From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 1/3] fs/fat: Fix FAT detection to support non-DOS partition tables
Date: Thu, 05 Jan 2012 17:14:23 +0100 [thread overview]
Message-ID: <20120105161423.098A5B6F26@gemini.denx.de> (raw)
In-Reply-To: <1324487292-7299-2-git-send-email-Kyle.D.Moffett@boeing.com>
Dear Kyle Moffett,
In message <1324487292-7299-2-git-send-email-Kyle.D.Moffett@boeing.com> you wrote:
> The FAT filesystem code currently ends up requiring that the partition
> table be a DOS MBR, as it checks for the DOS 0x55 0xAA signature on the
> partition table (which may be Mac, EFI, ISO9660, etc) before actually
> computing the partition offset.
>
> This fixes support for accessing a FAT filesystem in an ISO9660 boot
> volume (El-Torito format) by reordering the filesystem checks and
> reading the 0x55 0xAA "DOS boot signature" and FAT/FAT32 magic number
> from the first sector of the partition instead of from sector 0.
>
> Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
>
> --
>
> v2:
> I have removed the unnecessary static initializers. All the variables
> are memset to 0 as part of the BSS, and cur_dev is only initialized
> after the rest of the variables have been set correctly.
>
> ---
> fs/fat/fat.c | 117 +++++++++++++++++++++++++++-------------------------------
> 1 files changed, 54 insertions(+), 63 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"Plan to throw one away. You will anyway."
- Fred Brooks, "The Mythical Man Month"
next prev parent reply other threads:[~2012-01-05 16:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-21 17:08 [U-Boot] [PATCH v2 0/3] Enable access to FAT filesystem in an ISO9660 El-Torito volume Kyle Moffett
2011-12-21 17:08 ` [U-Boot] [PATCH v2 1/3] fs/fat: Fix FAT detection to support non-DOS partition tables Kyle Moffett
2012-01-05 16:14 ` Wolfgang Denk [this message]
2012-01-05 19:12 ` Wolfgang Denk
2011-12-21 17:08 ` [U-Boot] [PATCH v2 2/3] fs/fat: Improve error handling Kyle Moffett
2012-01-05 16:15 ` Wolfgang Denk
2011-12-21 17:08 ` [U-Boot] [PATCH v2 3/3] usb_storage: Fix EHCI "out of buffer pointers" with CD-ROM Kyle Moffett
2012-01-05 16:16 ` Wolfgang Denk
2012-02-26 23:08 ` [U-Boot] [PATCH v2 0/3] Enable access to FAT filesystem in an ISO9660 El-Torito volume Marek Vasut
2012-03-30 21:03 ` Wolfgang Denk
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