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Date: Thu, 8 Nov 2018 16:46:52 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: kbuild test robot <lkp@...el.com>, Arnd Bergmann <arnd@...db.de>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org,
Ganesh Goudar <ganeshgr@...lsio.com>,
David Miller <davem@...emloft.net>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c:96: undefined
reference to `thermal_zone_device_register'
[adding netdev + maintainers]
On 11/7/18 11:08 PM, kbuild test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 85758777c2a227fd1541b6dd122a08ab79c347ce
> commit: e70a57fa59bb7fefe063780a49e063d0d0f61863 cxgb4: fix thermal configuration dependencies
> date: 4 weeks ago
> config: x86_64-randconfig-s0-11081213 (attached as .config)
> compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
> reproduce:
> git checkout e70a57fa59bb7fefe063780a49e063d0d0f61863
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.o: In function `cxgb4_thermal_init':
>>> drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c:96: undefined reference to `thermal_zone_device_register'
> drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.o: In function `cxgb4_thermal_remove':
>>> drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c:112: undefined reference to `thermal_zone_device_unregister'
>
Hi,
There was a Kconfig WARNING (clue!) before the build errors:
WARNING: unmet direct dependencies detected for CHELSIO_T4
Depends on [m]: NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_CHELSIO [=y] && PCI [=y] && (IPV6 [=n] || IPV6 [=n]=n) && (THERMAL [=m] || !THERMAL [=m])
Selected by [y]:
- SCSI_CXGB4_ISCSI [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && PCI [=y] && INET [=y] && (IPV6 [=n] || IPV6 [=n]=n)
That says that the problem is with CONFIG_THERMAL=m while CONFIG_CHELSIO_T4=y.
This is caused by drivers/scsi/cxgbi/cxgb4i/Kconfig and its use of "select"
instead of "depends on":
config SCSI_CXGB4_ISCSI
tristate "Chelsio T4 iSCSI support"
depends on PCI && INET && (IPV6 || IPV6=n)
select NETDEVICES
select ETHERNET
select NET_VENDOR_CHELSIO
select CHELSIO_T4
select CHELSIO_LIB
select SCSI_ISCSI_ATTRS
---help---
This driver supports iSCSI offload for the Chelsio T4 devices.
> vim +96 drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
>
> b1871915 Ganesh Goudar 2018-10-09 72
> b1871915 Ganesh Goudar 2018-10-09 73 int cxgb4_thermal_init(struct adapter *adap)
> b1871915 Ganesh Goudar 2018-10-09 74 {
> b1871915 Ganesh Goudar 2018-10-09 75 struct ch_thermal *ch_thermal = &adap->ch_thermal;
> b1871915 Ganesh Goudar 2018-10-09 76 int num_trip = CXGB4_NUM_TRIPS;
> b1871915 Ganesh Goudar 2018-10-09 77 u32 param, val;
> b1871915 Ganesh Goudar 2018-10-09 78 int ret;
> b1871915 Ganesh Goudar 2018-10-09 79
> b1871915 Ganesh Goudar 2018-10-09 80 /* on older firmwares we may not get the trip temperature,
> b1871915 Ganesh Goudar 2018-10-09 81 * set the num of trips to 0.
> b1871915 Ganesh Goudar 2018-10-09 82 */
> b1871915 Ganesh Goudar 2018-10-09 83 param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
> b1871915 Ganesh Goudar 2018-10-09 84 FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
> b1871915 Ganesh Goudar 2018-10-09 85 FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_MAXTMPTHRESH));
> b1871915 Ganesh Goudar 2018-10-09 86
> b1871915 Ganesh Goudar 2018-10-09 87 ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
> b1871915 Ganesh Goudar 2018-10-09 88 ¶m, &val);
> b1871915 Ganesh Goudar 2018-10-09 89 if (ret < 0) {
> b1871915 Ganesh Goudar 2018-10-09 90 num_trip = 0; /* could not get trip temperature */
> b1871915 Ganesh Goudar 2018-10-09 91 } else {
> b1871915 Ganesh Goudar 2018-10-09 92 ch_thermal->trip_temp = val * 1000;
> b1871915 Ganesh Goudar 2018-10-09 93 ch_thermal->trip_type = THERMAL_TRIP_CRITICAL;
> b1871915 Ganesh Goudar 2018-10-09 94 }
> b1871915 Ganesh Goudar 2018-10-09 95
> b1871915 Ganesh Goudar 2018-10-09 @96 ch_thermal->tzdev = thermal_zone_device_register("cxgb4", num_trip,
> b1871915 Ganesh Goudar 2018-10-09 97 0, adap,
> b1871915 Ganesh Goudar 2018-10-09 98 &cxgb4_thermal_ops,
> b1871915 Ganesh Goudar 2018-10-09 99 NULL, 0, 0);
> b1871915 Ganesh Goudar 2018-10-09 100 if (IS_ERR(ch_thermal->tzdev)) {
> b1871915 Ganesh Goudar 2018-10-09 101 ret = PTR_ERR(ch_thermal->tzdev);
> b1871915 Ganesh Goudar 2018-10-09 102 dev_err(adap->pdev_dev, "Failed to register thermal zone\n");
> b1871915 Ganesh Goudar 2018-10-09 103 ch_thermal->tzdev = NULL;
> b1871915 Ganesh Goudar 2018-10-09 104 return ret;
> b1871915 Ganesh Goudar 2018-10-09 105 }
> b1871915 Ganesh Goudar 2018-10-09 106 return 0;
> b1871915 Ganesh Goudar 2018-10-09 107 }
> b1871915 Ganesh Goudar 2018-10-09 108
> b1871915 Ganesh Goudar 2018-10-09 109 int cxgb4_thermal_remove(struct adapter *adap)
> b1871915 Ganesh Goudar 2018-10-09 110 {
> b1871915 Ganesh Goudar 2018-10-09 111 if (adap->ch_thermal.tzdev)
> b1871915 Ganesh Goudar 2018-10-09 @112 thermal_zone_device_unregister(adap->ch_thermal.tzdev);
>
> :::::: The code at line 96 was first introduced by commit
> :::::: b187191577629b5358acf4e234809ee8d441ceb4 cxgb4: Add thermal zone support
>
> :::::: TO: Ganesh Goudar <ganeshgr@...lsio.com>
> :::::: CC: David S. Miller <davem@...emloft.net>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>
ciao.
--
~Randy
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