x86/entry/64: Shrink paranoid_exit_restore and make labels local
authorAndy Lutomirski <luto@kernel.org>
Thu, 2 Nov 2017 07:59:02 +0000 (00:59 -0700)
committerIngo Molnar <mingo@kernel.org>
Thu, 2 Nov 2017 10:04:39 +0000 (11:04 +0100)
commite53178328c9b96fbdbc719e78c93b5687ee007c3
treeb1b4b288f1ee2e55eebcb7795c9b65cfb552ff07
parente872045bfd9c465a8555bab4b8567d56a4d2d3bb
x86/entry/64: Shrink paranoid_exit_restore and make labels local

paranoid_exit_restore was a copy of restore_regs_and_return_to_kernel.
Merge them and make the paranoid_exit internal labels local.

Keeping .Lparanoid_exit makes the code a bit shorter because it
allows a 2-byte jnz instead of a 5-byte jnz.

Saves 96 bytes of text.

( This is still a bit suboptimal in a non-CONFIG_TRACE_IRQFLAGS
  kernel, but fixing that would make the code rather messy. )

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/510d66a1895cda9473c84b1086f0bb974f22de6a.1509609304.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/entry/entry_64.S