linux-kernel - [PATCH 01/16] [ISDN] HiSax: modularize card setup

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Message-Id: <20071029193856.AC45F1F816B@havoc.gtf.org>
Date:	Mon, 29 Oct 2007 15:38:56 -0400 (EDT)
From:	Jeff Garzik <jeff@...zik.org>
To:	linux-kernel@...r.kernel.org, isdn4linux@...tserv.isdn4linux.de
Cc:	kkeil@...e.de, akpm@...ux-foundation.org
Subject: [PATCH 01/16] [ISDN] HiSax: modularize card setup

Now that the previous no-behavior-change code movement patches have
occurred, we can easily replace the big per-card "call the setup
function for <this card>" switch statement with a function pointer.

Signed-off-by: Jeff Garzik <jeff@...zik.org>
---
 drivers/isdn/hisax/config.c    |   14 +++++++++-----
 drivers/isdn/hisax/hisax_cfg.h |    2 ++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index 97097ef..4c536b7 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -1166,7 +1166,9 @@ outf_cs:
 	return 0;
 }
 
-static int checkcard(int cardnr, char *id, int *busy_flag, struct module *lockowner)
+static int checkcard(int cardnr, char *id, int *busy_flag,
+		     struct module *lockowner,
+		     hisax_setup_func_t card_setup)
 {
 	int ret;
 	struct IsdnCard *card = cards + cardnr;
@@ -1184,7 +1186,7 @@ static int checkcard(int cardnr, char *id, int *busy_flag, struct module *lockow
 	       (card->protocol == ISDN_PTYPE_NI1) ? "NI1" :
 	       "NONE", cs->iif.id, cs->myid);
 
-	ret = hisax_cs_setup_card(card);
+	ret = card_setup(card);
 	if (!ret) {
 		ll_unload(cs);
 		goto outf_cs;
@@ -1238,7 +1240,8 @@ static int HiSax_inithardware(int *busy_flag)
 			else
 				sprintf(ids, "%s%d", id, i);
 		}
-		if (checkcard(i, ids, busy_flag, THIS_MODULE)) {
+		if (checkcard(i, ids, busy_flag, THIS_MODULE,
+			      hisax_cs_setup_card)) {
 			foundcards++;
 			i++;
 		} else {
@@ -1546,7 +1549,8 @@ int hisax_init_pcmcia(void *pcm_iob, int *busy_flag, struct IsdnCard *card)
 		sprintf(ids, "HiSax%d", nrcards);
 	else
 		sprintf(ids, "HiSax");
-	if (!checkcard(nrcards, ids, busy_flag, THIS_MODULE))
+	if (!checkcard(nrcards, ids, busy_flag, THIS_MODULE,
+		       hisax_cs_setup_card))
 		goto error;
 
 	ret = nrcards;
@@ -1592,7 +1596,7 @@ int hisax_register(struct hisax_d_if *hisax_d_if, struct hisax_b_if *b_if[],
 	cards[i].protocol = protocol;
 	sprintf(id, "%s%d", name, i);
 	nrcards++;
-	retval = checkcard(i, id, NULL, hisax_d_if->owner);
+	retval = checkcard(i, id, NULL, hisax_d_if->owner, hisax_cs_setup_card);
 	if (retval == 0) { // yuck
 		cards[i].typ = 0;
 		nrcards--;
diff --git a/drivers/isdn/hisax/hisax_cfg.h b/drivers/isdn/hisax/hisax_cfg.h
index ca3fe62..17a2fea 100644
--- a/drivers/isdn/hisax/hisax_cfg.h
+++ b/drivers/isdn/hisax/hisax_cfg.h
@@ -60,5 +60,7 @@ struct IsdnCard {
 	IsdnCardState_t	*cs;
 };
 
+typedef int (*hisax_setup_func_t)(struct IsdnCard *card);
+
 extern void	HiSax_closecard(int);
 extern int	hisax_init_pcmcia(void *, int *, IsdnCard_t *);
-- 
1.5.2.4

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