On 07.06.19 02:41, James Bottomley wrote: > On Thu, 2019-06-06 at 17:04 +0200, Enrico Weigelt, metux IT consult > wrote: >> From: Enrico Weigelt <info@xxxxxxxxx> >> >> The MODULE_DEVICE_TABLE() macro already checks for MODULE defined, >> so the extra check here is not necessary. >> >> Changes v2: >> * make dptids const to fix warning on unused variable > > I don't think this works; in my version of gcc, const does not defeat > the unused variable warning if I try with a test programme: > > jejb@jarvis:~> gcc -Wunused-variable -c test1.c > test1.c:3:18: warning: ‘i’ defined but not used [-Wunused-cons > t-variable=] > static const int i[] = { 1, 2, 3}; Which gcc version are you using ? Could you please have a try w/ the kernel (plus my patch) ? Tested w/ 6.3.0-18+deb9u1 (stretch-amd64), got no warnings. --mtx -- Enrico Weigelt, metux IT consult Free software and Linux embedded engineering info@xxxxxxxxx -- +49-151-27565287