Re: [PATCH] netdev: mv643xx_eth: Prevent build on PPC32

[Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>]

On Tue, Jun 05, 2012 at 10:40:14PM -0400, Josh Boyer wrote:

> > > Commit 452503ebc (ARM: Orion: Eth: Add clk/clkdev support.) added use of
> > > the clk driver API which results in compile errors on architectures that
> > > don't implement the clk API.
> > > 
> > > ERROR: "clk_enable" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> > > ERROR: "clk_disable" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> > > ERROR: "clk_put" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> > > ERROR: "clk_get_rate" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> > > ERROR: "clk_get" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> > > 
> > > Selecting CLKDEV_LOOKUP doesn't fix this either, as the build then fails with:
> > > 
> > > In file included from drivers/clk/clkdev.c:21:0:
> > > include/linux/clkdev.h:15:24: fatal error: asm/clkdev.h: No such file or directory
> > > 
> > > So we just prevent this from building at all on PPC32.
> > 
> > If the PPC32 dependency is no longer relevant (e.g. if Pegasos platform
> > support was removed from the kernel), then the commit message should
> > mention that -- the above reasoning is a poor sole justification for
> > this change.
> 
> You are correct.  As it stands, it's no better than just breaking it
> outright with commit 452503ebc.

ACK.  If I'd have seen that commit ("ARM: Orion: Eth: Add clk/clkdev
support.") come by I would have said something about it, but noone
bothered to CC me on it -- and it doesn't seem that it was CCed to
netdev@ either...?
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