From 18be51872917e70e00cb21e018b6bff33162c4f7 Mon Sep 17 00:00:00 2001
From: pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Tue, 1 Jul 2008 21:31:54 +0000
Subject: [PATCH] Remove duplicate device index calculations.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4818 c046a42c-6fe2-441c-8c8c-71466251a162
---
 hw/ads7846.c  |  5 +----
 hw/ide.c      |  4 +---
 hw/lm832x.c   |  5 +----
 hw/max111x.c  |  5 +----
 hw/max7310.c  |  5 +----
 hw/nand.c     |  4 +---
 hw/tmp105.c   |  5 +----
 hw/tsc2005.c  |  5 +----
 hw/tsc210x.c  |  7 ++-----
 hw/twl92230.c |  5 +----
 hw/wm8750.c   |  4 +---
 vl.c          | 11 +++++++++--
 12 files changed, 21 insertions(+), 44 deletions(-)

diff --git a/hw/ads7846.c b/hw/ads7846.c
index 578bb54933..b39c00f515 100644
--- a/hw/ads7846.c
+++ b/hw/ads7846.c
@@ -140,8 +140,6 @@ static int ads7846_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int ads7846_iid = 0;
-
 struct ads7846_state_s *ads7846_init(qemu_irq penirq)
 {
     struct ads7846_state_s *s;
@@ -162,8 +160,7 @@ struct ads7846_state_s *ads7846_init(qemu_irq penirq)
 
     ads7846_int_update(s);
 
-    register_savevm("ads7846", ads7846_iid ++, 0,
-                    ads7846_save, ads7846_load, s);
+    register_savevm("ads7846", -1, 0, ads7846_save, ads7846_load, s);
 
     return s;
 }
diff --git a/hw/ide.c b/hw/ide.c
index dc41982920..91244be91c 100644
--- a/hw/ide.c
+++ b/hw/ide.c
@@ -3596,8 +3596,6 @@ static int md_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int md_iid = 0;
-
 static const uint8_t dscm1xxxx_cis[0x14a] = {
     [0x000] = CISTPL_DEVICE,	/* 5V Device Information */
     [0x002] = 0x03,		/* Tuple length = 4 bytes */
@@ -3824,7 +3822,7 @@ struct pcmcia_card_s *dscm1xxxx_init(BlockDriverState *bdrv)
     md->ide->mdata_size = METADATA_SIZE;
     md->ide->mdata_storage = (uint8_t *) qemu_mallocz(METADATA_SIZE);
 
-    register_savevm("microdrive", md_iid ++, 0, md_save, md_load, md);
+    register_savevm("microdrive", -1, 0, md_save, md_load, md);
 
     return &md->card;
 }
diff --git a/hw/lm832x.c b/hw/lm832x.c
index efb80f7e7f..1e4564e3b8 100644
--- a/hw/lm832x.c
+++ b/hw/lm832x.c
@@ -490,8 +490,6 @@ static int lm_kbd_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int lm_kbd_iid = 0;
-
 struct i2c_slave *lm8323_init(i2c_bus *bus, qemu_irq nirq)
 {
     struct lm_kbd_s *s;
@@ -510,8 +508,7 @@ struct i2c_slave *lm8323_init(i2c_bus *bus, qemu_irq nirq)
     lm_kbd_reset(s);
 
     qemu_register_reset((void *) lm_kbd_reset, s);
-    register_savevm("LM8323", lm_kbd_iid ++, 0,
-                    lm_kbd_save, lm_kbd_load, s);
+    register_savevm("LM8323", -1, 0, lm_kbd_save, lm_kbd_load, s);
 
     return &s->i2c;
 }
diff --git a/hw/max111x.c b/hw/max111x.c
index cc3ded1dfe..15392a21fc 100644
--- a/hw/max111x.c
+++ b/hw/max111x.c
@@ -121,8 +121,6 @@ static int max111x_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int max111x_iid = 0;
-
 static struct max111x_s *max111x_init(qemu_irq cb)
 {
     struct max111x_s *s;
@@ -143,8 +141,7 @@ static struct max111x_s *max111x_init(qemu_irq cb)
     s->input[7] = 0x80;
     s->com = 0;
 
