| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20071024155413.GA14077@falooley.org> Date: Wed, 24 Oct 2007 08:54:13 -0700 From: Jason Lunz <lunz@...ooley.org> To: David Woodhouse <dwmw2@...radead.org> Cc: atom ota <atomota@...epyhammer.com>, Jeff Dike <jdike@...toit.com>, uml-user@...ts.sourceforge.net, linux-mtd@...ts.infradead.org, lkml <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] allow use of mtd and jffs2 on uml Push the "depends on HAS_IOMEM" in mtd down closer to the parts that actually need it. This allows enough of mtd to build to let jffs2 be used on uml. Signed-off-by: Jason Lunz <lunz@...ooley.org> --- On Wed, Oct 24, 2007 at 07:51:29AM +0100, David Woodhouse wrote: > Why build anything in chips/ or maps/ ? Did I mention it was crude? :) I followed your suggestion, and this version is much cleaner. > We should make sure mtdram, nandsim and onenandsim are all buildable > too. I wanted to keep this a pure kbuild change. Getting nand and onenand to build for uml would involve making them not use readb and friends, or getting uml to provide stub versions. arch/um/Kconfig | 4 +--- drivers/mtd/Kconfig | 12 +++++++----- drivers/mtd/chips/Kconfig | 11 ++++++++--- drivers/mtd/devices/Kconfig | 7 +++++++ 4 files changed, 23 insertions(+), 11 deletions(-) Index: linux-2.6.23.1-uml/arch/um/Kconfig =================================================================== --- linux-2.6.23.1-uml.orig/arch/um/Kconfig +++ linux-2.6.23.1-uml/arch/um/Kconfig @@ -326,9 +326,7 @@ source "drivers/md/Kconfig" -if BROKEN - source "drivers/mtd/Kconfig" -endif +source "drivers/mtd/Kconfig" #This is just to shut up some Kconfig warnings, so no prompt. config INPUT Index: linux-2.6.23.1-uml/drivers/mtd/devices/Kconfig =================================================================== --- linux-2.6.23.1-uml.orig/drivers/mtd/devices/Kconfig +++ linux-2.6.23.1-uml/drivers/mtd/devices/Kconfig @@ -78,6 +78,7 @@ config MTD_SLRAM tristate "Uncached system RAM" + depends on HAS_IOMEM help If your CPU cannot cache all of the physical memory in your machine, you can still use it for storage or swap by using this driver to @@ -85,6 +86,7 @@ config MTD_PHRAM tristate "Physical system RAM" + depends on HAS_IOMEM help This is a re-implementation of the slram driver above. @@ -151,10 +153,13 @@ Testing MTD users (eg JFFS2) on large media and media that might be removed during a write (using the floppy drive). +if HAS_IOMEM comment "Disk-On-Chip Device Drivers" +endif config MTD_DOC2000 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)" + depends on HAS_IOMEM select MTD_DOCPROBE select MTD_NAND_IDS ---help--- @@ -177,6 +182,7 @@ config MTD_DOC2001 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)" + depends on HAS_IOMEM select MTD_DOCPROBE select MTD_NAND_IDS ---help--- @@ -198,6 +204,7 @@ config MTD_DOC2001PLUS tristate "M-Systems Disk-On-Chip Millennium Plus" + depends on HAS_IOMEM select MTD_DOCPROBE select MTD_NAND_IDS ---help--- Index: linux-2.6.23.1-uml/drivers/mtd/Kconfig =================================================================== --- linux-2.6.23.1-uml.orig/drivers/mtd/Kconfig +++ linux-2.6.23.1-uml/drivers/mtd/Kconfig @@ -2,7 +2,6 @@ menuconfig MTD tristate "Memory Technology Device (MTD) support" - depends on HAS_IOMEM help Memory Technology Devices are flash, RAM and similar chips, often used for solid state file systems on embedded devices. This option @@ -278,15 +277,18 @@ This enables read only access to SmartMedia formatted NAND flash. You can mount it with FAT file system. -source "drivers/mtd/chips/Kconfig" -source "drivers/mtd/maps/Kconfig" +if HAS_IOMEM + source "drivers/mtd/chips/Kconfig" + source "drivers/mtd/maps/Kconfig" +endif source "drivers/mtd/devices/Kconfig" -source "drivers/mtd/nand/Kconfig" - -source "drivers/mtd/onenand/Kconfig" +if HAS_IOMEM + source "drivers/mtd/nand/Kconfig" + source "drivers/mtd/onenand/Kconfig" +endif source "drivers/mtd/ubi/Kconfig" Index: linux-2.6.23.1-uml/drivers/mtd/Makefile =================================================================== --- linux-2.6.23.1-uml.orig/drivers/mtd/Makefile +++ linux-2.6.23.1-uml/drivers/mtd/Makefile @@ -26,6 +26,9 @@ nftl-objs := nftlcore.o nftlmount.o inftl-objs := inftlcore.o inftlmount.o -obj-y += chips/ maps/ devices/ nand/ onenand/ +obj-y += devices/ +ifdef CONFIG_HAS_IOMEM +obj-y += chips/ maps/ nand/ onenand/ +endif obj-$(CONFIG_MTD_UBI) += ubi/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists