On Wed, Nov 19, 2014 at 10:54:05PM +0200, Aaro Koskinen wrote: > On Wed, Nov 19, 2014 at 03:47:18PM +0100, Ralf Baechle wrote: > > Since I while already I'm getting this failure: > > > > ERROR: "loongson_sysconf" [arch/mips/loongson/common/serial.ko] undefined! > > scripts/Makefile.modpost:90: recipe for target '__modpost' failed > > make[1]: *** [__modpost] Error 1 > > Makefile:1097: recipe for target 'modules' failed > > make: *** [modules] Error 2 > > > > > > Below a config file to trigger the issue. > > Are you sure you posted the right config? The modular serial 8250 build > works fine for me for 2F, and also your config works. Quite certainly - the buildbot sends me the error messages followed by the config file used (which is not one of the defconfig but tweaked in weird ways) in a single mail. This issue is popping up for a number of days already for the upstream-sfr tree's mips-for-linux-next branch; I last saw it for commit 298395f5f43d1ea4b00e8c9ddaa01d9d8e653582 which is still the current HEAD of that tree. I don't see an EXPORT_SYMBOL for loongson_sysconf in that tree. I took a quick look at arch/mips/loongson/common/serial.c. This file probably shouldn't register a platform device - that's dangerous business from a module. And it indeed looks like it had never been thought through what will happen if this file was a module. Just build it always. Ralf
