On Thu, 2008-02-21 at 01:57 -0800, David Miller wrote:
quoted text
> From: Harvey Harrison <harvey.harrison@gmail.com>
> Date: Thu, 21 Feb 2008 01:34:27 -0800
> 
> > commit 0795af5729b18218767fab27c44b1384f72dc9ad
> > Author: Joe Perches <joe@perches.com>
> > Date:   Wed Oct 3 17:59:30 2007 -0700
> > 
> >     [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
> >     
> >     This is nicer than the MAC_FMT stuff.
> >     
> >     Signed-off-by: Joe Perches <joe@perches.com>
> >     Signed-off-by: David S. Miller <davem@davemloft.net>
> > 
> > Introduced:
> > net/mac80211/debugfs_sta.c: In function ‘ieee80211_sta_debugfs_add’:
> > net/mac80211/debugfs_sta.c:211: warning: statement with no effect
> > 
> > Does print_mac modify the mac buffer in-place, or return a new buffer?
> 
> It modifies the buffer in place.
> 
> The warning is likely not from Joe's patch, but more likely
> from the __pure attribute I recently added to print_mac()'s
> declaration.  If so, we'll need to perhaps rework things.

In this case, it's being passed to a debugfs create function, could it
instead use sysfs_format_mac?

Harvey

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