tree d9c84b8ad646cbf43e20c9a96e5db25b4ccd4ec6
parent c894ed6956f126d60d888e8efc5fb3a595ba89ae
author Catalin Marinas <catalin.marinas@arm.com> 1245426188 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1245426263 +0100

[ARM] 5559/1: Limit the stack unwinding caused by a kthread exit

When a kthread function returns, it branches to do_exit(). However, the
unwinding information isn't valid anymore and any stack trace caused by
do_exit() may be incorrect. This patch adds a kernel_thread_exit()
function and annotated with '.cantunwind' so that the unwinder stops
when reaching it.

Tested-by: Tony Lindgren <tony@atomide.com>

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>