Re: linux-next: build failure after merge of the akpm tree

[Timur Tabi]

On Tue, Sep 24, 2013 at 8:06 PM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi Andrew,
>
> After merging the akpm tree, linux-next builds (powerpc allmodconfig)
> fail like this:
>
> drivers/tty/ehv_bytechan.c:362:1: error: type defaults to 'int' in declaration of 'console_initcall' [-Werror=implicit-int]
>
> Caused by commit 0f01cf96c2d4 ("./Makefile: enable -Werror=implicit-int
> and -Werror=strict-prototypes by default") which has bee in linux-next
> since Aug 16.  This commit exposed that fact that
> drivers/tty/ehv_bytechan.c can be built as a module, but has a
> console_initcall (which is not available to modules).

Is this something new?  This code hasn't changed in over two years, so
I'm surprised it suddenly broke.

> This was
> originally introduced in commit dcd83aaff1c8 ("tty/powerpc: introduce the
> ePAPR embedded hypervisor byte channel driver") in v3.2.
>
> Anyone got a good solution?

How about:

#ifndef MODULE

static int __init ehv_bc_console_init(void)
{
    ...
}
console_initcall(ehv_bc_console_init);
#endif
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