| commit | faabfa0816916b0a7cfc93f6a9be382830658c80 | [log] [tgz] |
|---|---|---|
| author | Russell King <rmk+kernel@arm.linux.org.uk> | Mon Dec 20 16:58:19 2010 +0000 |
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | Mon Dec 20 16:58:19 2010 +0000 |
| tree | 95b003cd7a92c20e4212ab7d315fc75287f91bd8 | |
| parent | 03b505eae6a276b8c38b6222694afb6cea10b1cc [diff] |
ARM: SMP: ensure frame pointer is reinitialized for soft-CPU hotplug When we soft-CPU hotplug a CPU, we reset the stack pointer and jump back to start_secondary(). This allows us to restart as if the CPU was actually reset. However, we weren't resetting the frame pointer, which could cause problems with backtracing. Reset the frame pointer to zero (which means no parent frame) just like the early assembly code also does. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>