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>> >> On Wed, Oct 21, 2026 at 12:23:55PM +0200, Magnus Lindholm wrote: >>> On Wed, Oct 21, 2026 at 10:18 AM Thomas Weißschuh >>> wrote: >> (...) >> >>> Thanks for catching this. I reproduced the build failure on current >>> mainline and confirmed your fix with GENERIC SMP and DP264 UP builds. >>> Both also passed perf register validation and sampling tests in QEMU. >>> >>> Reviewed-by: Magnus Lindholm >>> Tested-by: Magnus Lindholm >> Thanks. >> >>> If you have a route for this patch upstream, please go ahead and take it, >>> unless Linus would prefer to pick it up directly. >> I have no route upstream. I hope for Linus to pick it up. >> But if that does not happen, maybe you could send a PR. > I can stick it in tip/perf/urgent if that helps :-) I'm the one merging > the broken patch in the first place I suppose :/ > >> How this issue made it past -next would also be interesting to know. > Yeah this; normally I get robots screaming at me for things like this. It looks the issue is caused by the merging order. When the patch series "Support SIMD/eGPRs/SSP registers sampling for perf" gets queued, the alpha patches which adds alpha specific perf_reg_validate() variant is still not merged, so the robot didn't find this issue. Thanks.