[U-Boot] [U-Boot,06/10] dfu: mmc: buffer file reads too

[Tom Rini]

On Fri, Sep 04, 2015 at 10:03:47PM -0600, Stephen Warren wrote:

> From: Stephen Warren <swarren at nvidia.com>
> 
> When writing to files in a filesystem on MMC, dfu_mmc.c buffers up the
> entire file content until the end of the transaction, at which point the
> file is written in one go. This allows writing files larger than the USB
> transfer size (CONFIG_SYS_DFU_DATA_BUF_SIZE); the maximum written file
> size is CONFIG_SYS_DFU_MAX_FILE_SIZE (the size of the temporary buffer).
> 
> The current file reading code does not do any buffering, and so limits
> the maximum read file size to the USB transfer size. Enhance the code to
> do the same kind of buffering as the write path, so the same file size
> limits apply.
> 
> Remove the size checking code from dfu_read() since all read paths now
> support larger files than the USB transfer buffer.
> 
> Signed-off-by: Stephen Warren <swarren at nvidia.com>
> Acked-by: Lukasz Majewski <l.majewski at samsung.com>
> Tested-by: Lukasz Majewski <l.majewski at samsung.com>

Applied to u-boot/master, thanks!

-- 
Tom
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