-    register_savevm("max111x", max111x_iid ++, 0,
-                    max111x_save, max111x_load, s);
+    register_savevm("max111x", -1, 0, max111x_save, max111x_load, s);
 
     return s;
 }
diff --git a/hw/max7310.c b/hw/max7310.c
index 397950a084..2816611a80 100644
--- a/hw/max7310.c
+++ b/hw/max7310.c
@@ -177,8 +177,6 @@ static int max7310_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int max7310_iid = 0;
-
 static void max7310_gpio_set(void *opaque, int line, int level)
 {
     struct max7310_s *s = (struct max7310_s *) opaque;
@@ -205,8 +203,7 @@ struct i2c_slave *max7310_init(i2c_bus *bus)
 
     max7310_reset(&s->i2c);
 
-    register_savevm("max7310", max7310_iid ++, 0,
-                    max7310_save, max7310_load, s);
+    register_savevm("max7310", -1, 0, max7310_save, max7310_load, s);
 
     return &s->i2c;
 }
diff --git a/hw/nand.c b/hw/nand.c
index aa0c200f2a..294a83f85f 100644
--- a/hw/nand.c
+++ b/hw/nand.c
@@ -319,8 +319,6 @@ static int nand_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int nand_iid = 0;
-
 /*
  * Chip inputs are CLE, ALE, CE, WP, GND and eight I/O pins.  Chip
  * outputs are R/B and eight I/O pins.
@@ -495,7 +493,7 @@ struct nand_flash_s *nand_init(int manf_id, int chip_id)
         s->storage = (uint8_t *) memset(qemu_malloc(s->pages * pagesize),
                         0xff, s->pages * pagesize);
 
-    register_savevm("nand", nand_iid ++, 0, nand_save, nand_load, s);
+    register_savevm("nand", -1, 0, nand_save, nand_load, s);
 
     return s;
 }
diff --git a/hw/tmp105.c b/hw/tmp105.c
index da26e46715..a4a0103d7b 100644
--- a/hw/tmp105.c
+++ b/hw/tmp105.c
@@ -228,8 +228,6 @@ void tmp105_reset(i2c_slave *i2c)
     tmp105_interrupt_update(s);
 }
 
-static int tmp105_iid = 0;
-
 struct i2c_slave *tmp105_init(i2c_bus *bus, qemu_irq alarm)
 {
     struct tmp105_s *s = (struct tmp105_s *)
@@ -242,8 +240,7 @@ struct i2c_slave *tmp105_init(i2c_bus *bus, qemu_irq alarm)
 
     tmp105_reset(&s->i2c);
 
-    register_savevm("TMP105", tmp105_iid ++, 0,
-                    tmp105_save, tmp105_load, s);
+    register_savevm("TMP105", -1, 0, tmp105_save, tmp105_load, s);
 
     return &s->i2c;
 }
diff --git a/hw/tsc2005.c b/hw/tsc2005.c
index 7708a36d55..f7a35b2d9d 100644
--- a/hw/tsc2005.c
+++ b/hw/tsc2005.c
@@ -520,8 +520,6 @@ static int tsc2005_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int tsc2005_iid = 0;
-
 void *tsc2005_init(qemu_irq pintdav)
 {
     struct tsc2005_state_s *s;
@@ -551,8 +549,7 @@ void *tsc2005_init(qemu_irq pintdav)
                     "QEMU TSC2005-driven Touchscreen");
 
     qemu_register_reset((void *) tsc2005_reset, s);
-    register_savevm("tsc2005", tsc2005_iid ++, 0,
-                    tsc2005_save, tsc2005_load, s);
+    register_savevm("tsc2005", -1, 0, tsc2005_save, tsc2005_load, s);
 
     return s;
 }
diff --git a/hw/tsc210x.c b/hw/tsc210x.c
index f15aebaf16..97c21ef026 100644
--- a/hw/tsc210x.c
+++ b/hw/tsc210x.c
@@ -1107,8 +1107,6 @@ static int tsc210x_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int tsc2102_iid = 0;
-
 struct uwire_slave_s *tsc2102_init(qemu_irq pint, AudioState *audio)
 {
     struct tsc210x_state_s *s;
@@ -1154,7 +1152,7 @@ struct uwire_slave_s *tsc2102_init(qemu_irq pint, AudioState *audio)
         AUD_register_card(s->audio, s->name, &s->card);
 
