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    SubjectRe: [PATCH] isdn: reduce stack size of mISDN_dsp
    On Sun, Mar 01, 2009 at 05:32:50PM +0100, Frank Seidel wrote:
    > From: Frank Seidel <frank@f-seidel.de>
    >
    > Reduce stack size memory footprint of mISDN_dsp.
    > (From 1468 bytes for dsp_cmx_send on i386 down
    > to 44).
    >

    I do not think we can use a static buffer here,
    we may have multiple instances.

    > Signed-off-by: Frank Seidel <frank@f-seidel.de>
    > ---
    > drivers/isdn/mISDN/dsp_cmx.c | 3 ++-
    > 1 file changed, 2 insertions(+), 1 deletion(-)
    >
    > --- a/drivers/isdn/mISDN/dsp_cmx.c
    > +++ b/drivers/isdn/mISDN/dsp_cmx.c
    > @@ -1592,7 +1592,8 @@ dsp_cmx_send(void *arg)
    > struct dsp_conf_member *member;
    > struct dsp *dsp;
    > int mustmix, members;
    > - s32 mixbuffer[MAX_POLL+100], *c;
    > + static s32 mixbuffer[MAX_POLL+100];
    > + s32 *c;
    > u8 *p, *q;
    > int r, rr;
    > int jittercheck = 0, delay, i;

    --
    Karsten Keil
    SuSE Labs
    ISDN and VOIP development
    SUSE LINUX Products GmbH, Maxfeldstr.5 90409 Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg)


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