Hello test robot, Thanks for your mail. On Wed, Mar 23, 2022 at 12:48:28PM +0800, kernel test robot wrote: > Hi Luiz, > > First bad commit (maybe != root cause): > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: f8833a2b23562be2dae91775127c8014c44d8566 > commit: 765c39a4fafe6f7ea0d370aa5f30c811579cf8eb [2075/14215] net: dsa: realtek: convert subdrivers into modules > config: s390-randconfig-r005-20220323 (https://download.01.org/0day-ci/archive/20220323/202203231233.Xx73Y40o-lkp@xxxxxxxxx/config) Looking at this config... | # CONFIG_OF is not set I think this is the problem. I guess something like this should do the trick: diff --git a/drivers/net/dsa/realtek/Kconfig b/drivers/net/dsa/realtek/Kconfig index cd1aa95b7bf0..5ff11dcc512f 100644 --- a/drivers/net/dsa/realtek/Kconfig +++ b/drivers/net/dsa/realtek/Kconfig @@ -12,6 +12,7 @@ menuconfig NET_DSA_REALTEK config NET_DSA_REALTEK_SMI tristate "Realtek SMI connected switch driver" depends on NET_DSA_REALTEK + depends on OF default y help Select to enable support for registering switches connected Ditto for realtek-mdio. We are using OF in both drivers. I'll send a patch. Kind regards, Alvin > >> drivers/net/dsa/realtek/realtek-smi.c:496:34: warning: unused variable 'realtek_smi_of_match' [-Wunused-const-variable] > static const struct of_device_id realtek_smi_of_match[] = { > ^ > 13 warnings generated. > > > vim +/realtek_smi_of_match +496 drivers/net/dsa/realtek/realtek-smi.c > > 0650bf52b31ff35 drivers/net/dsa/realtek-smi-core.c Vladimir Oltean 2021-09-17 495 > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 @496 static const struct of_device_id realtek_smi_of_match[] = { > 765c39a4fafe6f7 drivers/net/dsa/realtek/realtek-smi.c Luiz Angelo Daros de Luca 2022-01-28 497 #if IS_ENABLED(CONFIG_NET_DSA_REALTEK_RTL8366RB) > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 498 { > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 499 .compatible = "realtek,rtl8366rb", > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 500 .data = &rtl8366rb_variant, > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 501 }, > 765c39a4fafe6f7 drivers/net/dsa/realtek/realtek-smi.c Luiz Angelo Daros de Luca 2022-01-28 502 #endif > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 503 { > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 504 /* FIXME: add support for RTL8366S and more */ > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 505 .compatible = "realtek,rtl8366s", > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 506 .data = NULL, > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 507 }, > 765c39a4fafe6f7 drivers/net/dsa/realtek/realtek-smi.c Luiz Angelo Daros de Luca 2022-01-28 508 #if IS_ENABLED(CONFIG_NET_DSA_REALTEK_RTL8365MB) > 4af2950c50c8634 drivers/net/dsa/realtek-smi-core.c Alvin Šipraga 2021-10-18 509 { > 4af2950c50c8634 drivers/net/dsa/realtek-smi-core.c Alvin Šipraga 2021-10-18 510 .compatible = "realtek,rtl8365mb", > 4af2950c50c8634 drivers/net/dsa/realtek-smi-core.c Alvin Šipraga 2021-10-18 511 .data = &rtl8365mb_variant, > 4af2950c50c8634 drivers/net/dsa/realtek-smi-core.c Alvin Šipraga 2021-10-18 512 }, > 765c39a4fafe6f7 drivers/net/dsa/realtek/realtek-smi.c Luiz Angelo Daros de Luca 2022-01-28 513 #endif > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 514 { /* sentinel */ }, > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 515 }; > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 516 MODULE_DEVICE_TABLE(of, realtek_smi_of_match); > d8652956cf37c5c drivers/net/dsa/realtek-smi.c Linus Walleij 2018-07-14 517 > > :::::: The code at line 496 was first introduced by commit > :::::: d8652956cf37c5caa8c19e0b99ce5ca235c6d5de net: dsa: realtek-smi: Add Realtek SMI driver > > :::::: TO: Linus Walleij <linus.walleij@xxxxxxxxxx> > :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> > > -- > 0-DAY CI Kernel Test Service > https://01.org/lkp >