diff options
| author | Matt Mackall <mpm@selenic.com> | 2006-10-03 01:14:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 08:04:07 -0700 |
| commit | 83d7dbc4095a0c314b191c573be5fb4fa6ce0897 (patch) | |
| tree | 0da41cd73f0dfdac778e5e415592da92db85db7a | |
| parent | ce42f19137225d01be9388a73703df40fb7af80f (diff) | |
| download | op-kernel-dev-83d7dbc4095a0c314b191c573be5fb4fa6ce0897.zip op-kernel-dev-83d7dbc4095a0c314b191c573be5fb4fa6ce0897.tar.gz | |
[PATCH] Make number of IDE interfaces configurable
Make IDE_HWIFS configurable if EMBEDDED
This lets us lop as much as 16k off an x86 build. It's a little ugly, but
it's dead simple. Note the fix for HWIFS < 2.
Sizing interfaces dynamically unfortunately turns out to be pretty
major surgery.
add/remove: 0/1 grow/shrink: 0/11 up/down: 0/-16182 (-16182)
function old new delta
ide_hwifs 16920 1692 -15228
init_irq 1113 750 -363
ideprobe_init 283 138 -145
ide_pci_setup_ports 1329 1193 -136
save_match 85 - -85
ide_register_hw_with_fixup 367 287 -80
ide_setup 1364 1308 -56
is_chipset_set 40 4 -36
create_proc_ide_interfaces 225 205 -20
init_ide_data 84 67 -17
ide_probe_for_cmd640x 1198 1183 -15
ide_unregister 1452 1451 -1
Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/ide/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/ide/setup-pci.c | 2 | ||||
| -rw-r--r-- | include/linux/ide.h | 3 |
3 files changed, 4 insertions, 3 deletions
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 0524f17..abcabb2 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -56,7 +56,7 @@ if IDE config IDE_MAX_HWIFS int "Max IDE interfaces" - depends on ALPHA || SUPERH || IA64 + depends on ALPHA || SUPERH || IA64 || EMBEDDED default 4 help This is the maximum number of IDE hardware interfaces that will diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index eb09452..157fe93 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -101,7 +101,7 @@ static ide_hwif_t *ide_match_hwif(unsigned long io_base, u8 bootable, const char return hwif; /* pick an unused entry */ } } - for (h = 0; h < 2; ++h) { + for (h = 0; h < 2 && h < MAX_HWIFS; ++h) { hwif = ide_hwifs + h; if (hwif->chipset == ide_unknown) return hwif; /* pick an unused entry */ diff --git a/include/linux/ide.h b/include/linux/ide.h index 11608cd..bdb2733 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -251,7 +251,8 @@ static inline void ide_std_init_ports(hw_regs_t *hw, #include <asm/ide.h> -#ifndef MAX_HWIFS +#if !defined(MAX_HWIFS) || defined(CONFIG_EMBEDDED) +#undef MAX_HWIFS #define MAX_HWIFS CONFIG_IDE_MAX_HWIFS #endif |
