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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2013-06-29 10:40:20 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2013-11-26 11:09:03 +0100 |
| commit | c293738e6d8dfb9c941759855b5161fde449644d (patch) | |
| tree | 3c2d4b2041af3e2fe5a8a4702cdfe49fca3e1f7f /arch/m68k | |
| parent | 1ea636eb68322198e08aebdede141244d98e8299 (diff) | |
| download | lwn-c293738e6d8dfb9c941759855b5161fde449644d.tar.gz lwn-c293738e6d8dfb9c941759855b5161fde449644d.zip | |
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>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/amiga/config.c | 6 | ||||
| -rw-r--r-- | arch/m68k/amiga/platform.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 93ab423758da..d956ddbfebe1 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -174,12 +174,12 @@ int __init amiga_parse_bootinfo(const struct bi_record *record) #ifdef CONFIG_ZORRO if (zorro_num_autocon < ZORRO_NUM_AUTO) { const struct ConfigDev *cd = (struct ConfigDev *)data; - struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; + struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++]; dev->rom = cd->cd_Rom; dev->slotaddr = cd->cd_SlotAddr; dev->slotsize = cd->cd_SlotSize; - dev->resource.start = (unsigned long)cd->cd_BoardAddr; - dev->resource.end = dev->resource.start + cd->cd_BoardSize - 1; + dev->boardaddr = (u32)cd->cd_BoardAddr; + dev->boardsize = cd->cd_BoardSize; } else printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); #endif /* CONFIG_ZORRO */ diff --git a/arch/m68k/amiga/platform.c b/arch/m68k/amiga/platform.c index dacd9f911f71..7847b2b1b5b6 100644 --- a/arch/m68k/amiga/platform.c +++ b/arch/m68k/amiga/platform.c @@ -67,8 +67,8 @@ static int __init z_dev_present(zorro_id id) unsigned int i; for (i = 0; i < zorro_num_autocon; i++) - if (zorro_autocon[i].rom.er_Manufacturer == ZORRO_MANUF(id) && - zorro_autocon[i].rom.er_Product == ZORRO_PROD(id)) + if (zorro_autocon_init[i].rom.er_Manufacturer == ZORRO_MANUF(id) && + zorro_autocon_init[i].rom.er_Product == ZORRO_PROD(id)) return 1; return 0; |