On Mon, Dec 12, 2016 at 11:22:30AM +0000, Vaneet Narang wrote: > Hi, > > >A PC24 relocation has a range of +/-32MB. This means that where-ever > >the module is placed, it must be capable of reaching any function > >within the kernel text, which may itself be quite large (eg, 8MB, or > >possibly larger). The module area exists to allow modules to be > >located in an area where PC24 relocations are able to reach all of the > >kernel text on sensibly configured kernels, thereby allowing for > >optimal performance. > > > >If you wish to load large modules, then enable ARM_MODULE_PLTS, which > >will use the less efficient PLT method (which is basically an indirect > >function call) for relocations that PC24 can't handle, and will allow > >the module to be loaded into the vmalloc area. > > > >Growing the module area so that smaller modules also get penalised by > >the PLT indirection is not sane. > > This is exactly what i am saying. These changes are useful to accomdate > 22MB modules without enabling ARM_MODULE_PLTS.
Obviously I wasn't clear enough. No, I do not like your change for the reasons given above. I'm not going to accept it. If you want to use 22MB modules, enable ARM_MODULE_PLTS. Thank you. -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.
