netdev - [PATCH -net] igc: fix build errors for PTP

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Message-Id: <20210917210547.12578-1-rdunlap@infradead.org>
Date:   Fri, 17 Sep 2021 14:05:47 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     netdev@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Ederson de Souza <ederson.desouza@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        intel-wired-lan@...ts.osuosl.org
Subject: [PATCH -net] igc: fix build errors for PTP

When IGC=y and PTP_1588_CLOCK=m, the ptp_*() interface family is
not available to the igc driver. Make this driver depend on
PTP_1588_CLOCK_OPTIONAL so that it will build without errors.

Various igc commits have used ptp_*() functions without checking
that PTP_1588_CLOCK is enabled. Fix all of these here.

Fixes these build errors:

ld: drivers/net/ethernet/intel/igc/igc_main.o: in function `igc_msix_other':
igc_main.c:(.text+0x6494): undefined reference to `ptp_clock_event'
ld: igc_main.c:(.text+0x64ef): undefined reference to `ptp_clock_event'
ld: igc_main.c:(.text+0x6559): undefined reference to `ptp_clock_event'
ld: drivers/net/ethernet/intel/igc/igc_ethtool.o: in function `igc_ethtool_get_ts_info':
igc_ethtool.c:(.text+0xc7a): undefined reference to `ptp_clock_index'
ld: drivers/net/ethernet/intel/igc/igc_ptp.o: in function `igc_ptp_feature_enable_i225':
igc_ptp.c:(.text+0x330): undefined reference to `ptp_find_pin'
ld: igc_ptp.c:(.text+0x36f): undefined reference to `ptp_find_pin'
ld: drivers/net/ethernet/intel/igc/igc_ptp.o: in function `igc_ptp_init':
igc_ptp.c:(.text+0x11cd): undefined reference to `ptp_clock_register'
ld: drivers/net/ethernet/intel/igc/igc_ptp.o: in function `igc_ptp_stop':
igc_ptp.c:(.text+0x12dd): undefined reference to `ptp_clock_unregister'
ld: drivers/platform/x86/dell/dell-wmi-privacy.o: in function `dell_privacy_wmi_probe':

Fixes: 64433e5bf40ab ("igc: Enable internal i225 PPS")
Fixes: 60dbede0c4f3d ("igc: Add support for ethtool GET_TS_INFO command")
Fixes: 87938851b6efb ("igc: enable auxiliary PHC functions for the i225")
Fixes: 5f2958052c582 ("igc: Add basic skeleton for PTP")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Ederson de Souza <ederson.desouza@...el.com>
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>
Cc: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
Cc: intel-wired-lan@...ts.osuosl.org
---
 drivers/net/ethernet/intel/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20210917.orig/drivers/net/ethernet/intel/Kconfig
+++ linux-next-20210917/drivers/net/ethernet/intel/Kconfig
@@ -335,6 +335,7 @@ config IGC
 	tristate "Intel(R) Ethernet Controller I225-LM/I225-V support"
 	default n
 	depends on PCI
+	depends on PTP_1588_CLOCK_OPTIONAL
 	help
 	  This driver supports Intel(R) Ethernet Controller I225-LM/I225-V
 	  family of adapters.