linux-kernel - Re: [PATCH 01/13] kernel/irq/proc: use seq_put_decimal_ull

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Message-ID: <55ac03be.235.1936af19487.Coremail.00107082@163.com>
Date: Wed, 27 Nov 2024 08:07:17 +0800 (CST)
From: "David Wang" <00107082@....com>
To: "Thomas Gleixner" <tglx@...utronix.de>
Cc: "Geert Uytterhoeven" <geert@...ux-m68k.org>, linux-kernel@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH 01/13] kernel/irq/proc: use seq_put_decimal_ull_width()
 for decimal values


At 2024-11-27 01:40:29, "Thomas Gleixner" <tglx@...utronix.de> wrote:
>On Wed, Nov 20 2024 at 12:24, David Wang wrote:
>> At 2024-11-20 09:20:59, "Thomas Gleixner" <tglx@...utronix.de> wrote:
>>>diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
>>>index f36c33bd2da4..9b715ce8cf2e 100644
>>>--- a/kernel/irq/proc.c
>>>+++ b/kernel/irq/proc.c
>>>@@ -501,6 +501,7 @@ int show_interrupts(struct seq_file *p, void *v)
>>> 
>>> 		seq_put_decimal_ull_width(p, " ", cnt, 10);
>>> 	}
>>>+	seq_putc(p, ' ');
>>> 
>>> 	raw_spin_lock_irqsave(&desc->lock, flags);
>>> 	if (desc->irq_data.chip) {
>>
>> On second thought,   considering other paths have already had a leading space, 
>> maybe it is more clean to just add a leading space before irq_print_chip:
>>
>>         raw_spin_lock_irqsave(&desc->lock, flags);
>>         if (desc->irq_data.chip) {
>> -               if (desc->irq_data.chip->irq_print_chip)
>> +               if (desc->irq_data.chip->irq_print_chip) {
>> +                       seq_putc(p, ' ');
>>                         desc->irq_data.chip->irq_print_chip(&desc->irq_data, p);
>> -               else if (desc->irq_data.chip->name)
>> +               } else if (desc->irq_data.chip->name)
>>                         seq_printf(p, " %8s", desc->irq_data.chip->name);
>>                 else
>>                         seq_printf(p, " %8s", "-");
>
>I rather keep the seq_putc() and remove the trailing space from the
>other prints.

Agree,  code would align better this way and separating spaces will be consistent.

David