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Date: Wed, 1 Jun 2016 22:31:52 +0000 From: <Mario_Limonciello@...l.com> To: <andrew@...n.ch> CC: <hayeswang@...ltek.com>, <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>, <linux-usb@...r.kernel.org>, <pali.rohar@...il.com>, <anthony.wong@...onical.com> Subject: RE: [PATCH] r8152: Add support for setting MAC to system's Auxiliary MAC address > -----Original Message----- > From: Andrew Lunn [mailto:andrew@...n.ch] > Sent: Wednesday, June 1, 2016 5:27 PM > To: Limonciello, Mario <Mario_Limonciello@...l.com> > Cc: hayeswang@...ltek.com; LKML <linux-kernel@...r.kernel.org>; Netdev > <netdev@...r.kernel.org>; Linux USB <linux-usb@...r.kernel.org>; > pali.rohar@...il.com; anthony.wong@...onical.com > Subject: Re: [PATCH] r8152: Add support for setting MAC to system's > Auxiliary MAC address > > On Wed, Jun 01, 2016 at 04:50:44PM -0500, Mario Limonciello wrote: > > Dell systems with Type-C ports have support for a persistent system > > specific MAC address when used with Dell Type-C docks and dongles. > > This means a dock plugged into two different systems will show > > different (but persistent) MAC addresses. Dell Type-C docks and > > dongles use the > > r8152 driver. > > > > This information for the system's persistent MAC address is burned in > > when the HW is built and avilable under _SB\AMAC in the DSDT at runtime. > > > > More information about the technology is available here: > > http://www.dell.com/support/article/us/en/04/SLN301147 > > > > Signed-off-by: Mario Limonciello <mario_limonciello@...l.com> > > --- > > drivers/net/usb/Kconfig | 1 + > > drivers/net/usb/r8152.c | 37 > +++++++++++++++++++++++++++++++++++++ > > 2 files changed, 38 insertions(+) > > > > diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index > > cdde590..c320930 100644 > > --- a/drivers/net/usb/Kconfig > > +++ b/drivers/net/usb/Kconfig > > @@ -98,6 +98,7 @@ config USB_RTL8150 > > config USB_RTL8152 > > tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters" > > select MII > > + depends on ACPI > > Hi Mario > > That seems a bit heavy handed. What about ARM or MIPS machines which > don't use ACPI but do have USB ports where i could plug in a USB dongle with > this chipset. > > I think it would be better to make use of ACPI if it is available, but don't > require it in order the build the driver. > > Andrew Hi Andrew, Thanks for that feedback. I'll adjust that to look for CONFIG_ACPI in the code instead in V2 after I get some additional comments for the implementation. Thanks,
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