Re: 2.6.13-rc3-mm1

[Andrew Morton <akpm@osdl.org>]

Russell King <rmk+lkml@arm.linux.org.uk> wrote:
>
> On Fri, Jul 15, 2005 at 01:56:29AM -0700, Andrew Morton wrote:
> > Russell King <rmk+lkml@arm.linux.org.uk> wrote:
> > >
> > > On Fri, Jul 15, 2005 at 01:36:53AM -0700, Andrew Morton wrote:
> > > > +uart_handle_sysrq_char-warning-fix.patch
> > > > 
> > > >  Fix a warning
> > > 
> > > Andrew, this requires a little more fixing than your simple patch.
> > > Several drivers omit 'regs' from the receive handler when sysrq is
> > > not enabled.  Hence, this simple fix on its own will cause compile
> > > failures.
> > 
> > Me no understand.  It replaces a three-arg macro with a three-arg static
> > inline?
> 
> Some serial drivers drop 'regs' from the parent function when sysrq is
> disabled.  'regs' is only passed for sysrq support.
> 

Me still no understand.

+static inline int uart_handle_sysrq_char(struct uart_port *port,
+               unsigned int ch, struct pt_regs *regs)
+{
+       return 0;
+}
	
That function doesn't touch *regs, and all callers pass in either
a pt_regs* or NULL??
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