x86-entry-2024-01-08

1e4d3001 · x86/entry: Harden return-to-user · Nov 21, 2023

x86/entry changes for v6.8:

 - Optimize common_interrupt_return()

 - Harden the return-to-user code by making a CONFIG_DEBUG_ENTRY=y
   check unconditional & moving it closer to the IRET.

Signed-off-by: Ingo Molnar <mingo@kernel.org>