linux-kernel - Re: [PATCH 01/11] tty/sysrq: alpha: export and use __sysrq_get_key

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Date:   Wed, 10 Jun 2020 13:51:54 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Emil Velikov <emil.l.velikov@...il.com>
Cc:     dri-devel@...ts.freedesktop.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, linux-kernel@...r.kernel.org,
        Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>, linux-alpha@...r.kernel.org
Subject: Re: [PATCH 01/11] tty/sysrq: alpha: export and use
 __sysrq_get_key_op()

On Wed, May 13, 2020 at 10:43:41PM +0100, Emil Velikov wrote:
> Export a pointer to the sysrq_get_key_op(). This way we can cleanly
> unregister it, instead of the current solutions of modifuing it inplace.
> 
> Since __sysrq_get_key_op() is no longer used externally, let's make it
> a static function.
> 
> This patch will allow us to limit access to each and every sysrq op and
> constify the sysrq handling.
> 
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Jiri Slaby <jslaby@...e.com>
> Cc: linux-kernel@...r.kernel.org
> Cc: Richard Henderson <rth@...ddle.net>
> Cc: Ivan Kokshaysky <ink@...assic.park.msu.ru>
> Cc: Matt Turner <mattst88@...il.com>
> Cc: linux-alpha@...r.kernel.org
> Signed-off-by: Emil Velikov <emil.l.velikov@...il.com>
> ---
> Please keep me in the CC list, as I'm not subscribed to the list.
> 
> IMHO it would be better if this gets merged this via the tty tree.

Still observed:

Building alpha:defconfig ... failed
--------------
Error log:
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
arch/alpha/kernel/setup.c:434:13: error: initialization of 'void (*)(int)' from incompatible pointer type 'void (*)(void)' [-Werror=incompatible-pointer-types]
  434 |  .handler = machine_halt,
      |             ^~~~~~~~~~~~
arch/alpha/kernel/setup.c:434:13: note: (near initialization for 'srm_sysrq_reboot_op.handler')

I did not see a reply to the initial report. Is this being addressed ?

Guenter