Re: [RFC][PATCH] tty: serial: qcom_geni_serial: Drop __init from qcom_geni_console_setup

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On Tue, Aug 11, 2020 at 10:00 AM Saravana Kannan <saravanak@xxxxxxxxxx> wrote:
>
> On Mon, Aug 10, 2020 at 7:50 PM John Stultz <john.stultz@xxxxxxxxxx> wrote:
> >
> > When booting with heavily modularized config, the serial console
> > may not be able to load until after init when modules that
> > satisfy needed dependencies have time to load.
> >
> > Unfortunately, as qcom_geni_console_setup is marked as __init,
> > the function may have been freed before we get to run it,
> > causing boot time crashes such as:
>
> Btw, I thought non-__init functions calling __init functions would be
> caught by the build system. Is that not correct? If it's correct, do
> we know how this gets past that check?

I think it's because it's indirectly called through a function pointer.

thanks
-john



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