Re: [RFC RESEND 00/10] Create separate header for ehci-dbgp driver

From: Greg Kroah-Hartman
Date: Mon Nov 03 2014 - 18:09:22 EST


On Sun, Nov 02, 2014 at 09:07:47PM -0600, Chris Rorvick wrote:
> One more attempt at getting some feedback.
>
> Original:
>
> The FUSBH200 and FOTG210 are not EHCI-compatible and require standalone
> drivers. See discussion at:
>
> http://comments.gmane.org/gmane.linux.usb.general/84169
>
> But these controllers do implement an EHCI-compatible debug port and
> therefore leverage the ehci-dbgp driver. Rather than pulling in the
> necessary declarations from <linux/usb/ehci_def.h>, each driver copies
> this code into their own header. The goal of this series is to pull the
> ehci-dbgp related code into its own header to remove the need for this
> redundancy.
>
> I have done only minimal testing on this, and I don't use either of
> these controller so my ability to test the changes is limited. But I
> thought I'd push it out for comment to see if there was interest.
>
> The only actual change should be when CONFIG_EARLY_PRINTK_DBGP is
> disabled and CONFIG_XEN_DOM0 is enabled. Currently each of these does
> not notify Xen of reset events under this configuration. Since these
> events are propagated when CONFIG_EARLY_PRINTK_DBGP and CONFIG_XEN_DOM0
> are both enabled, though, it seems that is not a problem (and maybe not
> sending them in the former case is a bug?) Regardless, the motivation
> for this change is for consistancy as a step towrads consolidation. As
> I said above, I am not able to actually test these changes on either
> controller.
>
> First time submission, so I look forward to any feedback. If this is of
> any interest I will work on testing the various configations and boot
> parameters.
>
> Regards,
>
> Chris Rorvick
>
> Chris Rorvick (10):
> usb: Create separate header for ehci-dbgp
> fusbh200: Make Xen notificaiton consistent with EHCI
> fusbh200: Remove superfluous macro definitions
> fusbh200: Remove duplicate ehci-dbgp declarations
> fusbh200: Use ehci_dbg_port struct
> fotg210: Make Xen notificaiton consistent with EHCI
> fotg210: Remove superfluous macro definitions
> fotg210: Remove duplicate ehci-dbgp declarations
> fotg210: Use ehci_dbg_port struct
> usb: Remove __init from early_dbgp_init() prototype
>
> drivers/usb/host/fotg210.h | 62 ++------------------------------
> drivers/usb/host/fusbh200.h | 62 ++------------------------------
> include/linux/usb/ehci-dbgp.h | 83 +++++++++++++++++++++++++++++++++++++++++++
> include/linux/usb/ehci_def.h | 65 ++-------------------------------
> 4 files changed, 91 insertions(+), 181 deletions(-)
> create mode 100644 include/linux/usb/ehci-dbgp.h

It deletes lines of code overall, which looks good to me. Feel free to
resend without the "RFC" and I will queue it up.

thanks,

greg k-h
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