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SubjectRe: [PATCH] ANDROID: binder: remove 32-bit binder interface.
On Fri, May 11, 2018 at 09:57:52AM +0200, Martijn Coenen wrote:
> On Sat, May 5, 2018 at 2:10 PM, kbuild test robot <> 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?

I think using !CONFIG_M68K is a good start. We can blacklist any other
arch that doesn't support this, and that list should be small as I doubt
any new ones will be added without this support.


greg k-h

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