zorro: Do not allocate zorro_autocon[] statically
Currently the array of Zorro devices is allocated statically, wasting
up to 4.5 KiB when running an Amiga or multi-platform kernel on a machine
with no or a handful of Zorro expansion cards. Convert it to conditional
dynamic memory allocation to fix this.
amiga_parse_bootinfo() still needs to store some information about the
detected Zorro devices, at a time even the bootmem allocator is not yet
available. This is now handled using a much smaller array (typically less
than 0.5 KiB), which is __initdata and thus freed later.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/include/linux/zorro.h b/include/linux/zorro.h
index dff4202..661cbd2 100644
--- a/include/linux/zorro.h
+++ b/include/linux/zorro.h
@@ -175,7 +175,23 @@
extern unsigned int zorro_num_autocon; /* # of autoconfig devices found */
-extern struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO];
+extern struct zorro_dev *zorro_autocon;
+
+
+ /*
+ * Minimal information about a Zorro device, passed from bootinfo
+ * Only available temporarily, i.e. until initmem has been freed!
+ */
+
+struct zorro_dev_init {
+ struct ExpansionRom rom;
+ u16 slotaddr;
+ u16 slotsize;
+ u32 boardaddr;
+ u32 boardsize;
+};
+
+extern struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata;
/*