssg/icss_iep.o: in function `icss_iep_get_ptp_clock_idx':
icss_iep.c:(.text+0x200): undefined reference to `ptp_clock_index'

Add the usual dependency to avoid this.

Fixes: 186734c158865 ("net: ti: icssg-prueth: add packet timestamping and ptp support")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 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 7f3e2e96c6e20..26ddc26fc7b8d 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -201,6 +201,7 @@ config TI_ICSSG_PRUETH
 
 config TI_ICSS_IEP
 	tristate "TI PRU ICSS IEP driver"
+	depends on PTP_1588_CLOCK_OPTIONAL
 	depends on TI_PRUSS
 	default TI_PRUSS
 	help
-- 
2.39.2