ide: allocate ide_hwif_t instances dynamically
* Allocate ide_hwif_t instances dynamically and remove ide_hwifs[].
This cuts almost ~14kB from ide-probe.o (x86-32, MAX_HWIFS == 10):
text data bss dec hex filename
9140 40 14084 23264 5ae0 drivers/ide/ide-probe.o.before
9169 40 44 9253 2425 drivers/ide/ide-probe.o.after
* Remove no longer needed ide_init_port_data() call from ide_unregister().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 482f41f..6d57b7c 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -39,8 +39,6 @@
#include <asm/uaccess.h>
#include <asm/io.h>
-static ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
-
/**
* generic_id - add a generic drive id
* @drive: drive to make an ID block for
@@ -1583,15 +1581,18 @@
if (hws[i] == NULL)
continue;
+ hwif = kzalloc(sizeof(*hwif), GFP_KERNEL);
+ if (hwif == NULL)
+ continue;
+
idx = ide_find_port_slot(d);
if (idx < 0) {
printk(KERN_ERR "%s: no free slot for interface\n",
d ? d->name : "ide");
+ kfree(hwif);
continue;
}
- hwif = &ide_hwifs[idx];
-
ide_init_port_data(hwif, idx);
host->ports[i] = hwif;
@@ -1755,6 +1756,7 @@
ide_unregister(hwif);
ide_free_port_slot(hwif->index);
+ kfree(hwif);
}
kfree(host);