netdev - Re: [RFC PATCH] vsprintf: Add %p*D extension for 80211 SSIDs

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Date:	Mon, 07 Jan 2013 08:47:08 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Joe Perches <joe@...ches.com>
Cc:	"John W. Linville" <linville@...driver.com>,
	Chen Gang <gang.chen@...anux.com>, stas.yakovlev@...il.com,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [RFC PATCH] vsprintf: Add %p*D extension for 80211 SSIDs

On Sun, 2013-01-06 at 20:49 -0800, Joe Perches wrote:
> On Sun, 2013-01-06 at 19:19 -0800, Joe Perches wrote:
> > Maybe these days this should be another vsprintf %p extension
> > like %pM when the DECLARE_MAC_BUF/print_mac uses were converted.
> > 
> > (or maybe extend %ph for ssids with %*phs, length, array)
> 
> Maybe like this:

> + * - 'D' For a 80211 SSID, it prints the SSID escaping any non-printable
> +         characters with a leading \ and octal or [0nrt\]

Honestly, I'm not sure it's worth it. print_ssid() is used in two or
three legacy drivers only, not in any modern driver, and is unlikely to
be used in the more modern drivers due to tracing etc.

johannes

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