On Thu, Feb 28, 2013 at 12:05:59AM +0000, Ben Hutchings wrote:
> On Tue, 2013-02-26 at 15:54 -0800, Greg Kroah-Hartman wrote:
> > 3.8-stable review patch.  If anyone has any objections, please let me know.
> > 
> > ------------------
> > 
> > From: Michael Chan <mc...@broadcom.com>
> > 
> > commit 85f024401bf80746ae08b7fd5809a9b16accf0b1 upstream.
> > 
> > It was mistakenly defined to be 24 instead of the next higher number 25.
> > 
> > Reported-by: Alexander Shishkin <alexander.shish...@linux.intel.com>
> > Cc: Stephen Hurd <sh...@broadcom.com>
> > Signed-off-by: Michael Chan <mc...@broadcom.com>
> > Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> > 
> > ---
> >  include/uapi/linux/serial_core.h |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > --- a/include/uapi/linux/serial_core.h
> > +++ b/include/uapi/linux/serial_core.h
> > @@ -50,7 +50,7 @@
> >  #define PORT_LPC3220       22      /* NXP LPC32xx SoC "Standard" UART */
> >  #define PORT_8250_CIR      23      /* CIR infrared port, has its own 
> > driver */
> >  #define PORT_XR17V35X      24      /* Exar XR17V35x UARTs */
> > -#define PORT_BRCM_TRUMANAGE        24
> > +#define PORT_BRCM_TRUMANAGE        25
> >  #define PORT_MAX_8250      25      /* max port ID */
> >  
> >  /*
> 
> Hang on, this is a uapi header - are these numbers actually used by
> userland or are they really internal to the 8250 drivers?

Interesting, I think they are internal to the 8250 drivers, as I don't
see how the number can be exported to userspace.  So they should
probably be moved into 8250.c somewhere.

But I could be wrong, this code is so old it's scary, hopefully no one
really is using this number in userspace.

Only one way to find out, care to make up a patch for me to apply and
queue up for 3.10?

thanks,

greg k-h
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