Module Name: src Committed By: riastradh Date: Fri Apr 7 09:39:48 UTC 2023
Modified Files: src/sys/dev/usb: xhci.c xhcivar.h Log Message: xhci(4): Defer root intr xfers while polling. Root intr xfers require taking adaptive locks, which is forbidden while polling. This is not great -- any USB transfer completion callbacks might try to take adaptive locks, not just uhub_intr, and that will always causes trouble. We get lucky with ukbd_intr because it's not MP-safe, so it relies only on the kernel lock (a spin lock) anyway. But this change brings xhci in line with ehci. PR kern/57326 XXX pullup-8 XXX pullup-9 XXX pullup-10 To generate a diff of this commit: cvs rdiff -u -r1.175 -r1.176 src/sys/dev/usb/xhci.c cvs rdiff -u -r1.22 -r1.23 src/sys/dev/usb/xhcivar.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.