linux-kernel - Re: [PATCH 6/20] TTY: fix misspelling of current function in string

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: <1418030309.31745.37.camel@perches.com>
Date:	Mon, 08 Dec 2014 01:18:29 -0800
From:	Joe Perches <joe@...ches.com>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	Julia Lawall <Julia.Lawall@...6.fr>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	kernel-janitors@...r.kernel.org, linux@...musvillemoes.dk,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/20] TTY: fix misspelling of current function in string

On Mon, 2014-12-08 at 09:49 +0100, Jiri Slaby wrote:
> On 12/07/2014, 08:20 PM, Julia Lawall wrote:
> > Replace the last argument of serial_paranoia_check by the actual function
> > name.
[]
> > diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
[]
> > @@ -931,7 +931,7 @@ static void rs_send_xchar(struct tty_struct *tty, char ch)
> >  	struct serial_state *info = tty->driver_data;
> >          unsigned long flags;
> >  
> > -	if (serial_paranoia_check(info, tty->name, "rs_send_char"))
> > +	if (serial_paranoia_check(info, tty->name, "rs_send_xchar"))
> 
> I wonder, why not to use __func__ here too?

Nearly identical functions are used in amiserial and cyclades.
Disabled in amiserial, enabled in cyclades.

It might be better to add it to some file like
drivers/tty/debug_utils.h

It'd probably be better to change:

static inline int serial_paranoia_check(struct serial_state *info,
					char *name, const char *routine)
{
#ifdef SERIAL_PARANOIA_CHECK
	static const char *badmagic =
		"Warning: bad magic number for serial struct (%s) in %s\n";
	static const char *badinfo =
		"Warning: null async_struct for (%s) in %s\n";

	if (!info) {
		printk(badinfo, name, routine);
		return 1;
	}
	if (info->magic != SERIAL_MAGIC) {
		printk(badmagic, name, routine);
		return 1;
	}
#endif
	return 0;
}

to something like:

static inline int serial_paranoia_check(struct serial_state *info, char *name)
{
#ifdef SERIAL_PARANOIA_CHECK
	if (!info) {
		pr_warn("async_struct for (%s) is NULL in %pf\n",
			name, __builtin_return_address(0));
		return 1;
	}
	if (info->magic != SERIAL_MAGIC) {
		pr_warn("serial struct (%s) has bad magic number in %pf\n",
			name, __builtin_return_address(0));
		return 1;
	}
#endif
	return 0;
}

and remove all the function names from the callers.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/