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From e6866ed4219b8c7754dcd3eb1a654f6f524b0e56 Mon Sep 17 00:00:00 2001
From: "Johnny S. Lee" <foss@jsl.io>
Date: Thu, 15 Dec 2022 17:49:04 +0800
Subject: [PATCH] net: dsa: mv88e6xxx: depend on PTP conditionally
PTP hardware timestamping related objects are not linked when PTP
support for MV88E6xxx (NET_DSA_MV88E6XXX_PTP) is disabled, therefore
NET_DSA_MV88E6XXX should not depend on PTP_1588_CLOCK_OPTIONAL
regardless of NET_DSA_MV88E6XXX_PTP.
Instead, condition more strictly on how NET_DSA_MV88E6XXX_PTP's
dependencies are met, making sure that it cannot be enabled when
NET_DSA_MV88E6XXX=y and PTP_1588_CLOCK=m.
In other words, this commit allows NET_DSA_MV88E6XXX to be built-in
while PTP_1588_CLOCK is a module, as long as NET_DSA_MV88E6XXX_PTP is
prevented from being enabled.
Fixes: e5f31552674e ("ethernet: fix PTP_1588_CLOCK dependencies")
Signed-off-by: Johnny S. Lee <foss@jsl.io>
---
drivers/net/dsa/mv88e6xxx/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/dsa/mv88e6xxx/Kconfig
+++ b/drivers/net/dsa/mv88e6xxx/Kconfig
@@ -2,7 +2,6 @@
config NET_DSA_MV88E6XXX
tristate "Marvell 88E6xxx Ethernet switch fabric support"
depends on NET_DSA
- depends on PTP_1588_CLOCK_OPTIONAL
select IRQ_DOMAIN
select NET_DSA_TAG_EDSA
select NET_DSA_TAG_DSA
@@ -13,7 +12,8 @@ config NET_DSA_MV88E6XXX
config NET_DSA_MV88E6XXX_PTP
bool "PTP support for Marvell 88E6xxx"
default n
- depends on NET_DSA_MV88E6XXX && PTP_1588_CLOCK
+ depends on (NET_DSA_MV88E6XXX = y && PTP_1588_CLOCK = y) || \
+ (NET_DSA_MV88E6XXX = m && PTP_1588_CLOCK)
help
Say Y to enable PTP hardware timestamping on Marvell 88E6xxx switch
chips that support it.
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