linux-kernel - Re: [PATCH] alpha: Fix build around srm_sysrq_reboot

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Date:   Thu, 11 Jun 2020 06:23:22 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-alpha@...r.kernel.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>,
        Emil Velikov <emil.l.velikov@...il.com>
Subject: Re: [PATCH] alpha: Fix build around srm_sysrq_reboot_op

On Thu, Jun 11, 2020 at 11:11:39AM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@...e.de>
> 
> The patch introducing the struct was probably never compile tested,
> because it sets a handler with a wrong function signature. Wrap the
> handler into a functions with the correct signature to fix the build.
> 
> Fixes: 0f1c9688a194 ("tty/sysrq: alpha: export and use __sysrq_get_key_op()")
> Cc: Emil Velikov <emil.l.velikov@...il.com>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Signed-off-by: Joerg Roedel <jroedel@...e.de>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Tested-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  arch/alpha/kernel/setup.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
> index f5c42a8fcf9c..53520f8cb904 100644
> --- a/arch/alpha/kernel/setup.c
> +++ b/arch/alpha/kernel/setup.c
> @@ -430,8 +430,13 @@ register_cpus(void)
>  arch_initcall(register_cpus);
>  
>  #ifdef CONFIG_MAGIC_SYSRQ
> +static void sysrq_reboot_handler(int unused)
> +{
> +	machine_halt();
> +}
> +
>  static const struct sysrq_key_op srm_sysrq_reboot_op = {
> -	.handler	= machine_halt,
> +	.handler	= sysrq_reboot_handler,
>  	.help_msg       = "reboot(b)",
>  	.action_msg     = "Resetting",
>  	.enable_mask    = SYSRQ_ENABLE_BOOT,
> -- 
> 2.26.2
>