Messages in this thread Patch in this message | | | Date | Fri, 11 Nov 2005 02:35:56 -0600 | From | Matt Mackall <> | Subject | [PATCH 14/15] misc: Configurable number of supported IDE interfaces |
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Configurable number of supported IDE interfaces
This overrides the default limit (which may be set per arch with CONFIG_IDE_MAX_HWIFS). This is the result of setting interfaces to 1:
text data bss dec hex filename 3330172 529036 190556 4049764 3dcb64 vmlinux-baseline 3329352 528928 172124 4030404 3d7fc4 vmlinux
Signed-off-by: Matt Mackall <mpm@selenic.com>
Index: 2.6.14-misc/drivers/ide/setup-pci.c =================================================================== --- 2.6.14-misc.orig/drivers/ide/setup-pci.c 2005-10-27 17:02:08.000000000 -0700 +++ 2.6.14-misc/drivers/ide/setup-pci.c 2005-11-09 11:27:23.000000000 -0800 @@ -102,7 +102,7 @@ static ide_hwif_t *ide_match_hwif(unsign 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 */ Index: 2.6.14-misc/include/linux/ide.h =================================================================== --- 2.6.14-misc.orig/include/linux/ide.h 2005-11-01 10:54:33.000000000 -0800 +++ 2.6.14-misc/include/linux/ide.h 2005-11-09 11:27:23.000000000 -0800 @@ -309,6 +309,11 @@ static inline void ide_init_hwif_ports(h } #endif /* IDE_ARCH_OBSOLETE_INIT */ +#if defined(CONFIG_IDE_HWIFS) && CONFIG_IDE_HWIFS > 0 +#undef MAX_HWIFS +#define MAX_HWIFS CONFIG_IDE_HWIFS +#endif + /* Currently only m68k, apus and m8xx need it */ #ifndef IDE_ARCH_ACK_INTR # define ide_ack_intr(hwif) (1) Index: 2.6.14-misc/init/Kconfig =================================================================== --- 2.6.14-misc.orig/init/Kconfig 2005-11-09 11:27:20.000000000 -0800 +++ 2.6.14-misc/init/Kconfig 2005-11-09 11:27:23.000000000 -0800 @@ -457,6 +457,15 @@ config CC_ALIGN_JUMPS no dummy operations need be executed. Zero means use compiler's default. +config IDE_HWIFS + depends IDE + int "Number of IDE hardware interfaces (0 for default)" if EMBEDDED + range 0 20 + default 0 + help + Select the maximum number of IDE interfaces (0 for default). + Saves up to 14k. + endmenu # General setup config TINY_SHMEM - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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