Re: [PATCH v3] staging/gdm72xx: usb_boot: replace firmware upgrade API in em_download

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On Fri, Sep 14, 2012 at 02:02:04PM +0800, Macpaul Lin wrote:
> Replace firmware upgrade API in em_download_image().
> 
> Signed-off-by: Macpaul Lin <macpaul@xxxxxxxxx>
> Cc: Paul Stewart <pstew@xxxxxxxxxxxx>
> Cc: Ben Chan <benchan@xxxxxxxxxxxx>
> Cc: Sage Ahn <syahn@xxxxxxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> Changes for v2:
>   - Correction the procedure in em_download_image() and usb_emergency()
>   - keep "goto out" in em_download_image because release_firmware is
>     required in many case during download fail.
> 
> Changes for v3:
>   - Add "const" declaration for char * variables which is used for
>     firmware names.
> 
>  drivers/staging/gdm72xx/usb_boot.c | 77 ++++++++++++++++++--------------------
>  1 file changed, 37 insertions(+), 40 deletions(-)
> 
> diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c
> index 80870a0..0787188 100644
> --- a/drivers/staging/gdm72xx/usb_boot.c
> +++ b/drivers/staging/gdm72xx/usb_boot.c
> @@ -32,8 +32,8 @@
>  #define MAX_IMG_CNT		16
>  #define FW_DIR			"gdm72xx/"
>  #define FW_UIMG			"gdmuimg.bin"
> -#define KERN_PATH		"/lib/firmware/gdm72xx/zImage"
> -#define FS_PATH			"/lib/firmware/gdm72xx/ramdisk.jffs2"
> +#define FW_KERN			"zImage"
> +#define FW_FS			"ramdisk.jffs2"

For some reason, I don't think that this really is your "firmware" name,
right?  That looks like a kernel and a filesystem name.

What is going on here with this code?  Why would the kernel load a
kernel?

greg k-h
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