[PATCH v3 1/1 net-next] NET: FEC: dynamtic check DMA desc buff type
bhutchings at solarflare.com
Wed Mar 20 15:09:17 EDT 2013
On Wed, 2013-03-20 at 17:28 +0000, Ben Hutchings wrote:
> On Wed, 2013-03-20 at 17:04 +0100, Uwe Kleine-König wrote:
> > Hello,
> > On Fri, Jan 04, 2013 at 10:04:23AM +0800, Frank Li wrote:
> > > MX6 and mx28 support enhanced DMA descriptor buff to support 1588
> > > ptp. But MX25, MX3x, MX5x can't support enhanced DMA descriptor buff.
> > > Check fec type and choose correct DMA descriptor buff type.
> > >
> > > Remove static config CONFIG_FEC_PTP.
> > > ptp function will be auto detected.
> > Your patch (now as ff43da86c69d76a726ffe7d1666148960dc1d108 in v3.9-rc1)
> > breaks building with CONFIG_FEC=m:
> > ERROR: "fec_ptp_init" [drivers/net/ethernet/freescale/fec.ko] undefined!
> > ERROR: "fec_ptp_ioctl" [drivers/net/ethernet/freescale/fec.ko] undefined!
> > ERROR: "fec_ptp_start_cyclecounter" [drivers/net/ethernet/freescale/fec.ko] undefined!
> > IMHO you should build fec.o and fec_ptp.o into the same module as they
> > cannot live without each other anyhow.
> They are in the same module. So I don't see how that error is possible.
Sorry, I misread the Makefile. They are either both built as modules or
both built-in, but they are separate modules.
> > Having said I wonder if it would be worthwile to support FEC without
> > PTP_1588_CLOCK. For example make the above three functions static
> > inlines if CONFIG_PTP_1588_CLOCK=n and drop the select on the latter.
> See previous discussions:
Ben Hutchings, Staff Engineer, Solarflare
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They asked us to note that Solarflare product names are trademarked.
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