From c293738e6d8dfb9c941759855b5161fde449644d Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 29 Jun 2013 10:40:20 +0200 Subject: 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 --- include/linux/zorro.h | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'include/linux/zorro.h') diff --git a/include/linux/zorro.h b/include/linux/zorro.h index dff42025649b..661cbd2a86ee 100644 --- a/include/linux/zorro.h +++ b/include/linux/zorro.h @@ -175,7 +175,23 @@ static inline struct zorro_driver *zorro_dev_driver(const struct zorro_dev *z) 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; /* -- cgit v1.2.3-59-g8ed1b