[U-Boot] [PATCH v2 1/3] fs/fat: Fix FAT detection to support non-DOS partition tables

Wolfgang Denk
2012-01-05T16:14:23Z

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

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