Re: [PATCH v3 6/6] usb: gadget: f_fs: show instance name in debug message

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On Mon, Mar 27, 2023 at 06:12:20PM +0800, Linyu Yuan wrote:
> show ffs->dev_name in all possible debug message.
> 
> Signed-off-by: Linyu Yuan <quic_linyyuan@xxxxxxxxxxx>
> ---
> v3: change according comments
> v2: split to several changes according to v1 comments
> v1: https://lore.kernel.org/linux-usb/1679481369-30094-1-git-send-email-quic_linyyuan@xxxxxxxxxxx/
> 
>  drivers/usb/gadget/function/f_fs.c | 141 ++++++++++++++++++++-----------------
>  1 file changed, 75 insertions(+), 66 deletions(-)
> 
> diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
> index 0761eaa..383343d 100644
> --- a/drivers/usb/gadget/function/f_fs.c
> +++ b/drivers/usb/gadget/function/f_fs.c
> @@ -317,12 +317,12 @@ static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)
>  static int __ffs_ep0_stall(struct ffs_data *ffs)
>  {
>  	if (ffs->ev.can_stall) {
> -		dev_vdbg(ffs->dev, "ep0 stall\n");
> +		dev_vdbg(ffs->dev, "%s: ep0 stall\n", ffs->dev_name);

You already have the name here, it's in the usb-gadget structure, why do
you need to print it out again?

What is the before and after output of this change?  I think it should
have the same information already in it.

thanks,

greg k-h



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