Re: [PATCH] tty: tty_io: remove hung_up_tty_fops

From: Tetsuo Handa
Date: Fri Apr 28 2023 - 12:41:40 EST


On 2023/04/29 1:27, Nathan Chancellor wrote:
> I see this change has shown up in -next as commit 4c87e9e5479b ("tty:
> tty_io: remove hung_up_tty_fops"), where it causes the following warning
> for configurations without CONFIG_COMPAT (I used ARCH=arm defconfig):
>
> drivers/tty/tty_io.c:446:13: warning: 'hung_up_tty_compat_ioctl' defined but not used [-Wunused-function]
> 446 | static long hung_up_tty_compat_ioctl(struct file *file,
> | ^~~~~~~~~~~~~~~~~~~~~~~~
>
> I am not sure if you just added that patch for additional test coverage
> or for final acceptance but the following diff resolves this warning for
> me, perhaps it can be folded in for a v2?

Thank you for reporting. Yes, moving the definition will solve the warning.

I'm testing this patch using my volatile tree before getting merged to a
permanent tree.