linux-kernel - RE: Build errors in -next due to 'drivers:usb:fsl:Make fsl ehci drv an independent driver module'

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Date:	Thu, 28 May 2015 03:55:24 +0000
From:	Ramneek Mehresh <ramneek.mehresh@...escale.com>
To:	Guenter Roeck <linux@...ck-us.net>
CC:	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>
Subject: RE: Build errors in -next due to 'drivers:usb:fsl:Make fsl ehci drv
 an independent driver module'



> -----Original Message-----
> From: Guenter Roeck [mailto:linux@...ck-us.net]
> Sent: Thursday, May 28, 2015 1:29 AM
> To: Mehresh Ramneek-B31383
> Cc: Alan Stern; Greg Kroah-Hartman; linux-kernel@...r.kernel.org; linux-
> next@...r.kernel.org
> Subject: Build errors in -next due to 'drivers:usb:fsl:Make fsl ehci drv an
> independent driver module'
> 
> Hi,
> 
> your patch 'drivers:usb:fsl:Make fsl ehci drv an independent driver module'
> converts the driver into a separate module. Unfortunately, it uses non-
> exported functions from the ehci core code. This results in compile errors for
> several powerpc configurations.
> 
> drivers/usb/host/ehci-fsl.c: In function 'ehci_fsl_drv_suspend':
> drivers/usb/host/ehci-fsl.c:531:2: error: implicit declaration of function
> 'ehci_adjust_port_wakeup_flags'
> drivers/usb/host/ehci-fsl.c: In function 'ehci_fsl_drv_resume':
> drivers/usb/host/ehci-fsl.c:561:2: error: implicit declaration of function
> 'ehci_reset'
>
Understood...apologies for the inconvenience caused. This problem comes when both 
ehci_hcd and ehci_fsl are built as modules. Till now, only ehci-hcd was build as 
module, and other drivers were built into it. I tested ehci_fsl as a module with ehci_hcd as build-in.

Now, there are two solutions for this.
1. export each function in ehci_hcd.c
2. I make ehci-fsl.c as built-in

Please suggest.
 
> Guenter
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