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    net: bgmac: clarify CONFIG_BCMA dependency · 1f820f53
    Arnd Bergmann 提交于
    The bgmac driver depends on BCMA_HOST_SOC, which is only used
    when CONFIG_BCMA is enabled. However, it is a bool option and can
    be set when CONFIG_BCMA=m, and then bgmac can be built-in, leading
    to an obvious link error:
    
    drivers/built-in.o: In function `bgmac_init':
    :(.init.text+0x7f2c): undefined reference to `__bcma_driver_register'
    drivers/built-in.o: In function `bgmac_exit':
    :(.exit.text+0x110a): undefined reference to `bcma_driver_unregister'
    
    To avoid this case, we need to depend on both BCMA and BCMA_SOC,
    as this patch does. I'm also trying to make the dependency more
    readable by splitting it into three lines, and adding a COMPILE_TEST
    alternative so we can test-build it in all configurations that
    support BCMA.
    
    The added dependency on FIXED_PHY addresses a related issue where
    we cannot call fixed_phy_register() when CONFIG_FIXED_PHY=m and
    CONFIG_BGMAC=y.
    Signed-off-by: NArnd Bergmann <arnd@arndb.de>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    1f820f53
Kconfig 5.5 KB