Re: [PATCH v2 2/9] hw/audio/fmopl: Move ENV_CURVE to .heap to save 32KiB of .bss

["Daniel P. Berrangé" <berrange@redhat.com>]

On Thu, Mar 05, 2020 at 02:49:37PM +0100, Philippe Mathieu-Daudé wrote:
> On 3/5/20 2:44 PM, Stefano Garzarella wrote:
> > On Thu, Mar 05, 2020 at 01:45:18PM +0100, Philippe Mathieu-Daudé wrote:
> > > This buffer is only used by the adlib audio device. Move it to
> > > the .heap to release 32KiB of .bss (size reported on x86_64 host).
> > > 
> > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> > > ---
> > >   hw/audio/fmopl.c | 4 +++-
> > >   1 file changed, 3 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/hw/audio/fmopl.c b/hw/audio/fmopl.c
> > > index 173a7521f2..356d4dfbca 100644
> > > --- a/hw/audio/fmopl.c
> > > +++ b/hw/audio/fmopl.c
> > > @@ -186,7 +186,7 @@ static int32_t *VIB_TABLE;
> > >   /* envelope output curve table */
> > >   /* attack + decay + OFF */
> > > -static int32_t ENV_CURVE[2*EG_ENT+1];
> > > +static int32_t *ENV_CURVE;
> > >   /* multiple table */
> > >   #define ML 2
> > > @@ -1090,6 +1090,7 @@ FM_OPL *OPLCreate(int clock, int rate)
> > >   	OPL->clock = clock;
> > >   	OPL->rate  = rate;
> > >   	OPL->max_ch = max_ch;
> > > +    ENV_CURVE = g_new(int32_t, 2 * EG_ENT + 1);
> > >   	/* init grobal tables */
> > >   	OPL_initialize(OPL);
> > >   	/* reset chip */
> > > @@ -1127,6 +1128,7 @@ void OPLDestroy(FM_OPL *OPL)
> > >   #endif
> > >   	OPL_UnLockTable();
> > >   	free(OPL);
> > > +    g_free(ENV_CURVE);
> > 
> > Just for curiosity, here the entire fmopl.c is indented with tabs.
> > 
> > In this case, is it better to continue with the tabs or use spaces
> > for new changes?
> 
> checkpatch.pl doesn't allow us to use spaces.

ITYM  'tabs' here.

IMHO this is a case where the cure is worse than the disease.
In priority order I think we generally rank:

 * Exclusive use of space indent (best)
 * Exclusive use of tab indent (bad)
 * Mixture of space & tab indent (terrible)

IOW, this is a case where I would suggest either:

 - Have a cleanup commit first that eliminates all tabs

or

 - Continue to use tabs consistently & ignore checkpatch

Regards,
Daniel
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