[PATCH v2 1/7] spi/imx: do not make copy of spi_imx_devtype_data

Lothar Waßmann LW at KARO-electronics.de
Mon Jul 11 03:49:07 EDT 2011


Uwe Kleine-König writes:
> On Mon, Jul 11, 2011 at 09:15:34AM +0200, Lothar Waßmann wrote:
> > Hi,
> > 
> > Shawn Guo writes:
> > > spi_imx_devtype_data has already been driver private data.  There is
> > > really no need to make a copy in spi_imx_data.  Instead, a reference
> > > pointer works perfectly fine.
> > > 
> > You obviously overlooked, that the copy is done on purpose to keep
> > only the data that is actually needed and discard everything else
> > after initialisation.
> though you could argue that __devinitdata isn't discarded on modern
> systems anyhow (and Shawn's patch takes care of removing that
> annotation).
> 
Shawn's comment should probably have reflected that...


Lothar Waßmann
-- 
___________________________________________________________

Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen
Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10
Geschäftsführer: Matthias Kaussen
Handelsregistereintrag: Amtsgericht Aachen, HRB 4996

www.karo-electronics.de | info at karo-electronics.de
___________________________________________________________



More information about the linux-arm-kernel mailing list