https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121432
--- Comment #24 from Gopi Kumar Bulusu <gopi at sankhya dot com> --- Yes already building with 15.2 Figured the patch was in and removed the patch and restarted the build. Once I get kernel to fail, planning a simpler fix (workaround ?) in irq.c out of respect for entry.S
