[PATCH 0/5] x86/asm/entry/64: simplifications

[Denys Vlasenko]

This patchset simplifies jump maze in entry_64.S a bit by moving
"retint_kernel" code block, and follows up with simplifications
which become obvious after the move.

Two labels and one define is gone
One label is no longer .global
One redundand DISABLE_INTERRUPTS is gone
A few jump and test instructions use shorter forms now

   text           data     bss     dec     hex filename
  12706              0       0   12706    31a2 entry_64.o.before
  12658              0       0   12658    3172 entry_64.o

Patchset was run-tested (running it while writing this).

Denys Vlasenko (5):
  x86/asm/entry/64: move retint_kernel code block closer to its user
  x86/asm/entry/64: simplify retint_kernel label usage, make
    retint_restore_args label local
  x86/asm/entry/64: remove redundant DISABLE_INTERRUPTS
  x86/asm/entry/64: do not GET_THREAD_INFO() too early
  x86/asm/entry/64: drop exit_intr label

 arch/x86/kernel/entry_64.S | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)
---
CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
CC: Steven Rostedt <rostedt@xxxxxxxxxxx>
CC: Ingo Molnar <mingo@xxxxxxxxxx>
CC: Borislav Petkov <bp@xxxxxxxxx>
CC: "H. Peter Anvin" <hpa@xxxxxxxxx>
CC: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
CC: Oleg Nesterov <oleg@xxxxxxxxxx>
CC: Frederic Weisbecker <fweisbec@xxxxxxxxx>
CC: Alexei Starovoitov <ast@xxxxxxxxxxxx>
CC: Will Drewry <wad@xxxxxxxxxxxx>
CC: Kees Cook <keescook@xxxxxxxxxxxx>
CC: x86@xxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx

-- 
1.8.1.4

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