Re: [PATCH] ANDROID: binder: remove 32-bit binder interface.

[Martijn Coenen]

On Sat, May 5, 2018 at 2:10 PM, kbuild test robot <lkp@xxxxxxxxx> wrote:
>    drivers/android/binder.o: In function `binder_thread_write':
>>> binder.c:(.text+0x6a16): undefined reference to `__get_user_bad'

Looks like m68k doesn't support 64-bit get_user(). I could just have
binder depend on !CONFIG_M68K, but there may be other architectures
still that don't support this. Another alternative would be to
whitelist the architectures Android supports - eg arm, arm64, x86,
x86_64. But I'm not sure if arch-limited drivers are considered bad
form. Does anybody have suggestions for how to deal with this?

Thanks,
Martijn

>    binder.c:(.text+0x6c9a): undefined reference to `__get_user_bad'
>    binder.c:(.text+0x701e): undefined reference to `__get_user_bad'
>    binder.c:(.text+0x7414): undefined reference to `__get_user_bad'
>
> ---
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