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[mISDN PATCH v2 05/19] Reduce stack size in dsp_cmx_send()

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From: Karsten Keil
Subject: [mISDN PATCH v2 05/19] Reduce stack size in dsp_cmx_send()
Date: Friday, May 22, 2009 - 2:04 pm

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).

Signed-off-by: Frank Seidel <frank@f-seidel.de>
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
---
 drivers/isdn/hardware/mISDN/hfcmulti.c |    2 +-
 drivers/isdn/mISDN/dsp_cmx.c           |    3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index 3a7c26c..fc76f40 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -104,7 +104,7 @@
  *	If unsure, don't give this parameter.
  *
  * dslot:
- *	NOTE: only one poll value must be given for every card.
+ *	NOTE: only one dslot value must be given for every card.
  *	Also this value must be given for non-E1 cards. If omitted, the E1
  *	card has D-channel on time slot 16, which is default.
  *	If 1..15 or 17..31, an alternate time slot is used for D-channel.
diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
index 58c43e4..ac84146 100644
--- 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;
-- 
1.6.0.2

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Messages in current thread:
[mISDN PATCH v2 00/19] mISDN patchset for next, Karsten Keil, (Fri May 22, 1:42 pm)
[mISDN PATCH v2 01/19] Add watchdog functionality to hfcmu ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 03/19] Echo canceler now gets delay inform ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 05/19] Reduce stack size in dsp_cmx_send(), Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 04/19] Fixed missing spin lock on pipeline ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 07/19] Fix DTMF locking bug issue, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 06/19] Added layer-1-hold feature, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 08/19] Hardware acceleration is now possib ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 09/19] Fix TEI and SAPI handling, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 11/19] Add allocation of recvbuf[1500] at ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 10/19] Add &quot;sapi&quot; information to debug mes ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 12/19] Fix skb leak in error cases, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 13/19] isdn: get_free_devid() failure ignored, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 14/19] Add XHFC support for embedded Speec ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 15/19] Add PCI ID for Junghanns 8S card, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 16/19] Added PCI ID for new Junghanns.net ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 17/19] Cleanup debug messages, Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 18/19] Use kernel_{send,recv}msg instead o ..., Karsten Keil, (Fri May 22, 2:04 pm)
[mISDN PATCH v2 19/19] Fix DTMF detection enable/disable, Karsten Keil, (Fri May 22, 2:04 pm)
Re: [mISDN PATCH v2 00/19] mISDN patchset for next, David Miller, (Mon May 25, 12:53 am)