linux-kernel - Re: [PATCH v14 3/9] clocksource/drivers/arm_arch

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Message-ID: <20161020153244.GB27598@leverpostej>
Date:   Thu, 20 Oct 2016 16:32:45 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     fu.wei@...aro.org
Cc:     rjw@...ysocki.net, lenb@...nel.org, daniel.lezcano@...aro.org,
        tglx@...utronix.de, marc.zyngier@....com,
        lorenzo.pieralisi@....com, sudeep.holla@....com,
        hanjun.guo@...aro.org, linux-arm-kernel@...ts.infradead.org,
        linaro-acpi@...ts.linaro.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, rruigrok@...eaurora.org,
        harba@...eaurora.org, cov@...eaurora.org, timur@...eaurora.org,
        graeme.gregory@...aro.org, al.stone@...aro.org, jcm@...hat.com,
        wei@...hat.com, arnd@...db.de, catalin.marinas@....com,
        will.deacon@....com, Suravee.Suthikulpanit@....com,
        leo.duran@....com, wim@...ana.be, linux@...ck-us.net,
        linux-watchdog@...r.kernel.org, tn@...ihalf.com,
        christoffer.dall@...aro.org, julien.grall@....com
Subject: Re: [PATCH v14 3/9] clocksource/drivers/arm_arch_timer: Improve
 printk relevant code

On Thu, Sep 29, 2016 at 02:17:11AM +0800, fu.wei@...aro.org wrote:
>  static void arch_timer_banner(unsigned type)
>  {
> -	pr_info("Architected %s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",
> -		     type & ARCH_CP15_TIMER ? "cp15" : "",
> -		     type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " : "",
> -		     type & ARCH_MEM_TIMER ? "mmio" : "",
> -		     (unsigned long)arch_timer_rate / 1000000,
> -		     (unsigned long)(arch_timer_rate / 10000) % 100,
> -		     type & ARCH_CP15_TIMER ?
> -		     (arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :
> -			"",
> -		     type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",
> -		     type & ARCH_MEM_TIMER ?
> -			arch_timer_mem_use_virtual ? "virt" : "phys" :
> -			"");
> +	pr_info("%s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",
> +		type & ARCH_CP15_TIMER ? "cp15" : "",
> +		type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " : "",
> +		type & ARCH_MEM_TIMER ? "mmio" : "",
> +		(unsigned long)arch_timer_rate / 1000000,
> +		(unsigned long)(arch_timer_rate / 10000) % 100,
> +		type & ARCH_CP15_TIMER ?
> +		(arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :
> +		"",
Please restore the additional indent on this line...

> +		type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",
> +		type & ARCH_MEM_TIMER ?
> +		arch_timer_mem_use_virtual ? "virt" : "phys" :
> +		"");

... and these two.

No matter what checkpatch says, I prefer the code that way so as to keep
the ternary clear.

[...]

> @@ -768,7 +769,7 @@ static int __init arch_timer_init(void)
>  		return ret;
>  
>  	arch_timer_kvm_info.virtual_irq = arch_timer_ppi[VIRT_PPI];
> -	
> +

Please mention the whitespace fixup in the commit message. It's
surprising otherwise.

With all that:

Acked-by: Mark Rutland <mark.rutland@....com>

Thanks,
Mark.