Commits
Josh Poimboeuf committed ec2d86a9b64
x86/boot/64: Use 'push' instead of 'call' in start_cpu() start_cpu() pushes a text address on the stack so that stack traces from idle tasks will show start_cpu() at the end. But it uses a call instruction to do that, which is rather obtuse. Use a straightforward push instead. Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> 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> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/4d8a1952759721d42d1e62ba9e4a7e3ac5df8574.1481685203.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>