On Sat, Feb 06, 2021 at 09:49:37AM +0100, Ard Biesheuvel wrote: > This reverts commit 32cf1a12cad43358e47dac8014379c2f33dfbed4. > > The 'exisitng buffer' in this case is the firmware provided table, and > we should not modify that in place. This fixes a crash on arm64 with > initrd table overrides, in which case the DSDT is not mapped with > read/write permissions. > > Cc: Robert Moore <robert.moore@xxxxxxxxx> > Cc: Erik Kaneda <erik.kaneda@xxxxxxxxx> > Cc: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx> > Cc: Len Brown <lenb@xxxxxxxxxx> > Reported-by: Shawn Guo <shawn.guo@xxxxxxxxxx> > Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> Tested-by: Shawn Guo <shawn.guo@xxxxxxxxxx> Thanks for fixing the regression, Ard! Shawn