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cpsw/netcp: work around reverse cpts dependency 

The dependency is reversed: cpsw and netcp call into cpts,
but cpts depends on the other two in Kconfig. This can lead
to cpts being a loadable module and its callers built-in:

drivers/net/ethernet/ti/cpsw.o: In function `cpsw_remove':
cpsw.c:(.text.cpsw_remove+0xd0): undefined reference to `cpts_release'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_rx_handler':
cpsw.c:(.text.cpsw_rx_handler+0x2dc): undefined reference to `cpts_rx_timestamp'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_tx_handler':
cpsw.c:(.text.cpsw_tx_handler+0x7c): undefined reference to `cpts_tx_timestamp'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_ndo_stop':

As a workaround, I'm introducing another Kconfig symbol to
control the compilation of cpts, while making the actual
module controlled by a silent symbol that is =y when necessary.

Fixes: 6246168b4a ("net: ethernet: ti: netcp: add support of cpts")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2017-03-20 09:52:50 +01:00 committed by David S. Miller
parent 8fb106b28c
commit be9ca0d33c
2 changed files with 8 additions and 2 deletions
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8
drivers/net/ethernet/ti/Kconfig
View File

@ -74,7 +74,7 @@ config TI_CPSW
will be called cpsw.
config TI_CPTS
tristate "TI Common Platform Time Sync (CPTS) Support"
bool "TI Common Platform Time Sync (CPTS) Support"
depends on TI_CPSW || TI_KEYSTONE_NETCP
imply PTP_1588_CLOCK
---help---
@ -83,6 +83,12 @@ config TI_CPTS
The unit can time stamp PTP UDP/IPv4 and Layer 2 packets, and the
driver offers a PTP Hardware Clock.
config TI_CPTS_MOD
tristate
depends on TI_CPTS
default y if TI_CPSW=y || TI_KEYSTONE_NETCP=y
default m
config TI_KEYSTONE_NETCP
tristate "TI Keystone NETCP Core Support"
select TI_CPSW_ALE

2
drivers/net/ethernet/ti/Makefile
View File

@ -12,7 +12,7 @@ obj-$(CONFIG_TI_DAVINCI_MDIO) += davinci_mdio.o
obj-$(CONFIG_TI_DAVINCI_CPDMA) += davinci_cpdma.o
obj-$(CONFIG_TI_CPSW_PHY_SEL) += cpsw-phy-sel.o
obj-$(CONFIG_TI_CPSW_ALE) += cpsw_ale.o
obj-$(CONFIG_TI_CPTS) += cpts.o
obj-$(CONFIG_TI_CPTS_MOD) += cpts.o
obj-$(CONFIG_TI_CPSW) += ti_cpsw.o
ti_cpsw-y := cpsw.o