Hi fengguang,
This is because cfg80211 is built as module but wilc1000 is built into the Kernel.
Arnd have posted patch series, not yet applied, which also can fix this Kconfig issue.
[PATCH 17/19] staging/wilc1000: split out bus specific modules
regards,
glen lee.
On 2015년 11월 18일 10:24, kbuild test robot wrote:
Hi Glen,
It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git staging-testing
head: 34d96c0dedbfbba50349dcc76546a86ad59a0789
commit: b22fa80cdbf4ff1056ecddb4efdcc0ede5f5f422 [203/406] staging: wilc1000: fix kbuild test robot error
config: x86_64-randconfig-s4-11180810 (attached as .config)
reproduce:
git checkout b22fa80cdbf4ff1056ecddb4efdcc0ede5f5f422
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/built-in.o: In function `mgmt_tx_cancel_wait':
wilc_wfi_cfgoperations.c:(.text+0x383ddd): undefined reference to `cfg80211_remain_on_channel_expired'
drivers/built-in.o: In function `WILC_WFI_RemainOnChannelExpired':
wilc_wfi_cfgoperations.c:(.text+0x383ebb): undefined reference to `cfg80211_remain_on_channel_expired'
drivers/built-in.o: In function `WILC_WFI_RemainOnChannelReady':
wilc_wfi_cfgoperations.c:(.text+0x38427a): undefined reference to `cfg80211_ready_on_channel'
drivers/built-in.o: In function `set_channel':
wilc_wfi_cfgoperations.c:(.text+0x3862db): undefined reference to `ieee80211_frequency_to_channel'
drivers/built-in.o: In function `refresh_scan':
(.text+0x38a099): undefined reference to `ieee80211_channel_to_frequency'
drivers/built-in.o: In function `refresh_scan':
(.text+0x38a0aa): undefined reference to `__ieee80211_get_channel'
drivers/built-in.o: In function `refresh_scan':
(.text+0x38a1a2): undefined reference to `cfg80211_inform_bss_data'
drivers/built-in.o: In function `refresh_scan':
(.text+0x38a1bf): undefined reference to `cfg80211_put_bss'
drivers/built-in.o: In function `CfgConnectResult':
wilc_wfi_cfgoperations.c:(.text+0x38bd64): undefined reference to `cfg80211_connect_result'
wilc_wfi_cfgoperations.c:(.text+0x38bf8b): undefined reference to `cfg80211_disconnected'
drivers/built-in.o: In function `scan':
wilc_wfi_cfgoperations.c:(.text+0x38c0a3): undefined reference to `ieee80211_frequency_to_channel'
drivers/built-in.o: In function `CfgScanResult':
wilc_wfi_cfgoperations.c:(.text+0x38cd3d): undefined reference to `ieee80211_channel_to_frequency'
wilc_wfi_cfgoperations.c:(.text+0x38cd4e): undefined reference to `__ieee80211_get_channel'
wilc_wfi_cfgoperations.c:(.text+0x38d029): undefined reference to `cfg80211_inform_bss_data'
wilc_wfi_cfgoperations.c:(.text+0x38d046): undefined reference to `cfg80211_put_bss'
wilc_wfi_cfgoperations.c:(.text+0x38d463): undefined reference to `cfg80211_scan_done'
wilc_wfi_cfgoperations.c:(.text+0x38d5af): undefined reference to `cfg80211_scan_done'
drivers/built-in.o: In function `WILC_WFI_p2p_rx':
(.text+0x38ef01): undefined reference to `cfg80211_mgmt_tx_status'
drivers/built-in.o: In function `WILC_WFI_p2p_rx':
(.text+0x38efe1): undefined reference to `cfg80211_mgmt_tx_status'
drivers/built-in.o: In function `WILC_WFI_p2p_rx':
(.text+0x38f09b): undefined reference to `cfg80211_mgmt_tx_status'
drivers/built-in.o: In function `WILC_WFI_p2p_rx':
(.text+0x38f138): undefined reference to `ieee80211_channel_to_frequency'
drivers/built-in.o: In function `WILC_WFI_p2p_rx':
(.text+0x38f87d): undefined reference to `cfg80211_rx_mgmt'
drivers/built-in.o: In function `WILC_WFI_p2p_rx':
(.text+0x38f925): undefined reference to `cfg80211_rx_mgmt'
drivers/built-in.o: In function `WILC_WFI_CfgAlloc':
(.text+0x38fb10): undefined reference to `wiphy_new_nm'
drivers/built-in.o: In function `wilc_create_wiphy':
(.text+0x38fecf): undefined reference to `wiphy_register'
drivers/built-in.o: In function `wilc_free_wiphy':
(.text+0x39062a): undefined reference to `wiphy_unregister'
drivers/built-in.o: In function `wilc_free_wiphy':
(.text+0x3906b9): undefined reference to `wiphy_free'
net/built-in.o: In function `nf_dup_ipv4':
(.text+0x152f5b): undefined reference to `nf_conntrack_untracked'
net/built-in.o: In function `nf_dup_ipv4':
(.text+0x152f82): undefined reference to `nf_conntrack_untracked'
---
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