     qemu_register_reset((void *) tsc210x_reset, s);
-    register_savevm(s->name, tsc2102_iid ++, 0,
+    register_savevm(s->name, -1, 0,
                     tsc210x_save, tsc210x_load, s);
 
     return &s->chip;
@@ -1208,8 +1206,7 @@ struct uwire_slave_s *tsc2301_init(qemu_irq penirq, qemu_irq kbirq,
         AUD_register_card(s->audio, s->name, &s->card);
 
     qemu_register_reset((void *) tsc210x_reset, s);
-    register_savevm(s->name, tsc2102_iid ++, 0,
-                    tsc210x_save, tsc210x_load, s);
+    register_savevm(s->name, -1, 0, tsc210x_save, tsc210x_load, s);
 
     return &s->chip;
 }
diff --git a/hw/twl92230.c b/hw/twl92230.c
index 8d0ce5da6c..8fad96902d 100644
--- a/hw/twl92230.c
+++ b/hw/twl92230.c
@@ -876,8 +876,6 @@ static int menelaus_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int menelaus_iid = 0;
-
 i2c_slave *twl92230_init(i2c_bus *bus, qemu_irq irq)
 {
     struct menelaus_s *s = (struct menelaus_s *)
@@ -894,8 +892,7 @@ i2c_slave *twl92230_init(i2c_bus *bus, qemu_irq irq)
 
     menelaus_reset(&s->i2c);
 
-    register_savevm("menelaus", menelaus_iid ++,
-                    0, menelaus_save, menelaus_load, s);
+    register_savevm("menelaus", -1, 0, menelaus_save, menelaus_load, s);
 
     return &s->i2c;
 }
diff --git a/hw/wm8750.c b/hw/wm8750.c
index ee6790bb99..b175167ad6 100644
--- a/hw/wm8750.c
+++ b/hw/wm8750.c
@@ -646,8 +646,6 @@ static int wm8750_load(QEMUFile *f, void *opaque, int version_id)
     return 0;
 }
 
-static int wm8750_iid = 0;
-
 i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio)
 {
     struct wm8750_s *s = (struct wm8750_s *)
@@ -659,7 +657,7 @@ i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio)
     AUD_register_card(audio, CODEC, &s->card);
     wm8750_reset(&s->i2c);
 
-    register_savevm(CODEC, wm8750_iid ++, 0, wm8750_save, wm8750_load, s);
+    register_savevm(CODEC, -1, 0, wm8750_save, wm8750_load, s);
 
     return &s->i2c;
 }
diff --git a/vl.c b/vl.c
index 84eab32c5a..cde008e9ab 100644
--- a/vl.c
+++ b/vl.c
@@ -6060,6 +6060,8 @@ typedef struct SaveStateEntry {
 
 static SaveStateEntry *first_se;
 
+/* TODO: Individual devices generally have very little idea about the rest
+   of the system, so instance_id should be removed/replaced.  */
 int register_savevm(const char *idstr,
                     int instance_id,
                     int version_id,
@@ -6073,7 +6075,7 @@ int register_savevm(const char *idstr,
     if (!se)
         return -1;
     pstrcpy(se->idstr, sizeof(se->idstr), idstr);
-    se->instance_id = instance_id;
+    se->instance_id = (instance_id == -1) ? 0 : instance_id;
     se->version_id = version_id;
     se->save_state = save_state;
     se->load_state = load_state;
@@ -6082,8 +6084,13 @@ int register_savevm(const char *idstr,
 
     /* add at the end of list */
     pse = &first_se;
-    while (*pse != NULL)
+    while (*pse != NULL) {
+        if (instance_id == -1
+                && strcmp(se->idstr, (*pse)->idstr) == 0
+                && se->instance_id <= (*pse)->instance_id)
+            se->instance_id = (*pse)->instance_id + 1;
         pse = &(*pse)->next;
+    }
     *pse = se;
     return 0;
 }