Hi Michal, Zubair, On Fri, Sep 02, 2016 at 12:27:54PM +0200, Michal Simek wrote: > On 2.9.2016 12:06, Zubair Lutfullah Kakakhel wrote: > > On 09/02/2016 07:25 AM, Michal Simek wrote: ... > >> Also there is another copy of this driver in the tree which was using > >> old ppc405 and ppc440 xilinx platforms. > >> > >> arch/powerpc/include/asm/xilinx_intc.h > >> arch/powerpc/sysdev/xilinx_intc.c > >> > >> These should be also removed by moving this driver to generic folder. > > > > I didn't know about that drivers existence. > > > > This patch series already touches microblaze, mips and irqchip. > > Both microblaze and mips platforms using this driver are little-endian. > > MB is big ending too and as you see there is big endian support in the > driver already. > > > > > Adding a big-endian powerpc driver + platform to the mix is going to > > complicate the series further and make it super hard to synchronize > > various subsystems, test stuff, and then move the drivers without > > breakage.
The whole point of Linus' push to move drivers out of arch/ is to reduce code duplication and create more robust drivers. > > I'd highly recommend letting this move happen. And then the powerpc > > driver can transition over time to this driver. I've seen this argument before, and despite everyone's best intentions, it never happens. :( We have linux-next, 0-day and other resources to test these sorts of changes and catch errors before they hit mainline. Let's take our time and do it right. thx, Jason.
