Re: [PATCH] usb/gadget: initialize gadget functions helper befor functions & gadgets

From: Michal Nazarewicz
Date: Mon Mar 04 2013 - 17:40:39 EST


On Mon, Mar 04 2013, Sebastian Andrzej Siewior wrote:
> Fengguang Wu run into a kernel ops after he complied dummy_hcd and g_cdc
> into the kernel. The problem was that u_serial was used by g_cdc before
> u_serial was initialized. In the module case eveything is initialized in
> the correct order but if we compile it into the kernel we rely on
> Makefile order which I did wrong and now I correct this.
>
> Cc: Fengguang Wu <fengguang.wu@xxxxxxxxx>

Should that be Reported-by?

> Signed-off-by: Sebastian Andrzej Siewior <sebastian@xxxxxxxxxxxxx>

Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx>

> ---
> I kinda assumed that this was already fixed (i.e. a patch like this was sent)
> but it seems not to be that case.
>
> drivers/usb/gadget/Makefile | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
> index 97a13c3..1ded3d4 100644
> --- a/drivers/usb/gadget/Makefile
> +++ b/drivers/usb/gadget/Makefile
> @@ -35,6 +35,12 @@ mv_udc-y := mv_udc_core.o
> obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o
> obj-$(CONFIG_USB_MV_U3D) += mv_u3d_core.o
>
> +# USB Functions

Should there be a comment explaining why USB functions must be placed
before gadgets?

> +obj-$(CONFIG_USB_U_SERIAL) += u_serial.o
> +obj-$(CONFIG_USB_F_ACM) += f_acm.o
> +f_ss_lb-y := f_loopback.o f_sourcesink.o
> +obj-$(CONFIG_USB_F_SS_LB) += f_ss_lb.o
> +
> #
> # USB gadget drivers
> #
> @@ -74,9 +80,3 @@ obj-$(CONFIG_USB_G_WEBCAM) += g_webcam.o
> obj-$(CONFIG_USB_G_NCM) += g_ncm.o
> obj-$(CONFIG_USB_G_ACM_MS) += g_acm_ms.o
> obj-$(CONFIG_USB_GADGET_TARGET) += tcm_usb_gadget.o
> -
> -# USB Functions
> -obj-$(CONFIG_USB_F_ACM) += f_acm.o
> -f_ss_lb-y := f_loopback.o f_sourcesink.o
> -obj-$(CONFIG_USB_F_SS_LB) += f_ss_lb.o
> -obj-$(CONFIG_USB_U_SERIAL) += u_serial.o



--
Best regards, _ _
.o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o
..o | Computer Science, MichaÅ âmina86â Nazarewicz (o o)
ooo +----<email/xmpp: mpn@xxxxxxxxxx>--------------ooO--(_)--Ooo--

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