linux-kernel - Re: [PATCH 11/13] irq debug: do not use print

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20171212025052.GD7798@jagdpanzerIV>
Date:   Tue, 12 Dec 2017 11:50:52 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     David Laight <David.Laight@...LAB.COM>
Cc:     'Sergey Senozhatsky' <sergey.senozhatsky.work@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Salter <msalter@...hat.com>,
        Tony Luck <tony.luck@...el.com>,
        David Howells <dhowells@...hat.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Guan Xuetao <gxt@...c.pku.edu.cn>,
        Borislav Petkov <bp@...en8.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Vineet Gupta <vgupta@...opsys.com>,
        Fengguang Wu <fengguang.wu@...el.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Petr Mladek <pmladek@...e.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-c6x-dev@...ux-c6x.org" <linux-c6x-dev@...ux-c6x.org>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        "linux-am33-list@...hat.com" <linux-am33-list@...hat.com>,
        "linux-sh@...r.kernel.org" <linux-sh@...r.kernel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [PATCH 11/13] irq debug: do not use print_symbol()

On (12/11/17 12:55), David Laight wrote:
> >  kernel/irq/debug.h | 8 +++-----
> >  1 file changed, 3 insertions(+), 5 deletions(-)
> > 
> > diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h
> > index 17f05ef8f575..5766e15c1160 100644
> > --- a/kernel/irq/debug.h
> > +++ b/kernel/irq/debug.h
> ...
> > @@ -15,13 +13,13 @@ static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
> >  	printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
> >  		irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
> >  	printk("->handle_irq():  %p, ", desc->handle_irq);
> > -	print_symbol("%s\n", (unsigned long)desc->handle_irq);
> > +	pr_cont("%pS\n", desc->handle_irq);
> 
> Looks like you can (and should) use a single printk() instead of pr_cont.

thanks, good point. those pr_cont()-s basically just replicate
the old behaviour; but it'll be better to get tid of them. will
follow up shortly.

	-ss