x86/unwind: Move common code into update_stack_state()

Browse source

The __unwind_start() and unwind_next_frame() functions have some
duplicated functionality.  They both call decode_frame_pointer() and set
state->regs and state->bp accordingly.  Move that functionality to a
common place in update_stack_state().

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/a2ee4801113f6d2300d58f08f6b69f85edf4eb43.1492020577.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

This commit is contained in:

Josh Poimboeuf 2017-04-12 13:47:10 -05:00 • committed by Ingo Molnar

parent b5effd3815

commit 5ed8d8bb38

1 changed files with 55 additions and 64 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

119

arch/x86/kernel/unwind_frame.c

View file