[DTrace-devel] [PATCH 10/22] Simplify dtrace_stmt_create() attr init

[Kris Van Hees]

I adjusted the patch, and changed the commit message to be:

    Simplify dt_stmt_create() attr init
    
    Even though dt_stmt_create() initializes dtsd_descattr and dtsd_stmtattr,
    there is no point to doing so.  It calls dtrace_stmt_create(), which also
    sets these members.

and added my R-b.

On Sat, Sep 14, 2024 at 12:25:57PM -0400, Kris Van Hees via DTrace-devel wrote:
> On Thu, Aug 29, 2024 at 01:22:07AM -0400, eugene.loh at oracle.com wrote:
> > From: Eugene Loh <eugene.loh at oracle.com>
> > 
> > Even though dtrace_stmt_create() initializes dtsd_descattr and
> > dtsd_stmtattr, there is no point to doing so.  Its only caller
> > is dt_stmt_create(), which itself sets these members.
> 
> No, it is the other way around...  It should be done in dtrace_stmt_create()
> and thus it is no longer needed in dt_stmt_create().  As dtrace_stmt_create()
> is a libdtrace API function, it can be called from other code, and since it
> is the function that actual creates the statement and initializes some of its
> members, it is the logical place to retain setting the attr fields.
> 
> So, instead remove the assignments from dt_stmt_create().
> 
> > 
> > Signed-off-by: Eugene Loh <eugene.loh at oracle.com>
> > ---
> >  libdtrace/dt_program.c | 2 --
> >  1 file changed, 2 deletions(-)
> > 
> > diff --git a/libdtrace/dt_program.c b/libdtrace/dt_program.c
> > index a4b052fc..bdb434e0 100644
> > --- a/libdtrace/dt_program.c
> > +++ b/libdtrace/dt_program.c
> > @@ -240,8 +240,6 @@ dtrace_stmt_create(dtrace_hdl_t *dtp, dtrace_ecbdesc_t *edp)
> >  
> >  	dt_ecbdesc_hold(edp);
> >  	sdp->dtsd_ecbdesc = edp;
> > -	sdp->dtsd_descattr = _dtrace_defattr;
> > -	sdp->dtsd_stmtattr = _dtrace_defattr;
> >  
> >  	return sdp;
> >  }
> > -- 
> > 2.43.5
> > 
> 
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